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Filename Latest commit message Latest commit date
Lizhi Xu 0d11dc30ed mac802154: check local interfaces before deleting sdata list
[ Upstream commit eb09fbeb48709fe66c0d708aed81e910a577a30a ]

syzkaller reported a corrupted list in ieee802154_if_remove. [1]

Remove an IEEE 802.15.4 network interface after unregister an IEEE 802.15.4
hardware device from the system.

CPU0					CPU1
====					====
genl_family_rcv_msg_doit		ieee802154_unregister_hw
ieee802154_del_iface			ieee802154_remove_interfaces
rdev_del_virtual_intf_deprecated	list_del(&sdata->list)
ieee802154_if_remove
list_del_rcu

The net device has been unregistered, since the rcu grace period,
unregistration must be run before ieee802154_if_remove.

To avoid this issue, add a check for local->interfaces before deleting
sdata list.

[1]
kernel BUG at lib/list_debug.c:58!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 0 UID: 0 PID: 6277 Comm: syz-executor157 Not tainted 6.12.0-rc6-syzkaller-00005-g557329bcecc2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:__list_del_entry_valid_or_report+0xf4/0x140 lib/list_debug.c:56
Code: e8 a1 7e 00 07 90 0f 0b 48 c7 c7 e0 37 60 8c 4c 89 fe e8 8f 7e 00 07 90 0f 0b 48 c7 c7 40 38 60 8c 4c 89 fe e8 7d 7e 00 07 90 <0f> 0b 48 c7 c7 a0 38 60 8c 4c 89 fe e8 6b 7e 00 07 90 0f 0b 48 c7
RSP: 0018:ffffc9000490f3d0 EFLAGS: 00010246
RAX: 000000000000004e RBX: dead000000000122 RCX: d211eee56bb28d00
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffff88805b278dd8 R08: ffffffff8174a12c R09: 1ffffffff2852f0d
R10: dffffc0000000000 R11: fffffbfff2852f0e R12: dffffc0000000000
R13: dffffc0000000000 R14: dead000000000100 R15: ffff88805b278cc0
FS:  0000555572f94380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000056262e4a3000 CR3: 0000000078496000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __list_del_entry_valid include/linux/list.h:124 [inline]
 __list_del_entry include/linux/list.h:215 [inline]
 list_del_rcu include/linux/rculist.h:157 [inline]
 ieee802154_if_remove+0x86/0x1e0 net/mac802154/iface.c:687
 rdev_del_virtual_intf_deprecated net/ieee802154/rdev-ops.h:24 [inline]
 ieee802154_del_iface+0x2c0/0x5c0 net/ieee802154/nl-phy.c:323
 genl_family_rcv_msg_doit net/netlink/genetlink.c:1115 [inline]
 genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline]
 genl_rcv_msg+0xb14/0xec0 net/netlink/genetlink.c:1210
 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2551
 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219
 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
 netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1357
 netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1901
 sock_sendmsg_nosec net/socket.c:729 [inline]
 __sock_sendmsg+0x221/0x270 net/socket.c:744
 ____sys_sendmsg+0x52a/0x7e0 net/socket.c:2607
 ___sys_sendmsg net/socket.c:2661 [inline]
 __sys_sendmsg+0x292/0x380 net/socket.c:2690
 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

Reported-and-tested-by: syzbot+985f827280dc3a6e7e92@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=985f827280dc3a6e7e92
Signed-off-by: Lizhi Xu <lizhi.xu@windriver.com>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/20241113095129.1457225-1-lizhi.xu@windriver.com
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-02-01 18:18:50 +01:00
arch arm64: dts: rockchip: add hevc power domain clock to rk3328 2025-02-01 18:18:49 +01:00
block blk-iocost: Avoid using clamp() on inuse in __propagate_weights() 2024-12-19 18:05:04 +01:00
certs certs/blacklist_hashes.c: fix const confusion in certs blacklist 2022-06-22 14:11:22 +02:00
crypto crypto: pcrypt - Call crypto layer directly when padata_do_parallel() return -EBUSY 2024-12-14 19:44:23 +01:00
Documentation PCI: Add 'reset_subordinate' to reset hierarchy below bridge 2024-12-14 19:44:54 +01:00
drivers i2c: mux: demux-pinctrl: check initial mux selection, too 2025-02-01 18:18:50 +01:00
fs ocfs2: fix slab-use-after-free due to dangling pointer dqi_priv 2025-02-01 18:18:49 +01:00
include net: add exit_batch_rtnl() method 2025-02-01 18:18:49 +01:00
init initramfs: avoid filename buffer overrun 2024-12-14 19:44:21 +01:00
ipc ipc: replace costly bailout check in sysvipc_find_ipc() 2024-09-04 13:15:02 +02:00
kernel ftrace: use preempt_enable/disable notrace macros to avoid double fault 2025-01-09 13:23:37 +01:00
lib lib: string_helpers: silence snprintf() output truncation warning 2024-12-14 19:44:39 +01:00
LICENSES LICENSES: Rename other to deprecated 2019-05-03 06:34:32 -06:00
mm mm: vmscan: account for free pages to prevent infinite Loop in throttle_direct_reclaim() 2025-01-09 13:23:37 +01:00
net mac802154: check local interfaces before deleting sdata list 2025-02-01 18:18:50 +01:00
samples samples/bpf: Fix a resource leak 2024-12-14 19:44:50 +01:00
scripts modpost: fix the missed iteration for the max bit in do_input() 2025-01-09 13:23:36 +01:00
security selinux: ignore unknown extended permissions 2025-01-09 13:23:33 +01:00
sound sound: usb: format: don't warn that raw DSD is unsupported 2025-01-09 13:23:36 +01:00
tools perf trace: Avoid garbage when not printing a syscall's arguments 2024-12-14 19:44:32 +01:00
usr initramfs: restore default compression behavior 2020-04-08 09:08:38 +02:00
virt KVM: arm64: Ignore PMCNTENSET_EL0 while checking for overflow status 2024-12-19 18:05:04 +01:00
.clang-format clang-format: Update with the latest for_each macro list 2019-08-31 10:00:51 +02:00
.cocciconfig
.get_maintainer.ignore Opt out of scripts/get_maintainer.pl 2019-05-16 10:53:40 -07:00
.gitattributes
.gitignore Remove *.orig pattern from .gitignore 2024-11-08 16:20:33 +01:00
.mailmap ARM: SoC fixes 2019-11-10 13:41:59 -08:00
COPYING
CREDITS MAINTAINERS: Remove Simon as Renesas SoC Co-Maintainer 2019-10-10 08:12:51 -07:00
Kbuild kbuild: do not descend to ./Kbuild when cleaning 2019-08-21 21:03:58 +09:00
Kconfig docs: kbuild: convert docs to ReST and rename to *.rst 2019-06-14 14:21:21 -06:00
MAINTAINERS iio: stx104: Move to addac subdirectory 2023-08-30 16:27:12 +02:00
Makefile Linux 5.4.289 2025-01-09 13:23:37 +01:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.