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903,628 commits

Author SHA1 Message Date
Madhavan Srinivasan
f2aec1069f powerpc: Fix struct termio related ioctl macros
[ Upstream commit ab107276607af90b13a5994997e19b7b9731e251 ]

Since termio interface is now obsolete, include/uapi/asm/ioctls.h
has some constant macros referring to "struct termio", this caused
build failure at userspace.

In file included from /usr/include/asm/ioctl.h:12,
                 from /usr/include/asm/ioctls.h:5,
                 from tst-ioctls.c:3:
tst-ioctls.c: In function 'get_TCGETA':
tst-ioctls.c:12:10: error: invalid application of 'sizeof' to incomplete type 'struct termio'
   12 |   return TCGETA;
      |          ^~~~~~

Even though termios.h provides "struct termio", trying to juggle definitions around to
make it compile could introduce regressions. So better to open code it.

Reported-by: Tulio Magno <tuliom@ascii.art.br>
Suggested-by: Nicholas Piggin <npiggin@gmail.com>
Tested-by: Justin M. Forbes <jforbes@fedoraproject.org>
Reviewed-by: Michael Ellerman <mpe@ellerman.id.au>
Closes: https://lore.kernel.org/linuxppc-dev/8734dji5wl.fsf@ascii.art.br/
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/20250517142237.156665-1-maddy@linux.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-07-17 18:24:57 +02:00
Johannes Berg
2b61eebbd0 ata: pata_cs5536: fix build on 32-bit UML
[ Upstream commit fe5b391fc56f77cf3c22a9dd4f0ce20db0e3533f ]

On 32-bit ARCH=um, CONFIG_X86_32 is still defined, so it
doesn't indicate building on real X86 machines. There's
no MSR on UML though, so add a check for CONFIG_X86.

Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://lore.kernel.org/r/20250606090110.15784-2-johannes@sipsolutions.net
Signed-off-by: Niklas Cassel <cassel@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-07-17 18:24:57 +02:00
Takashi Iwai
78c0ba1d1c ALSA: sb: Force to disable DMAs once when DMA mode is changed
[ Upstream commit 4c267ae2ef349639b4d9ebf00dd28586a82fdbe6 ]

When the DMA mode is changed on the (still real!) SB AWE32 after
playing a stream and closing, the previous DMA setup was still
silently kept, and it can confuse the hardware, resulting in the
unexpected noises.  As a workaround, enforce the disablement of DMA
setups when the DMA setup is changed by the kcontrol.

https://bugzilla.kernel.org/show_bug.cgi?id=218185
Link: https://patch.msgid.link/20250610064322.26787-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-07-17 18:24:57 +02:00
Lion Ackermann
3b290923ad net/sched: Always pass notifications when child class becomes empty
[ Upstream commit 103406b38c600fec1fe375a77b27d87e314aea09 ]

Certain classful qdiscs may invoke their classes' dequeue handler on an
enqueue operation. This may unexpectedly empty the child qdisc and thus
make an in-flight class passive via qlen_notify(). Most qdiscs do not
expect such behaviour at this point in time and may re-activate the
class eventually anyways which will lead to a use-after-free.

The referenced fix commit attempted to fix this behavior for the HFSC
case by moving the backlog accounting around, though this turned out to
be incomplete since the parent's parent may run into the issue too.
The following reproducer demonstrates this use-after-free:

    tc qdisc add dev lo root handle 1: drr
    tc filter add dev lo parent 1: basic classid 1:1
    tc class add dev lo parent 1: classid 1:1 drr
    tc qdisc add dev lo parent 1:1 handle 2: hfsc def 1
    tc class add dev lo parent 2: classid 2:1 hfsc rt m1 8 d 1 m2 0
    tc qdisc add dev lo parent 2:1 handle 3: netem
    tc qdisc add dev lo parent 3:1 handle 4: blackhole

    echo 1 | socat -u STDIN UDP4-DATAGRAM:127.0.0.1:8888
    tc class delete dev lo classid 1:1
    echo 1 | socat -u STDIN UDP4-DATAGRAM:127.0.0.1:8888

Since backlog accounting issues leading to a use-after-frees on stale
class pointers is a recurring pattern at this point, this patch takes
a different approach. Instead of trying to fix the accounting, the patch
ensures that qdisc_tree_reduce_backlog always calls qlen_notify when
the child qdisc is empty. This solves the problem because deletion of
qdiscs always involves a call to qdisc_reset() and / or
qdisc_purge_queue() which ultimately resets its qlen to 0 thus causing
the following qdisc_tree_reduce_backlog() to report to the parent. Note
that this may call qlen_notify on passive classes multiple times. This
is not a problem after the recent patch series that made all the
classful qdiscs qlen_notify() handlers idempotent.

Fixes: 3f981138109f ("sch_hfsc: Fix qlen accounting bug when using peek in hfsc_enqueue()")
Signed-off-by: Lion Ackermann <nnamrec@gmail.com>
Reviewed-by: Jamal Hadi Salim <jhs@mojatatu.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Link: https://patch.msgid.link/d912cbd7-193b-4269-9857-525bee8bbb6a@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-07-17 18:24:57 +02:00
Thomas Fourier
73c38e679a nui: Fix dma_mapping_error() check
[ Upstream commit 561aa0e22b70a5e7246b73d62a824b3aef3fc375 ]

dma_map_XXX() functions return values DMA_MAPPING_ERROR as error values
which is often ~0.  The error value should be tested with
dma_mapping_error().

This patch creates a new function in niu_ops to test if the mapping
failed.  The test is fixed in niu_rbr_add_page(), added in
niu_start_xmit() and the successfully mapped pages are unmaped upon error.

Fixes: ec2deec1f3 ("niu: Fix to check for dma mapping errors.")
Signed-off-by: Thomas Fourier <fourier.thomas@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-07-17 18:24:57 +02:00
Alok Tiwari
32bc854b8f enic: fix incorrect MTU comparison in enic_change_mtu()
[ Upstream commit aaf2b2480375099c022a82023e1cd772bf1c6a5d ]

The comparison in enic_change_mtu() incorrectly used the current
netdev->mtu instead of the new new_mtu value when warning about
an MTU exceeding the port MTU. This could suppress valid warnings
or issue incorrect ones.

Fix the condition and log to properly reflect the new_mtu.

Fixes: ab123fe071 ("enic: handle mtu change for vf properly")
Signed-off-by: Alok Tiwari <alok.a.tiwari@oracle.com>
Acked-by: John Daley <johndale@cisco.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250628145612.476096-1-alok.a.tiwari@oracle.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-07-17 18:24:57 +02:00
Raju Rangoju
0247896973 amd-xgbe: align CL37 AN sequence as per databook
[ Upstream commit 42fd432fe6d320323215ebdf4de4d0d7e56e6792 ]

Update the Clause 37 Auto-Negotiation implementation to properly align
with the PCS hardware specifications:
- Fix incorrect bit settings in Link Status and Link Duplex fields
- Implement missing sequence steps 2 and 7

These changes ensure CL37 auto-negotiation protocol follows the exact
sequence patterns as specified in the hardware databook.

Fixes: 1bf40ada62 ("amd-xgbe: Add support for clause 37 auto-negotiation")
Signed-off-by: Raju Rangoju <Raju.Rangoju@amd.com>
Link: https://patch.msgid.link/20250630192636.3838291-1-Raju.Rangoju@amd.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-07-17 18:24:57 +02:00
Dan Carpenter
80e9028f5c lib: test_objagg: Set error message in check_expect_hints_stats()
[ Upstream commit e6ed134a4ef592fe1fd0cafac9683813b3c8f3e8 ]

Smatch complains that the error message isn't set in the caller:

    lib/test_objagg.c:923 test_hints_case2()
    error: uninitialized symbol 'errmsg'.

This static checker warning only showed up after a recent refactoring
but the bug dates back to when the code was originally added.  This
likely doesn't affect anything in real life.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/r/202506281403.DsuyHFTZ-lkp@intel.com/
Fixes: 0a020d416d ("lib: introduce initial implementation of object aggregation manager")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/8548f423-2e3b-4bb7-b816-5041de2762aa@sabinyo.mountain
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-07-17 18:24:56 +02:00
Marek Szyprowski
71ac65ebd9 drm/exynos: fimd: Guard display clock control with runtime PM calls
[ Upstream commit 5d91394f236167ac624b823820faf4aa928b889e ]

Commit c9b1150a68d9 ("drm/atomic-helper: Re-order bridge chain pre-enable
and post-disable") changed the call sequence to the CRTC enable/disable
and bridge pre_enable/post_disable methods, so those bridge methods are
now called when CRTC is not yet enabled.

This causes a lockup observed on Samsung Peach-Pit/Pi Chromebooks. The
source of this lockup is a call to fimd_dp_clock_enable() function, when
FIMD device is not yet runtime resumed. It worked before the mentioned
commit only because the CRTC implemented by the FIMD driver was always
enabled what guaranteed the FIMD device to be runtime resumed.

This patch adds runtime PM guards to the fimd_dp_clock_enable() function
to enable its proper operation also when the CRTC implemented by FIMD is
not yet enabled.

Fixes: 196e059a8a ("drm/exynos: convert clock_enable crtc callback to pipeline clock")
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-07-17 18:24:56 +02:00
Filipe Manana
9b506d95bb btrfs: fix missing error handling when searching for inode refs during log replay
[ Upstream commit 6561a40ceced9082f50c374a22d5966cf9fc5f5c ]

During log replay, at __add_inode_ref(), when we are searching for inode
ref keys we totally ignore if btrfs_search_slot() returns an error. This
may make a log replay succeed when there was an actual error and leave
some metadata inconsistency in a subvolume tree. Fix this by checking if
an error was returned from btrfs_search_slot() and if so, return it to
the caller.

Fixes: e02119d5a7 ("Btrfs: Add a write ahead tree log to optimize synchronous operations")
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-07-17 18:24:56 +02:00
Thomas Fourier
5e6d24e635 scsi: qla4xxx: Fix missing DMA mapping error in qla4xxx_alloc_pdu()
[ Upstream commit 00f452a1b084efbe8dcb60a29860527944a002a1 ]

dma_map_XXX() can fail and should be tested for errors with
dma_mapping_error().

Fixes: b3a271a94d ("[SCSI] qla4xxx: support iscsiadm session mgmt")
Signed-off-by: Thomas Fourier <fourier.thomas@gmail.com>
Link: https://lore.kernel.org/r/20250618071742.21822-2-fourier.thomas@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-07-17 18:24:56 +02:00
Kuniyuki Iwashima
8785701fd7 nfs: Clean up /proc/net/rpc/nfs when nfs_fs_proc_net_init() fails.
[ Upstream commit e8d6f3ab59468e230f3253efe5cb63efa35289f7 ]

syzbot reported a warning below [1] following a fault injection in
nfs_fs_proc_net_init(). [0]

When nfs_fs_proc_net_init() fails, /proc/net/rpc/nfs is not removed.

Later, rpc_proc_exit() tries to remove /proc/net/rpc, and the warning
is logged as the directory is not empty.

Let's handle the error of nfs_fs_proc_net_init() properly.

[0]:
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 1 UID: 0 PID: 6120 Comm: syz.2.27 Not tainted 6.16.0-rc1-syzkaller-00010-g2c4a1f3fe03e #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call Trace:
 <TASK>
  dump_stack_lvl (lib/dump_stack.c:123)
 should_fail_ex (lib/fault-inject.c:73 lib/fault-inject.c:174)
 should_failslab (mm/failslab.c:46)
 kmem_cache_alloc_noprof (mm/slub.c:4178 mm/slub.c:4204)
 __proc_create (fs/proc/generic.c:427)
 proc_create_reg (fs/proc/generic.c:554)
 proc_create_net_data (fs/proc/proc_net.c:120)
 nfs_fs_proc_net_init (fs/nfs/client.c:1409)
 nfs_net_init (fs/nfs/inode.c:2600)
 ops_init (net/core/net_namespace.c:138)
 setup_net (net/core/net_namespace.c:443)
 copy_net_ns (net/core/net_namespace.c:576)
 create_new_namespaces (kernel/nsproxy.c:110)
 unshare_nsproxy_namespaces (kernel/nsproxy.c:218 (discriminator 4))
 ksys_unshare (kernel/fork.c:3123)
 __x64_sys_unshare (kernel/fork.c:3190)
 do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
 entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
 </TASK>

[1]:
remove_proc_entry: removing non-empty directory 'net/rpc', leaking at least 'nfs'
 WARNING: CPU: 1 PID: 6120 at fs/proc/generic.c:727 remove_proc_entry+0x45e/0x530 fs/proc/generic.c:727
Modules linked in:
CPU: 1 UID: 0 PID: 6120 Comm: syz.2.27 Not tainted 6.16.0-rc1-syzkaller-00010-g2c4a1f3fe03e #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
 RIP: 0010:remove_proc_entry+0x45e/0x530 fs/proc/generic.c:727
Code: 3c 02 00 0f 85 85 00 00 00 48 8b 93 d8 00 00 00 4d 89 f0 4c 89 e9 48 c7 c6 40 ba a2 8b 48 c7 c7 60 b9 a2 8b e8 33 81 1d ff 90 <0f> 0b 90 90 e9 5f fe ff ff e8 04 69 5e ff 90 48 b8 00 00 00 00 00
RSP: 0018:ffffc90003637b08 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffff88805f534140 RCX: ffffffff817a92c8
RDX: ffff88807da99e00 RSI: ffffffff817a92d5 RDI: 0000000000000001
RBP: ffff888033431ac0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffff888033431a00
R13: ffff888033431ae4 R14: ffff888033184724 R15: dffffc0000000000
FS:  0000555580328500(0000) GS:ffff888124a62000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f71733743e0 CR3: 000000007f618000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
  sunrpc_exit_net+0x46/0x90 net/sunrpc/sunrpc_syms.c:76
  ops_exit_list net/core/net_namespace.c:200 [inline]
  ops_undo_list+0x2eb/0xab0 net/core/net_namespace.c:253
  setup_net+0x2e1/0x510 net/core/net_namespace.c:457
  copy_net_ns+0x2a6/0x5f0 net/core/net_namespace.c:574
  create_new_namespaces+0x3ea/0xa90 kernel/nsproxy.c:110
  unshare_nsproxy_namespaces+0xc0/0x1f0 kernel/nsproxy.c:218
  ksys_unshare+0x45b/0xa40 kernel/fork.c:3121
  __do_sys_unshare kernel/fork.c:3192 [inline]
  __se_sys_unshare kernel/fork.c:3190 [inline]
  __x64_sys_unshare+0x31/0x40 kernel/fork.c:3190
  do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
  do_syscall_64+0xcd/0x490 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa1a6b8e929
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff3a090368 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007fa1a6db5fa0 RCX: 00007fa1a6b8e929
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000040000080
RBP: 00007fa1a6c10b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa1a6db5fa0 R14: 00007fa1a6db5fa0 R15: 0000000000000001
 </TASK>

Fixes: d47151b79e32 ("nfs: expose /proc/net/sunrpc/nfs in net namespaces")
Reported-by: syzbot+a4cc4ac22daa4a71b87c@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=a4cc4ac22daa4a71b87c
Tested-by: syzbot+a4cc4ac22daa4a71b87c@syzkaller.appspotmail.com
Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-07-17 18:24:56 +02:00
Mark Zhang
716b555fc0 RDMA/mlx5: Initialize obj_event->obj_sub_list before xa_insert
[ Upstream commit 8edab8a72d67742f87e9dc2e2b0cdfddda5dc29a ]

The obj_event may be loaded immediately after inserted, then if the
list_head is not initialized then we may get a poisonous pointer.  This
fixes the crash below:

 mlx5_core 0000:03:00.0: MLX5E: StrdRq(1) RqSz(8) StrdSz(2048) RxCqeCmprss(0 enhanced)
 mlx5_core.sf mlx5_core.sf.4: firmware version: 32.38.3056
 mlx5_core 0000:03:00.0 en3f0pf0sf2002: renamed from eth0
 mlx5_core.sf mlx5_core.sf.4: Rate limit: 127 rates are supported, range: 0Mbps to 195312Mbps
 IPv6: ADDRCONF(NETDEV_CHANGE): en3f0pf0sf2002: link becomes ready
 Unable to handle kernel NULL pointer dereference at virtual address 0000000000000060
 Mem abort info:
   ESR = 0x96000006
   EC = 0x25: DABT (current EL), IL = 32 bits
   SET = 0, FnV = 0
   EA = 0, S1PTW = 0
 Data abort info:
   ISV = 0, ISS = 0x00000006
   CM = 0, WnR = 0
 user pgtable: 4k pages, 48-bit VAs, pgdp=00000007760fb000
 [0000000000000060] pgd=000000076f6d7003, p4d=000000076f6d7003, pud=0000000777841003, pmd=0000000000000000
 Internal error: Oops: 96000006 [#1] SMP
 Modules linked in: ipmb_host(OE) act_mirred(E) cls_flower(E) sch_ingress(E) mptcp_diag(E) udp_diag(E) raw_diag(E) unix_diag(E) tcp_diag(E) inet_diag(E) binfmt_misc(E) bonding(OE) rdma_ucm(OE) rdma_cm(OE) iw_cm(OE) ib_ipoib(OE) ib_cm(OE) isofs(E) cdrom(E) mst_pciconf(OE) ib_umad(OE) mlx5_ib(OE) ipmb_dev_int(OE) mlx5_core(OE) kpatch_15237886(OEK) mlxdevm(OE) auxiliary(OE) ib_uverbs(OE) ib_core(OE) psample(E) mlxfw(OE) tls(E) sunrpc(E) vfat(E) fat(E) crct10dif_ce(E) ghash_ce(E) sha1_ce(E) sbsa_gwdt(E) virtio_console(E) ext4(E) mbcache(E) jbd2(E) xfs(E) libcrc32c(E) mmc_block(E) virtio_net(E) net_failover(E) failover(E) sha2_ce(E) sha256_arm64(E) nvme(OE) nvme_core(OE) gpio_mlxbf3(OE) mlx_compat(OE) mlxbf_pmc(OE) i2c_mlxbf(OE) sdhci_of_dwcmshc(OE) pinctrl_mlxbf3(OE) mlxbf_pka(OE) gpio_generic(E) i2c_core(E) mmc_core(E) mlxbf_gige(OE) vitesse(E) pwr_mlxbf(OE) mlxbf_tmfifo(OE) micrel(E) mlxbf_bootctl(OE) virtio_ring(E) virtio(E) ipmi_devintf(E) ipmi_msghandler(E)
  [last unloaded: mst_pci]
 CPU: 11 PID: 20913 Comm: rte-worker-11 Kdump: loaded Tainted: G           OE K   5.10.134-13.1.an8.aarch64 #1
 Hardware name: https://www.mellanox.com BlueField-3 SmartNIC Main Card/BlueField-3 SmartNIC Main Card, BIOS 4.2.2.12968 Oct 26 2023
 pstate: a0400089 (NzCv daIf +PAN -UAO -TCO BTYPE=--)
 pc : dispatch_event_fd+0x68/0x300 [mlx5_ib]
 lr : devx_event_notifier+0xcc/0x228 [mlx5_ib]
 sp : ffff80001005bcf0
 x29: ffff80001005bcf0 x28: 0000000000000001
 x27: ffff244e0740a1d8 x26: ffff244e0740a1d0
 x25: ffffda56beff5ae0 x24: ffffda56bf911618
 x23: ffff244e0596a480 x22: ffff244e0596a480
 x21: ffff244d8312ad90 x20: ffff244e0596a480
 x19: fffffffffffffff0 x18: 0000000000000000
 x17: 0000000000000000 x16: ffffda56be66d620
 x15: 0000000000000000 x14: 0000000000000000
 x13: 0000000000000000 x12: 0000000000000000
 x11: 0000000000000040 x10: ffffda56bfcafb50
 x9 : ffffda5655c25f2c x8 : 0000000000000010
 x7 : 0000000000000000 x6 : ffff24545a2e24b8
 x5 : 0000000000000003 x4 : ffff80001005bd28
 x3 : 0000000000000000 x2 : 0000000000000000
 x1 : ffff244e0596a480 x0 : ffff244d8312ad90
 Call trace:
  dispatch_event_fd+0x68/0x300 [mlx5_ib]
  devx_event_notifier+0xcc/0x228 [mlx5_ib]
  atomic_notifier_call_chain+0x58/0x80
  mlx5_eq_async_int+0x148/0x2b0 [mlx5_core]
  atomic_notifier_call_chain+0x58/0x80
  irq_int_handler+0x20/0x30 [mlx5_core]
  __handle_irq_event_percpu+0x60/0x220
  handle_irq_event_percpu+0x3c/0x90
  handle_irq_event+0x58/0x158
  handle_fasteoi_irq+0xfc/0x188
  generic_handle_irq+0x34/0x48
  ...

Fixes: 7597385371 ("IB/mlx5: Enable subscription for device events over DEVX")
Link: https://patch.msgid.link/r/3ce7f20e0d1a03dc7de6e57494ec4b8eaf1f05c2.1750147949.git.leon@kernel.org
Signed-off-by: Mark Zhang <markzhang@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-07-17 18:24:56 +02:00
David Thompson
7121f483bd platform/mellanox: mlxbf-tmfifo: fix vring_desc.len assignment
[ Upstream commit 109f4d29dade8ae5b4ac6325af9d1bc24b4230f8 ]

Fix warnings reported by sparse, related to incorrect type:
drivers/platform/mellanox/mlxbf-tmfifo.c:284:38: warning: incorrect type in assignment (different base types)
drivers/platform/mellanox/mlxbf-tmfifo.c:284:38:    expected restricted __virtio32 [usertype] len
drivers/platform/mellanox/mlxbf-tmfifo.c:284:38:    got unsigned long

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202404040339.S7CUIgf3-lkp@intel.com/
Fixes: 78034cbece79 ("platform/mellanox: mlxbf-tmfifo: Drop the Rx packet if no more descriptors")
Signed-off-by: David Thompson <davthompson@nvidia.com>
Link: https://lore.kernel.org/r/20250613214608.2250130-1-davthompson@nvidia.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-07-17 18:24:56 +02:00
Masami Hiramatsu (Google)
35fcc9ea84 mtk-sd: Fix a pagefault in dma_unmap_sg() for not prepared data
commit 539d80575b810c7a5987c7ac8915e3bc99c03695 upstream.

When swiotlb buffer is full, the dma_map_sg() returns 0 to
msdc_prepare_data(), but it does not check it and sets the
MSDC_PREPARE_FLAG.

swiotlb_tbl_map_single() /* prints "swiotlb buffer is full" */
  <-swiotlb_map()
    <-dma_direct_map_page()
      <-dma_direct_map_sg()
        <-__dma_map_sg_attrs()
          <-dma_map_sg_attrs()
            <-dma_map_sg()  /* returns 0 (pages mapped) */
              <-msdc_prepare_data()

Then, the msdc_unprepare_data() checks MSDC_PREPARE_FLAG and calls
dma_unmap_sg() with unmapped pages. It causes a page fault.

To fix this problem, Do not set MSDC_PREPARE_FLAG if dma_map_sg()
fails because this is not prepared.

Fixes: 208489032b ("mmc: mediatek: Add Mediatek MMC driver")
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Tested-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/174908565814.4056588.769599127120955383.stgit@mhiramat.tok.corp.google.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-17 18:24:56 +02:00
RD Babiera
c93bc95978 usb: typec: altmodes/displayport: do not index invalid pin_assignments
commit af4db5a35a4ef7a68046883bfd12468007db38f1 upstream.

A poorly implemented DisplayPort Alt Mode port partner can indicate
that its pin assignment capabilities are greater than the maximum
value, DP_PIN_ASSIGN_F. In this case, calls to pin_assignment_show
will cause a BRK exception due to an out of bounds array access.

Prevent for loop in pin_assignment_show from accessing
invalid values in pin_assignments by adding DP_PIN_ASSIGN_MAX
value in typec_dp.h and using i < DP_PIN_ASSIGN_MAX as a loop
condition.

Fixes: 0e3bb7d689 ("usb: typec: Add driver for DisplayPort alternate mode")
Cc: stable <stable@kernel.org>
Signed-off-by: RD Babiera <rdbabiera@google.com>
Reviewed-by: Badhri Jagan Sridharan <badhri@google.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20250618224943.3263103-2-rdbabiera@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-17 18:24:55 +02:00
Ulf Hansson
e7e914942b Revert "mmc: sdhci: Disable SD card clock before changing parameters"
commit dcc3bcfc5b50c625b475dcc25d167b6b947a6637 upstream.

It has turned out the trying to strictly conform to the SDHCI specification
is causing problems. Let's revert and start over.

This reverts commit fb3bbc46c94f261b6156ee863c1b06c84cf157dc.

Cc: Erick Shepherd <erick.shepherd@ni.com>
Cc: stable@vger.kernel.org
Fixes: fb3bbc46c94f ("mmc: sdhci: Disable SD card clock before changing parameters")
Suggested-by: Adrian Hunter <adrian.hunter@intel.com>
Reported-by: Jonathan Liu <net147@gmail.com>
Reported-by: Salvatore Bonaccorso <carnil@debian.org>
Closes: https://bugs.debian.org/1108065
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://lore.kernel.org/r/20250624110932.176925-1-ulf.hansson@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-17 18:24:55 +02:00
Victor Shih
8e56691a97 mmc: sdhci: Add a helper function for dump register in dynamic debug mode
commit 2881ba9af073faa8ee7408a8d1e0575e50eb3f6c upstream.

Add a helper function for dump register in dynamic debug mode.

Signed-off-by: Victor Shih <victor.shih@genesyslogic.com.tw>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20250606110121.96314-3-victorshihgli@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-17 18:24:55 +02:00
HarshaVardhana S A
19c2cc01ff vsock/vmci: Clear the vmci transport packet properly when initializing it
commit 223e2288f4b8c262a864e2c03964ffac91744cd5 upstream.

In vmci_transport_packet_init memset the vmci_transport_packet before
populating the fields to avoid any uninitialised data being left in the
structure.

Cc: Bryan Tan <bryan-bt.tan@broadcom.com>
Cc: Vishnu Dasa <vishnu.dasa@broadcom.com>
Cc: Broadcom internal kernel review list
Cc: Stefano Garzarella <sgarzare@redhat.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: Simon Horman <horms@kernel.org>
Cc: virtualization@lists.linux.dev
Cc: netdev@vger.kernel.org
Cc: stable <stable@kernel.org>
Signed-off-by: HarshaVardhana S A <harshavardhana.sa@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fixes: d021c34405 ("VSOCK: Introduce VM Sockets")
Acked-by: Stefano Garzarella <sgarzare@redhat.com>
Link: https://patch.msgid.link/20250701122254.2397440-1-gregkh@linuxfoundation.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-17 18:24:55 +02:00
Omar Sandoval
c069415640 btrfs: don't abort filesystem when attempting to snapshot deleted subvolume
commit 7081929ab2572920e94d70be3d332e5c9f97095a upstream.

If the source file descriptor to the snapshot ioctl refers to a deleted
subvolume, we get the following abort:

  BTRFS: Transaction aborted (error -2)
  WARNING: CPU: 0 PID: 833 at fs/btrfs/transaction.c:1875 create_pending_snapshot+0x1040/0x1190 [btrfs]
  Modules linked in: pata_acpi btrfs ata_piix libata scsi_mod virtio_net blake2b_generic xor net_failover virtio_rng failover scsi_common rng_core raid6_pq libcrc32c
  CPU: 0 PID: 833 Comm: t_snapshot_dele Not tainted 6.7.0-rc6 #2
  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-1.fc39 04/01/2014
  RIP: 0010:create_pending_snapshot+0x1040/0x1190 [btrfs]
  RSP: 0018:ffffa09c01337af8 EFLAGS: 00010282
  RAX: 0000000000000000 RBX: ffff9982053e7c78 RCX: 0000000000000027
  RDX: ffff99827dc20848 RSI: 0000000000000001 RDI: ffff99827dc20840
  RBP: ffffa09c01337c00 R08: 0000000000000000 R09: ffffa09c01337998
  R10: 0000000000000003 R11: ffffffffb96da248 R12: fffffffffffffffe
  R13: ffff99820535bb28 R14: ffff99820b7bd000 R15: ffff99820381ea80
  FS:  00007fe20aadabc0(0000) GS:ffff99827dc00000(0000) knlGS:0000000000000000
  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  CR2: 0000559a120b502f CR3: 00000000055b6000 CR4: 00000000000006f0
  Call Trace:
   <TASK>
   ? create_pending_snapshot+0x1040/0x1190 [btrfs]
   ? __warn+0x81/0x130
   ? create_pending_snapshot+0x1040/0x1190 [btrfs]
   ? report_bug+0x171/0x1a0
   ? handle_bug+0x3a/0x70
   ? exc_invalid_op+0x17/0x70
   ? asm_exc_invalid_op+0x1a/0x20
   ? create_pending_snapshot+0x1040/0x1190 [btrfs]
   ? create_pending_snapshot+0x1040/0x1190 [btrfs]
   create_pending_snapshots+0x92/0xc0 [btrfs]
   btrfs_commit_transaction+0x66b/0xf40 [btrfs]
   btrfs_mksubvol+0x301/0x4d0 [btrfs]
   btrfs_mksnapshot+0x80/0xb0 [btrfs]
   __btrfs_ioctl_snap_create+0x1c2/0x1d0 [btrfs]
   btrfs_ioctl_snap_create_v2+0xc4/0x150 [btrfs]
   btrfs_ioctl+0x8a6/0x2650 [btrfs]
   ? kmem_cache_free+0x22/0x340
   ? do_sys_openat2+0x97/0xe0
   __x64_sys_ioctl+0x97/0xd0
   do_syscall_64+0x46/0xf0
   entry_SYSCALL_64_after_hwframe+0x6e/0x76
  RIP: 0033:0x7fe20abe83af
  RSP: 002b:00007ffe6eff1360 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
  RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fe20abe83af
  RDX: 00007ffe6eff23c0 RSI: 0000000050009417 RDI: 0000000000000003
  RBP: 0000000000000003 R08: 0000000000000000 R09: 00007fe20ad16cd0
  R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
  R13: 00007ffe6eff13c0 R14: 00007fe20ad45000 R15: 0000559a120b6d58
   </TASK>
  ---[ end trace 0000000000000000 ]---
  BTRFS: error (device vdc: state A) in create_pending_snapshot:1875: errno=-2 No such entry
  BTRFS info (device vdc: state EA): forced readonly
  BTRFS warning (device vdc: state EA): Skipping commit of aborted transaction.
  BTRFS: error (device vdc: state EA) in cleanup_transaction:2055: errno=-2 No such entry

This happens because create_pending_snapshot() initializes the new root
item as a copy of the source root item. This includes the refs field,
which is 0 for a deleted subvolume. The call to btrfs_insert_root()
therefore inserts a root with refs == 0. btrfs_get_new_fs_root() then
finds the root and returns -ENOENT if refs == 0, which causes
create_pending_snapshot() to abort.

Fix it by checking the source root's refs before attempting the
snapshot, but after locking subvol_sem to avoid racing with deletion.

CC: stable@vger.kernel.org # 4.14+
Reviewed-by: Sweet Tea Dorminy <sweettea-kernel@dorminy.me>
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: Omar Sandoval <osandov@fb.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
[ Larry: backport to 5.4.y. Minor conflict resolved due to missing commit 92a7cc425223
  btrfs: rename BTRFS_ROOT_REF_COWS to BTRFS_ROOT_SHAREABLE ]
Signed-off-by: Larry Bassel <larry.bassel@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-17 18:24:55 +02:00
Dev Jain
a7ae98c219 arm64: Restrict pagetable teardown to avoid false warning
commit 650768c512faba8070bf4cfbb28c95eb5cd203f3 upstream.

Commit 9c006972c3 ("arm64: mmu: drop pXd_present() checks from
pXd_free_pYd_table()") removes the pxd_present() checks because the
caller checks pxd_present(). But, in case of vmap_try_huge_pud(), the
caller only checks pud_present(); pud_free_pmd_page() recurses on each
pmd through pmd_free_pte_page(), wherein the pmd may be none. Thus it is
possible to hit a warning in the latter, since pmd_none => !pmd_table().
Thus, add a pmd_present() check in pud_free_pmd_page().

This problem was found by code inspection.

Fixes: 9c006972c3 ("arm64: mmu: drop pXd_present() checks from pXd_free_pYd_table()")
Cc: stable@vger.kernel.org
Reported-by: Ryan Roberts <ryan.roberts@arm.com>
Acked-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Dev Jain <dev.jain@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Reviewed-by: Ryan Roberts <ryan.roberts@arm.com>
Link: https://lore.kernel.org/r/20250527082633.61073-1-dev.jain@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-17 18:24:55 +02:00
Nathan Chancellor
88e47ded17 s390: Add '-std=gnu11' to decompressor and purgatory CFLAGS
commit 3b8b80e993766dc96d1a1c01c62f5d15fafc79b9 upstream.

GCC changed the default C standard dialect from gnu17 to gnu23,
which should not have impacted the kernel because it explicitly requests
the gnu11 standard in the main Makefile. However, there are certain
places in the s390 code that use their own CFLAGS without a '-std='
value, which break with this dialect change because of the kernel's own
definitions of bool, false, and true conflicting with the C23 reserved
keywords.

  include/linux/stddef.h:11:9: error: cannot use keyword 'false' as enumeration constant
     11 |         false   = 0,
        |         ^~~~~
  include/linux/stddef.h:11:9: note: 'false' is a keyword with '-std=c23' onwards
  include/linux/types.h:35:33: error: 'bool' cannot be defined via 'typedef'
     35 | typedef _Bool                   bool;
        |                                 ^~~~
  include/linux/types.h:35:33: note: 'bool' is a keyword with '-std=c23' onwards

Add '-std=gnu11' to the decompressor and purgatory CFLAGS to eliminate
these errors and make the C standard version of these areas match the
rest of the kernel.

Cc: stable@vger.kernel.org
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Tested-by: Heiko Carstens <hca@linux.ibm.com>
Link: https://lore.kernel.org/r/20250122-s390-fix-std-for-gcc-15-v1-1-8b00cadee083@kernel.org
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-17 18:24:55 +02:00
Aradhya Bhatia
c1a4677f7c drm/bridge: cdns-dsi: Check return value when getting default PHY config
commit c6a7ef0d4856b9629df390e9935d7fd67fe39f81 upstream.

Check for the return value of the phy_mipi_dphy_get_default_config()
call, and in case of an error, return back the same.

Fixes: fced5a364d ("drm/bridge: cdns: Convert to phy framework")
Cc: stable@vger.kernel.org
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Aradhya Bhatia <a-bhatia1@ti.com>
Signed-off-by: Aradhya Bhatia <aradhya.bhatia@linux.dev>
Link: https://lore.kernel.org/r/20250329113925.68204-5-aradhya.bhatia@linux.dev
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-17 18:24:55 +02:00
Aradhya Bhatia
7aa42abc8d drm/bridge: cdns-dsi: Fix connecting to next bridge
commit 688eb4d465484bc2a3471a6a6f06f833b58c7867 upstream.

Fix the OF node pointer passed to the of_drm_find_bridge() call to find
the next bridge in the display chain.

The code to find the next panel (and create its panel-bridge) works
fine, but to find the next (non-panel) bridge does not.

To find the next bridge in the pipeline, we need to pass "np" - the OF
node pointer of the next entity in the devicetree chain. Passing
"of_node" to of_drm_find_bridge (which is what the code does currently)
will fetch the bridge for the cdns-dsi which is not what's required.

Fix that.

Fixes: e19233955d ("drm/bridge: Add Cadence DSI driver")
Cc: stable@vger.kernel.org
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Aradhya Bhatia <a-bhatia1@ti.com>
Signed-off-by: Aradhya Bhatia <aradhya.bhatia@linux.dev>
Link: https://lore.kernel.org/r/20250329113925.68204-2-aradhya.bhatia@linux.dev
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-17 18:24:55 +02:00
Aradhya Bhatia
0ad3721400 drm/bridge: cdns-dsi: Fix the clock variable for mode_valid()
commit 132bdcec399be6ae947582249a134b38cf56731c upstream.

The crtc_* mode parameters do not get generated (duplicated in this
case) from the regular parameters before the mode validation phase
begins.

The rest of the code conditionally uses the crtc_* parameters only
during the bridge enable phase, but sticks to the regular parameters
for mode validation. In this singular instance, however, the driver
tries to use the crtc_clock parameter even during the mode validation,
causing the validation to fail.

Allow the D-Phy config checks to use mode->clock instead of
mode->crtc_clock during mode_valid checks, like everywhere else in the
driver.

Fixes: fced5a364d ("drm/bridge: cdns: Convert to phy framework")
Cc: stable@vger.kernel.org
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Aradhya Bhatia <a-bhatia1@ti.com>
Signed-off-by: Aradhya Bhatia <aradhya.bhatia@linux.dev>
Link: https://lore.kernel.org/r/20250329113925.68204-4-aradhya.bhatia@linux.dev
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-17 18:24:54 +02:00
Thierry Reding
e52589c016 drm/tegra: Assign plane type before registration
commit 9ff4fdf4f44b69237c0afc1d3a8dac916ce66f3e upstream.

Changes to a plane's type after it has been registered aren't propagated
to userspace automatically. This could possibly be achieved by updating
the property, but since we can already determine which type this should
be before the registration, passing in the right type from the start is
a much better solution.

Suggested-by: Aaron Kling <webgeek1234@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Cc: stable@vger.kernel.org
Fixes: 473079549f ("drm/tegra: dc: Add Tegra186 support")
Signed-off-by: Aaron Kling <webgeek1234@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20250421-tegra-drm-primary-v2-1-7f740c4c2121@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-17 18:24:54 +02:00
Qasim Ijaz
57b0ad4f5c HID: wacom: fix kobject reference count leak
commit 85a720f4337f0ddf1603c8b75a8f1ffbbe022ef9 upstream.

When sysfs_create_files() fails in wacom_initialize_remotes() the error
is returned and the cleanup action will not have been registered yet.

As a result the kobject???s refcount is never dropped, so the
kobject can never be freed leading to a reference leak.

Fix this by calling kobject_put() before returning.

Fixes: 83e6b40e2d ("HID: wacom: EKR: have the wacom resources dynamically allocated")
Acked-by: Ping Cheng <ping.cheng@wacom.com>
Cc: stable@vger.kernel.org
Signed-off-by: Qasim Ijaz <qasdev00@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-17 18:24:54 +02:00
Qasim Ijaz
ee49c0e99a HID: wacom: fix memory leak on sysfs attribute creation failure
commit 1a19ae437ca5d5c7d9ec2678946fb339b1c706bf upstream.

When sysfs_create_files() fails during wacom_initialize_remotes() the
fifo buffer is not freed leading to a memory leak.

Fix this by calling kfifo_free() before returning.

Fixes: 83e6b40e2d ("HID: wacom: EKR: have the wacom resources dynamically allocated")
Reviewed-by: Ping Cheng <ping.cheng@wacom.com>
Cc: stable@vger.kernel.org
Signed-off-by: Qasim Ijaz <qasdev00@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-17 18:24:54 +02:00
Qasim Ijaz
e0d646954b HID: wacom: fix memory leak on kobject creation failure
commit 5ae416c5b1e2e816aee7b3fc8347adf70afabb4c upstream.

During wacom_initialize_remotes() a fifo buffer is allocated
with kfifo_alloc() and later a cleanup action is registered
during devm_add_action_or_reset() to clean it up.

However if the code fails to create a kobject and register it
with sysfs the code simply returns -ENOMEM before the cleanup
action is registered leading to a memory leak.

Fix this by ensuring the fifo is freed when the kobject creation
and registration process fails.

Fixes: 83e6b40e2d ("HID: wacom: EKR: have the wacom resources dynamically allocated")
Reviewed-by: Ping Cheng <ping.cheng@wacom.com>
Cc: stable@vger.kernel.org
Signed-off-by: Qasim Ijaz <qasdev00@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-17 18:24:54 +02:00
Heinz Mauelshagen
a30260dcf2 dm-raid: fix variable in journal device check
commit db53805156f1e0aa6d059c0d3f9ac660d4ef3eb4 upstream.

Replace "rdev" with correct loop variable name "r".

Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com>
Cc: stable@vger.kernel.org
Fixes: 63c32ed4af ("dm raid: add raid4/5/6 journaling support")
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-17 18:24:54 +02:00
Frédéric Danis
397df6d957 Bluetooth: L2CAP: Fix L2CAP MTU negotiation
commit 042bb9603c44620dce98717a2d23235ca57a00d7 upstream.

OBEX download from iPhone is currently slow due to small packet size
used to transfer data which doesn't follow the MTU negotiated during
L2CAP connection, i.e. 672 bytes instead of 32767:

  < ACL Data TX: Handle 11 flags 0x00 dlen 12
      L2CAP: Connection Request (0x02) ident 18 len 4
        PSM: 4103 (0x1007)
        Source CID: 72
  > ACL Data RX: Handle 11 flags 0x02 dlen 16
      L2CAP: Connection Response (0x03) ident 18 len 8
        Destination CID: 14608
        Source CID: 72
        Result: Connection successful (0x0000)
        Status: No further information available (0x0000)
  < ACL Data TX: Handle 11 flags 0x00 dlen 27
      L2CAP: Configure Request (0x04) ident 20 len 19
        Destination CID: 14608
        Flags: 0x0000
        Option: Maximum Transmission Unit (0x01) [mandatory]
          MTU: 32767
        Option: Retransmission and Flow Control (0x04) [mandatory]
          Mode: Enhanced Retransmission (0x03)
          TX window size: 63
          Max transmit: 3
          Retransmission timeout: 2000
          Monitor timeout: 12000
          Maximum PDU size: 1009
  > ACL Data RX: Handle 11 flags 0x02 dlen 26
      L2CAP: Configure Request (0x04) ident 72 len 18
        Destination CID: 72
        Flags: 0x0000
        Option: Retransmission and Flow Control (0x04) [mandatory]
          Mode: Enhanced Retransmission (0x03)
          TX window size: 32
          Max transmit: 255
          Retransmission timeout: 0
          Monitor timeout: 0
          Maximum PDU size: 65527
        Option: Frame Check Sequence (0x05) [mandatory]
          FCS: 16-bit FCS (0x01)
  < ACL Data TX: Handle 11 flags 0x00 dlen 29
      L2CAP: Configure Response (0x05) ident 72 len 21
        Source CID: 14608
        Flags: 0x0000
        Result: Success (0x0000)
        Option: Maximum Transmission Unit (0x01) [mandatory]
          MTU: 672
        Option: Retransmission and Flow Control (0x04) [mandatory]
          Mode: Enhanced Retransmission (0x03)
          TX window size: 32
          Max transmit: 255
          Retransmission timeout: 2000
          Monitor timeout: 12000
          Maximum PDU size: 1009
  > ACL Data RX: Handle 11 flags 0x02 dlen 32
      L2CAP: Configure Response (0x05) ident 20 len 24
        Source CID: 72
        Flags: 0x0000
        Result: Success (0x0000)
        Option: Maximum Transmission Unit (0x01) [mandatory]
          MTU: 32767
        Option: Retransmission and Flow Control (0x04) [mandatory]
          Mode: Enhanced Retransmission (0x03)
          TX window size: 63
          Max transmit: 3
          Retransmission timeout: 2000
          Monitor timeout: 12000
          Maximum PDU size: 1009
        Option: Frame Check Sequence (0x05) [mandatory]
          FCS: 16-bit FCS (0x01)
  ...
  > ACL Data RX: Handle 11 flags 0x02 dlen 680
      Channel: 72 len 676 ctrl 0x0202 [PSM 4103 mode Enhanced Retransmission (0x03)] {chan 8}
      I-frame: Unsegmented TxSeq 1 ReqSeq 2
  < ACL Data TX: Handle 11 flags 0x00 dlen 13
      Channel: 14608 len 9 ctrl 0x0204 [PSM 4103 mode Enhanced Retransmission (0x03)] {chan 8}
      I-frame: Unsegmented TxSeq 2 ReqSeq 2
  > ACL Data RX: Handle 11 flags 0x02 dlen 680
      Channel: 72 len 676 ctrl 0x0304 [PSM 4103 mode Enhanced Retransmission (0x03)] {chan 8}
      I-frame: Unsegmented TxSeq 2 ReqSeq 3

The MTUs are negotiated for each direction. In this traces 32767 for
iPhone->localhost and no MTU for localhost->iPhone, which based on
'4.4 L2CAP_CONFIGURATION_REQ' (Core specification v5.4, Vol. 3, Part
A):

  The only parameters that should be included in the
  L2CAP_CONFIGURATION_REQ packet are those that require different
  values than the default or previously agreed values.
  ...
  Any missing configuration parameters are assumed to have their
  most recently explicitly or implicitly accepted values.

and '5.1 Maximum transmission unit (MTU)':

  If the remote device sends a positive L2CAP_CONFIGURATION_RSP
  packet it should include the actual MTU to be used on this channel
  for traffic flowing into the local device.
  ...
  The default value is 672 octets.

is set by BlueZ to 672 bytes.

It seems that the iPhone used the lowest negotiated value to transfer
data to the localhost instead of the negotiated one for the incoming
direction.

This could be fixed by using the MTU negotiated for the other
direction, if exists, in the L2CAP_CONFIGURATION_RSP.
This allows to use segmented packets as in the following traces:

  < ACL Data TX: Handle 11 flags 0x00 dlen 12
        L2CAP: Connection Request (0x02) ident 22 len 4
          PSM: 4103 (0x1007)
          Source CID: 72
  < ACL Data TX: Handle 11 flags 0x00 dlen 27
        L2CAP: Configure Request (0x04) ident 24 len 19
          Destination CID: 2832
          Flags: 0x0000
          Option: Maximum Transmission Unit (0x01) [mandatory]
            MTU: 32767
          Option: Retransmission and Flow Control (0x04) [mandatory]
            Mode: Enhanced Retransmission (0x03)
            TX window size: 63
            Max transmit: 3
            Retransmission timeout: 2000
            Monitor timeout: 12000
            Maximum PDU size: 1009
  > ACL Data RX: Handle 11 flags 0x02 dlen 26
        L2CAP: Configure Request (0x04) ident 15 len 18
          Destination CID: 72
          Flags: 0x0000
          Option: Retransmission and Flow Control (0x04) [mandatory]
            Mode: Enhanced Retransmission (0x03)
            TX window size: 32
            Max transmit: 255
            Retransmission timeout: 0
            Monitor timeout: 0
            Maximum PDU size: 65527
          Option: Frame Check Sequence (0x05) [mandatory]
            FCS: 16-bit FCS (0x01)
  < ACL Data TX: Handle 11 flags 0x00 dlen 29
        L2CAP: Configure Response (0x05) ident 15 len 21
          Source CID: 2832
          Flags: 0x0000
          Result: Success (0x0000)
          Option: Maximum Transmission Unit (0x01) [mandatory]
            MTU: 32767
          Option: Retransmission and Flow Control (0x04) [mandatory]
            Mode: Enhanced Retransmission (0x03)
            TX window size: 32
            Max transmit: 255
            Retransmission timeout: 2000
            Monitor timeout: 12000
            Maximum PDU size: 1009
  > ACL Data RX: Handle 11 flags 0x02 dlen 32
        L2CAP: Configure Response (0x05) ident 24 len 24
          Source CID: 72
          Flags: 0x0000
          Result: Success (0x0000)
          Option: Maximum Transmission Unit (0x01) [mandatory]
            MTU: 32767
          Option: Retransmission and Flow Control (0x04) [mandatory]
            Mode: Enhanced Retransmission (0x03)
            TX window size: 63
            Max transmit: 3
            Retransmission timeout: 2000
            Monitor timeout: 12000
            Maximum PDU size: 1009
          Option: Frame Check Sequence (0x05) [mandatory]
            FCS: 16-bit FCS (0x01)
  ...
  > ACL Data RX: Handle 11 flags 0x02 dlen 1009
        Channel: 72 len 1005 ctrl 0x4202 [PSM 4103 mode Enhanced Retransmission (0x03)] {chan 8}
        I-frame: Start (len 21884) TxSeq 1 ReqSeq 2
  > ACL Data RX: Handle 11 flags 0x02 dlen 1009
        Channel: 72 len 1005 ctrl 0xc204 [PSM 4103 mode Enhanced Retransmission (0x03)] {chan 8}
        I-frame: Continuation TxSeq 2 ReqSeq 2

This has been tested with kernel 5.4 and BlueZ 5.77.

Cc: stable@vger.kernel.org
Signed-off-by: Frédéric Danis <frederic.danis@collabora.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-17 18:24:54 +02:00
Kuniyuki Iwashima
2a8dcee649 atm: Release atm_dev_mutex after removing procfs in atm_dev_deregister().
[ Upstream commit a433791aeaea6e84df709e0b9584b9bbe040cd1c ]

syzbot reported a warning below during atm_dev_register(). [0]

Before creating a new device and procfs/sysfs for it, atm_dev_register()
looks up a duplicated device by __atm_dev_lookup().  These operations are
done under atm_dev_mutex.

However, when removing a device in atm_dev_deregister(), it releases the
mutex just after removing the device from the list that __atm_dev_lookup()
iterates over.

So, there will be a small race window where the device does not exist on
the device list but procfs/sysfs are still not removed, triggering the
splat.

Let's hold the mutex until procfs/sysfs are removed in
atm_dev_deregister().

[0]:
proc_dir_entry 'atm/atmtcp:0' already registered
WARNING: CPU: 0 PID: 5919 at fs/proc/generic.c:377 proc_register+0x455/0x5f0 fs/proc/generic.c:377
Modules linked in:
CPU: 0 UID: 0 PID: 5919 Comm: syz-executor284 Not tainted 6.16.0-rc2-syzkaller-00047-g52da431bf03b #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:proc_register+0x455/0x5f0 fs/proc/generic.c:377
Code: 48 89 f9 48 c1 e9 03 80 3c 01 00 0f 85 a2 01 00 00 48 8b 44 24 10 48 c7 c7 20 c0 c2 8b 48 8b b0 d8 00 00 00 e8 0c 02 1c ff 90 <0f> 0b 90 90 48 c7 c7 80 f2 82 8e e8 0b de 23 09 48 8b 4c 24 28 48
RSP: 0018:ffffc9000466fa30 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff817ae248
RDX: ffff888026280000 RSI: ffffffff817ae255 RDI: 0000000000000001
RBP: ffff8880232bed48 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff888076ed2140
R13: dffffc0000000000 R14: ffff888078a61340 R15: ffffed100edda444
FS:  00007f38b3b0c6c0(0000) GS:ffff888124753000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f38b3bdf953 CR3: 0000000076d58000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 proc_create_data+0xbe/0x110 fs/proc/generic.c:585
 atm_proc_dev_register+0x112/0x1e0 net/atm/proc.c:361
 atm_dev_register+0x46d/0x890 net/atm/resources.c:113
 atmtcp_create+0x77/0x210 drivers/atm/atmtcp.c:369
 atmtcp_attach drivers/atm/atmtcp.c:403 [inline]
 atmtcp_ioctl+0x2f9/0xd60 drivers/atm/atmtcp.c:464
 do_vcc_ioctl+0x12c/0x930 net/atm/ioctl.c:159
 sock_do_ioctl+0x115/0x280 net/socket.c:1190
 sock_ioctl+0x227/0x6b0 net/socket.c:1311
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:907 [inline]
 __se_sys_ioctl fs/ioctl.c:893 [inline]
 __x64_sys_ioctl+0x18b/0x210 fs/ioctl.c:893
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f38b3b74459
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f38b3b0c198 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f38b3bfe318 RCX: 00007f38b3b74459
RDX: 0000000000000000 RSI: 0000000000006180 RDI: 0000000000000005
RBP: 00007f38b3bfe310 R08: 65732f636f72702f R09: 65732f636f72702f
R10: 65732f636f72702f R11: 0000000000000246 R12: 00007f38b3bcb0ac
R13: 00007f38b3b0c1a0 R14: 0000200000000200 R15: 00007f38b3bcb03b
 </TASK>

Fixes: 64bf69ddff ("[ATM]: deregistration removes device from atm_devs list immediately")
Reported-by: syzbot+8bd335d2ad3b93e80715@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/netdev/685316de.050a0220.216029.0087.GAE@google.com/
Tested-by: syzbot+8bd335d2ad3b93e80715@syzkaller.appspotmail.com
Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20250624214505.570679-1-kuni1840@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-07-17 18:24:54 +02:00
Simon Horman
a434395b00 net: enetc: Correct endianness handling in _enetc_rd_reg64
[ Upstream commit 7b515f35a911fdc31fbde6531828dcd6ae9803d3 ]

enetc_hw.h provides two versions of _enetc_rd_reg64.
One which simply calls ioread64() when available.
And another that composes the 64-bit result from ioread32() calls.

In the second case the code appears to assume that each ioread32() call
returns a little-endian value. However both the shift and logical or
used to compose the return value would not work correctly on big endian
systems if this were the case. Moreover, this is inconsistent with the
first case where the return value of ioread64() is assumed to be in host
byte order.

It appears that the correct approach is for both versions to treat the
return value of ioread*() functions as being in host byte order. And
this patch corrects the ioread32()-based version to do so.

This is a bug but would only manifest on big endian systems
that make use of the ioread32-based implementation of _enetc_rd_reg64.
While all in-tree users of this driver are little endian and
make use of the ioread64-based implementation of _enetc_rd_reg64.
Thus, no in-tree user of this driver is affected by this bug.

Flagged by Sparse.
Compile tested only.

Fixes: 16eb4c85c9 ("enetc: Add ethtool statistics")
Closes: https://lore.kernel.org/all/AM9PR04MB850500D3FC24FE23DEFCEA158879A@AM9PR04MB8505.eurprd04.prod.outlook.com/
Signed-off-by: Simon Horman <horms@kernel.org>
Reviewed-by: Wei Fang <wei.fang@nxp.com>
Link: https://patch.msgid.link/20250624-etnetc-le-v1-1-a73a95d96e4e@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-07-17 18:24:53 +02:00
Tiwei Bie
a304adc2c7 um: ubd: Add missing error check in start_io_thread()
[ Upstream commit c55c7a85e02a7bfee20a3ffebdff7cbeb41613ef ]

The subsequent call to os_set_fd_block() overwrites the previous
return value. OR the two return values together to fix it.

Fixes: f88f0bdfc3 ("um: UBD Improvements")
Signed-off-by: Tiwei Bie <tiwei.btw@antgroup.com>
Link: https://patch.msgid.link/20250606124428.148164-2-tiwei.btw@antgroup.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-07-17 18:24:53 +02:00
Stefano Garzarella
04ec06adf8 vsock/uapi: fix linux/vm_sockets.h userspace compilation errors
[ Upstream commit 22bbc1dcd0d6785fb390c41f0dd5b5e218d23bdd ]

If a userspace application just include <linux/vm_sockets.h> will fail
to build with the following errors:

    /usr/include/linux/vm_sockets.h:182:39: error: invalid application of ‘sizeof’ to incomplete type ‘struct sockaddr’
      182 |         unsigned char svm_zero[sizeof(struct sockaddr) -
          |                                       ^~~~~~
    /usr/include/linux/vm_sockets.h:183:39: error: ‘sa_family_t’ undeclared here (not in a function)
      183 |                                sizeof(sa_family_t) -
          |

Include <sys/socket.h> for userspace (guarded by ifndef __KERNEL__)
where `struct sockaddr` and `sa_family_t` are defined.
We already do something similar in <linux/mptcp.h> and <linux/if.h>.

Fixes: d021c34405 ("VSOCK: Introduce VM Sockets")
Reported-by: Daan De Meyer <daan.j.demeyer@gmail.com>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Link: https://patch.msgid.link/20250623100053.40979-1-sgarzare@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-07-17 18:24:53 +02:00
Lachlan Hodges
14f42b7be2 wifi: mac80211: fix beacon interval calculation overflow
[ Upstream commit 7a3750ff0f2e8fee338a9c168f429f6c37f0e820 ]

As we are converting from TU to usecs, a beacon interval of
100*1024 usecs will lead to integer wrapping. To fix change
to use a u32.

Fixes: 057d5f4ba1 ("mac80211: sync dtim_count to TSF")
Signed-off-by: Lachlan Hodges <lachlan.hodges@morsemicro.com>
Link: https://patch.msgid.link/20250621123209.511796-1-lachlan.hodges@morsemicro.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-07-17 18:24:53 +02:00
Al Viro
5925f9f229 attach_recursive_mnt(): do not lock the covering tree when sliding something under it
[ Upstream commit ce7df19686530920f2f6b636e71ce5eb1d9303ef ]

If we are propagating across the userns boundary, we need to lock the
mounts added there.  However, in case when something has already
been mounted there and we end up sliding a new tree under that,
the stuff that had been there before should not get locked.

IOW, lock_mnt_tree() should be called before we reparent the
preexisting tree on top of what we are adding.

Fixes: 3bd045cc9c ("separate copying and locking mount tree on cross-userns copies")
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-07-17 18:24:53 +02:00
Youngjun Lee
24ff7d465c ALSA: usb-audio: Fix out-of-bounds read in snd_usb_get_audioformat_uac3()
[ Upstream commit fb4e2a6e8f28a3c0ad382e363aeb9cd822007b8a ]

In snd_usb_get_audioformat_uac3(), the length value returned from
snd_usb_ctl_msg() is used directly for memory allocation without
validation. This length is controlled by the USB device.

The allocated buffer is cast to a uac3_cluster_header_descriptor
and its fields are accessed without verifying that the buffer
is large enough. If the device returns a smaller than expected
length, this leads to an out-of-bounds read.

Add a length check to ensure the buffer is large enough for
uac3_cluster_header_descriptor.

Signed-off-by: Youngjun Lee <yjjuny.lee@samsung.com>
Fixes: 9a2fe9b801 ("ALSA: usb: initial USB Audio Device Class 3.0 support")
Link: https://patch.msgid.link/20250623-uac3-oob-fix-v1-1-527303eaf40a@samsung.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-07-17 18:24:53 +02:00
Wolfram Sang
585be561e5 i2c: robotfuzz-osif: disable zero-length read messages
commit 56ad91c1aa9c18064348edf69308080b03c9dc48 upstream.

This driver passes the length of an i2c_msg directly to
usb_control_msg(). If the message is now a read and of length 0, it
violates the USB protocol and a warning will be printed. Enable the
I2C_AQ_NO_ZERO_LEN_READ quirk for this adapter thus forbidding 0-length
read messages altogether.

Fixes: 83e53a8f12 ("i2c: Add bus driver for for OSIF USB i2c device.")
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Cc: <stable@vger.kernel.org> # v3.14+
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/20250522064234.3721-2-wsa+renesas@sang-engineering.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-17 18:24:53 +02:00
Wolfram Sang
e34167aee4 i2c: tiny-usb: disable zero-length read messages
commit cbdb25ccf7566eee0c2b945e35cb98baf9ed0aa6 upstream.

This driver passes the length of an i2c_msg directly to
usb_control_msg(). If the message is now a read and of length 0, it
violates the USB protocol and a warning will be printed. Enable the
I2C_AQ_NO_ZERO_LEN_READ quirk for this adapter thus forbidding 0-length
read messages altogether.

Fixes: e8c76eed2e ("i2c: New i2c-tiny-usb bus driver")
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Cc: <stable@vger.kernel.org> # v2.6.22+
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/20250522064349.3823-2-wsa+renesas@sang-engineering.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-17 18:24:53 +02:00
Shin'ichiro Kawasaki
013dcdf6f0 RDMA/iwcm: Fix use-after-free of work objects after cm_id destruction
[ Upstream commit 6883b680e703c6b2efddb4e7a8d891ce1803d06b ]

The commit 59c68ac31e ("iw_cm: free cm_id resources on the last
deref") simplified cm_id resource management by freeing cm_id once all
references to the cm_id were removed. The references are removed either
upon completion of iw_cm event handlers or when the application destroys
the cm_id. This commit introduced the use-after-free condition where
cm_id_private object could still be in use by event handler works during
the destruction of cm_id. The commit aee2424246f9 ("RDMA/iwcm: Fix a
use-after-free related to destroying CM IDs") addressed this use-after-
free by flushing all pending works at the cm_id destruction.

However, still another use-after-free possibility remained. It happens
with the work objects allocated for each cm_id_priv within
alloc_work_entries() during cm_id creation, and subsequently freed in
dealloc_work_entries() once all references to the cm_id are removed.
If the cm_id's last reference is decremented in the event handler work,
the work object for the work itself gets removed, and causes the use-
after-free BUG below:

  BUG: KASAN: slab-use-after-free in __pwq_activate_work+0x1ff/0x250
  Read of size 8 at addr ffff88811f9cf800 by task kworker/u16:1/147091

  CPU: 2 UID: 0 PID: 147091 Comm: kworker/u16:1 Not tainted 6.15.0-rc2+ #27 PREEMPT(voluntary)
  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-3.fc41 04/01/2014
  Workqueue:  0x0 (iw_cm_wq)
  Call Trace:
   <TASK>
   dump_stack_lvl+0x6a/0x90
   print_report+0x174/0x554
   ? __virt_addr_valid+0x208/0x430
   ? __pwq_activate_work+0x1ff/0x250
   kasan_report+0xae/0x170
   ? __pwq_activate_work+0x1ff/0x250
   __pwq_activate_work+0x1ff/0x250
   pwq_dec_nr_in_flight+0x8c5/0xfb0
   process_one_work+0xc11/0x1460
   ? __pfx_process_one_work+0x10/0x10
   ? assign_work+0x16c/0x240
   worker_thread+0x5ef/0xfd0
   ? __pfx_worker_thread+0x10/0x10
   kthread+0x3b0/0x770
   ? __pfx_kthread+0x10/0x10
   ? rcu_is_watching+0x11/0xb0
   ? _raw_spin_unlock_irq+0x24/0x50
   ? rcu_is_watching+0x11/0xb0
   ? __pfx_kthread+0x10/0x10
   ret_from_fork+0x30/0x70
   ? __pfx_kthread+0x10/0x10
   ret_from_fork_asm+0x1a/0x30
   </TASK>

  Allocated by task 147416:
   kasan_save_stack+0x2c/0x50
   kasan_save_track+0x10/0x30
   __kasan_kmalloc+0xa6/0xb0
   alloc_work_entries+0xa9/0x260 [iw_cm]
   iw_cm_connect+0x23/0x4a0 [iw_cm]
   rdma_connect_locked+0xbfd/0x1920 [rdma_cm]
   nvme_rdma_cm_handler+0x8e5/0x1b60 [nvme_rdma]
   cma_cm_event_handler+0xae/0x320 [rdma_cm]
   cma_work_handler+0x106/0x1b0 [rdma_cm]
   process_one_work+0x84f/0x1460
   worker_thread+0x5ef/0xfd0
   kthread+0x3b0/0x770
   ret_from_fork+0x30/0x70
   ret_from_fork_asm+0x1a/0x30

  Freed by task 147091:
   kasan_save_stack+0x2c/0x50
   kasan_save_track+0x10/0x30
   kasan_save_free_info+0x37/0x60
   __kasan_slab_free+0x4b/0x70
   kfree+0x13a/0x4b0
   dealloc_work_entries+0x125/0x1f0 [iw_cm]
   iwcm_deref_id+0x6f/0xa0 [iw_cm]
   cm_work_handler+0x136/0x1ba0 [iw_cm]
   process_one_work+0x84f/0x1460
   worker_thread+0x5ef/0xfd0
   kthread+0x3b0/0x770
   ret_from_fork+0x30/0x70
   ret_from_fork_asm+0x1a/0x30

  Last potentially related work creation:
   kasan_save_stack+0x2c/0x50
   kasan_record_aux_stack+0xa3/0xb0
   __queue_work+0x2ff/0x1390
   queue_work_on+0x67/0xc0
   cm_event_handler+0x46a/0x820 [iw_cm]
   siw_cm_upcall+0x330/0x650 [siw]
   siw_cm_work_handler+0x6b9/0x2b20 [siw]
   process_one_work+0x84f/0x1460
   worker_thread+0x5ef/0xfd0
   kthread+0x3b0/0x770
   ret_from_fork+0x30/0x70
   ret_from_fork_asm+0x1a/0x30

This BUG is reproducible by repeating the blktests test case nvme/061
for the rdma transport and the siw driver.

To avoid the use-after-free of cm_id_private work objects, ensure that
the last reference to the cm_id is decremented not in the event handler
works, but in the cm_id destruction context. For that purpose, move
iwcm_deref_id() call from destroy_cm_id() to the callers of
destroy_cm_id(). In iw_destroy_cm_id(), call iwcm_deref_id() after
flushing the pending works.

During the fix work, I noticed that iw_destroy_cm_id() is called from
cm_work_handler() and process_event() context. However, the comment of
iw_destroy_cm_id() notes that the function "cannot be called by the
event thread". Drop the false comment.

Closes: https://lore.kernel.org/linux-rdma/r5676e754sv35aq7cdsqrlnvyhiq5zktteaurl7vmfih35efko@z6lay7uypy3c/
Fixes: 59c68ac31e ("iw_cm: free cm_id resources on the last deref")
Cc: stable@vger.kernel.org
Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Link: https://patch.msgid.link/20250510101036.1756439-1-shinichiro.kawasaki@wdc.com
Reviewed-by: Zhu Yanjun <yanjun.zhu@linux.dev>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-07-17 18:24:53 +02:00
Weihang Li
33e120ff07 RDMA/core: Use refcount_t instead of atomic_t on refcount of iwcm_id_private
[ Upstream commit 60dff56d77292062789232f68354f567e1ccf1d2 ]

The refcount_t API will WARN on underflow and overflow of a reference
counter, and avoid use-after-free risks.

Link: https://lore.kernel.org/r/1622194663-2383-2-git-send-email-liweihang@huawei.com
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Stable-dep-of: 6883b680e703 ("RDMA/iwcm: Fix use-after-free of work objects after cm_id destruction")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-07-17 18:24:52 +02:00
Denis Arefev
57597d8db5 media: vivid: Change the siize of the composing
[ Upstream commit f83ac8d30c43fd902af7c84c480f216157b60ef0 ]

syzkaller found a bug:

BUG: KASAN: vmalloc-out-of-bounds in tpg_fill_plane_pattern drivers/media/common/v4l2-tpg/v4l2-tpg-core.c:2608 [inline]
BUG: KASAN: vmalloc-out-of-bounds in tpg_fill_plane_buffer+0x1a9c/0x5af0 drivers/media/common/v4l2-tpg/v4l2-tpg-core.c:2705
Write of size 1440 at addr ffffc9000d0ffda0 by task vivid-000-vid-c/5304

CPU: 0 UID: 0 PID: 5304 Comm: vivid-000-vid-c Not tainted 6.14.0-rc2-syzkaller-00039-g09fbf3d50205 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014

Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0x169/0x550 mm/kasan/report.c:489
 kasan_report+0x143/0x180 mm/kasan/report.c:602
 kasan_check_range+0x282/0x290 mm/kasan/generic.c:189
 __asan_memcpy+0x40/0x70 mm/kasan/shadow.c:106
 tpg_fill_plane_pattern drivers/media/common/v4l2-tpg/v4l2-tpg-core.c:2608 [inline]
 tpg_fill_plane_buffer+0x1a9c/0x5af0 drivers/media/common/v4l2-tpg/v4l2-tpg-core.c:2705
 vivid_fillbuff drivers/media/test-drivers/vivid/vivid-kthread-cap.c:470 [inline]
 vivid_thread_vid_cap_tick+0xf8e/0x60d0 drivers/media/test-drivers/vivid/vivid-kthread-cap.c:629
 vivid_thread_vid_cap+0x8aa/0xf30 drivers/media/test-drivers/vivid/vivid-kthread-cap.c:767
 kthread+0x7a9/0x920 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>

The composition size cannot be larger than the size of fmt_cap_rect.
So execute v4l2_rect_map_inside() even if has_compose_cap == 0.

Fixes: 94a7ad928346 ("media: vivid: fix compose size exceed boundary")
Cc: stable@vger.kernel.org
Reported-by: syzbot+365005005522b70a36f2@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?id=8ed8e8cc30cbe0d86c9a25bd1d6a5775129b8ea3
Signed-off-by: Denis Arefev <arefev@swemel.ru>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-07-17 18:24:52 +02:00
Marek Szyprowski
725a7c2a73 media: omap3isp: use sgtable-based scatterlist wrappers
[ Upstream commit 3de572fe2189a4a0bd80295e1f478401e739498e ]

Use common wrappers operating directly on the struct sg_table objects to
fix incorrect use of scatterlists sync calls. dma_sync_sg_for_*()
functions have to be called with the number of elements originally passed
to dma_map_sg_*() function, not the one returned in sgtable's nents.

Fixes: d33186d0be ("[media] omap3isp: ccdc: Use the DMA API for LSC")
Fixes: 0e24e90f2c ("[media] omap3isp: stat: Use the DMA API")
CC: stable@vger.kernel.org
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-07-17 18:24:52 +02:00
Edward Adam Davis
77829a5f5a media: cxusb: no longer judge rbuf when the write fails
[ Upstream commit 73fb3b92da84637e3817580fa205d48065924e15 ]

syzbot reported a uninit-value in cxusb_i2c_xfer. [1]

Only when the write operation of usb_bulk_msg() in dvb_usb_generic_rw()
succeeds and rlen is greater than 0, the read operation of usb_bulk_msg()
will be executed to read rlen bytes of data from the dvb device into the
rbuf.

In this case, although rlen is 1, the write operation failed which resulted
in the dvb read operation not being executed, and ultimately variable i was
not initialized.

[1]
BUG: KMSAN: uninit-value in cxusb_gpio_tuner drivers/media/usb/dvb-usb/cxusb.c:124 [inline]
BUG: KMSAN: uninit-value in cxusb_i2c_xfer+0x153a/0x1a60 drivers/media/usb/dvb-usb/cxusb.c:196
 cxusb_gpio_tuner drivers/media/usb/dvb-usb/cxusb.c:124 [inline]
 cxusb_i2c_xfer+0x153a/0x1a60 drivers/media/usb/dvb-usb/cxusb.c:196
 __i2c_transfer+0xe25/0x3150 drivers/i2c/i2c-core-base.c:-1
 i2c_transfer+0x317/0x4a0 drivers/i2c/i2c-core-base.c:2315
 i2c_transfer_buffer_flags+0x125/0x1e0 drivers/i2c/i2c-core-base.c:2343
 i2c_master_send include/linux/i2c.h:109 [inline]
 i2cdev_write+0x210/0x280 drivers/i2c/i2c-dev.c:183
 do_loop_readv_writev fs/read_write.c:848 [inline]
 vfs_writev+0x963/0x14e0 fs/read_write.c:1057
 do_writev+0x247/0x5c0 fs/read_write.c:1101
 __do_sys_writev fs/read_write.c:1169 [inline]
 __se_sys_writev fs/read_write.c:1166 [inline]
 __x64_sys_writev+0x98/0xe0 fs/read_write.c:1166
 x64_sys_call+0x2229/0x3c80 arch/x86/include/generated/asm/syscalls_64.h:21
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x1e0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Reported-by: syzbot+526bd95c0ec629993bf3@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=526bd95c0ec629993bf3
Tested-by: syzbot+526bd95c0ec629993bf3@syzkaller.appspotmail.com
Fixes: 22c6d93a73 ("[PATCH] dvb: usb: support Medion hybrid USB2.0 DVB-T/analogue box")
Cc: stable@vger.kernel.org
Signed-off-by: Edward Adam Davis <eadavis@qq.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-07-17 18:24:52 +02:00
Sean Young
1301d405cd media: cxusb: use dev_dbg() rather than hand-rolled debug
[ Upstream commit c376d66515f89dd833b344c419e313db9ad169b5 ]

This solves the following compiler warnings:

drivers/media/usb/dvb-usb/cxusb.c: In function ‘cxusb_gpio_tuner’:
drivers/media/usb/dvb-usb/cxusb.c:128:35: warning: suggest braces around empty body in an ‘if’ statement [-Wempty-body]
  128 |   deb_info("gpio_write failed.\n");
      |                                   ^
drivers/media/usb/dvb-usb/cxusb.c: In function ‘cxusb_bluebird_gpio_rw’:
drivers/media/usb/dvb-usb/cxusb.c:145:44: warning: suggest braces around empty body in an ‘if’ statement [-Wempty-body]
  145 |   deb_info("bluebird_gpio_write failed.\n");
      |                                            ^
drivers/media/usb/dvb-usb/cxusb.c: In function ‘cxusb_i2c_xfer’:
drivers/media/usb/dvb-usb/cxusb.c:251:42: warning: suggest braces around empty body in an ‘if’ statement [-Wempty-body]
  251 |     deb_i2c("i2c read may have failed\n");
      |                                          ^
drivers/media/usb/dvb-usb/cxusb.c:274:43: warning: suggest braces around empty body in an ‘if’ statement [-Wempty-body]
  274 |     deb_i2c("i2c write may have failed\n");
      |                                           ^

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Stable-dep-of: 73fb3b92da84 ("media: cxusb: no longer judge rbuf when the write fails")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-07-17 18:24:52 +02:00
Vasiliy Kovalev
95ae5ee606 jfs: validate AG parameters in dbMount() to prevent crashes
[ Upstream commit 37bfb464ddca87f203071b5bd562cd91ddc0b40a ]

Validate db_agheight, db_agwidth, and db_agstart in dbMount to catch
corrupted metadata early and avoid undefined behavior in dbAllocAG.
Limits are derived from L2LPERCTL, LPERCTL/MAXAG, and CTLTREESIZE:

- agheight: 0 to L2LPERCTL/2 (0 to 5) ensures shift
  (L2LPERCTL - 2*agheight) >= 0.
- agwidth: 1 to min(LPERCTL/MAXAG, 2^(L2LPERCTL - 2*agheight))
  ensures agperlev >= 1.
  - Ranges: 1-8 (agheight 0-3), 1-4 (agheight 4), 1 (agheight 5).
  - LPERCTL/MAXAG = 1024/128 = 8 limits leaves per AG;
    2^(10 - 2*agheight) prevents division to 0.
- agstart: 0 to CTLTREESIZE-1 - agwidth*(MAXAG-1) keeps ti within
  stree (size 1365).
  - Ranges: 0-1237 (agwidth 1), 0-348 (agwidth 8).

UBSAN: shift-out-of-bounds in fs/jfs/jfs_dmap.c:1400:9
shift exponent -335544310 is negative
CPU: 0 UID: 0 PID: 5822 Comm: syz-executor130 Not tainted 6.14.0-rc5-syzkaller #0
Hardware name: Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 ubsan_epilogue lib/ubsan.c:231 [inline]
 __ubsan_handle_shift_out_of_bounds+0x3c8/0x420 lib/ubsan.c:468
 dbAllocAG+0x1087/0x10b0 fs/jfs/jfs_dmap.c:1400
 dbDiscardAG+0x352/0xa20 fs/jfs/jfs_dmap.c:1613
 jfs_ioc_trim+0x45a/0x6b0 fs/jfs/jfs_discard.c:105
 jfs_ioctl+0x2cd/0x3e0 fs/jfs/ioctl.c:131
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:906 [inline]
 __se_sys_ioctl+0xf5/0x170 fs/ioctl.c:892
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Found by Linux Verification Center (linuxtesting.org) with Syzkaller.

Cc: stable@vger.kernel.org
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Reported-by: syzbot+fe8264911355151c487f@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=fe8264911355151c487f
Signed-off-by: Vasiliy Kovalev <kovalev@altlinux.org>
Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-07-17 18:24:52 +02:00
Dave Kleikamp
7d17153a85 fs/jfs: consolidate sanity checking in dbMount
[ Upstream commit 0d250b1c52484d489e31df2cf9118b7c4bd49d31 ]

Sanity checks have been added to dbMount as individual if clauses with
identical error handling. Move these all into one clause.

Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
Stable-dep-of: 37bfb464ddca ("jfs: validate AG parameters in dbMount() to prevent crashes")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-07-17 18:24:52 +02:00
Martin Blumenstingl
80efe2d9ce ASoC: meson: meson-card-utils: use of_property_present() for DT parsing
[ Upstream commit 171eb6f71e9e3ba6a7410a1d93f3ac213f39dae2 ]

Commit c141ecc3cecd ("of: Warn when of_property_read_bool() is used on
non-boolean properties") added a warning when trying to parse a property
with a value (boolean properties are defined as: absent = false, present
without any value = true). This causes a warning from meson-card-utils.

meson-card-utils needs to know about the existence of the
"audio-routing" and/or "audio-widgets" properties in order to properly
parse them. Switch to of_property_present() in order to silence the
following warning messages during boot:
  OF: /sound: Read of boolean property 'audio-routing' with a value.
  OF: /sound: Read of boolean property 'audio-widgets' with a value.

Fixes: 7864a79f37 ("ASoC: meson: add axg sound card support")
Tested-by: Christian Hewitt <christianshewitt@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Link: https://patch.msgid.link/20250419213448.59647-1-martin.blumenstingl@googlemail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-07-17 18:24:52 +02:00
Rob Herring
f1195eb224 of: Add of_property_present() helper
[ Upstream commit 9cbad37ce8122de32a1529e394b468bc101c9e7f ]

Add an of_property_present() function similar to
fwnode_property_present(). of_property_read_bool() could be used
directly, but it is cleaner to not use it on non-boolean properties.

Reviewed-by: Frank Rowand <frowand.list@gmail.com>
Tested-by: Frank Rowand <frowand.list@gmail.com>
Link: https://lore.kernel.org/all/20230215215547.691573-1-robh@kernel.org/
Signed-off-by: Rob Herring <robh@kernel.org>
Stable-dep-of: 171eb6f71e9e ("ASoC: meson: meson-card-utils: use of_property_present() for DT parsing")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-07-17 18:24:52 +02:00