Christian Brauner
857abe7dd6
UPSTREAM: close_range: add CLOSE_RANGE_UNSHARE ...
One of the use-cases of close_range() is to drop file descriptors just before
execve(). This would usually be expressed in the sequence:
unshare(CLONE_FILES);
close_range(3, ~0U);
as pointed out by Linus it might be desirable to have this be a part of
close_range() itself under a new flag CLOSE_RANGE_UNSHARE.
This expands {dup,unshare)_fd() to take a max_fds argument that indicates the
maximum number of file descriptors to copy from the old struct files. When the
user requests that all file descriptors are supposed to be closed via
close_range(min, max) then we can cap via unshare_fd(min) and hence don't need
to do any of the heavy fput() work for everything above min.
The patch makes it so that if CLOSE_RANGE_UNSHARE is requested and we do in
fact currently share our file descriptor table we create a new private copy.
We then close all fds in the requested range and finally after we're done we
install the new fd table.
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Change-Id: I0813045886501e40a45693ee1edad50bdf2b66e5
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
2025-12-22 03:48:31 +02:00
firmware: meson_sm: Rework driver as a proper platform driver
2024-04-13 12:51:26 +02:00
iio: frequency: adf4350: Fix ADF4350_REG3_12BIT_CLKDIV_MODE
2025-10-29 13:59:50 +01:00
net/mlx4_core: Avoid impossible mlx4_db_alloc() order value
2025-06-04 14:32:33 +02:00
RDMA/mlx5: Enforce same type port association for multiport RoCE
2025-01-09 13:23:34 +01:00
mmc: sdhci-msm: Disable partial_init and clk-scaling to avoid RED error
2024-04-18 10:46:06 +05:30
Merge tag 'ASB-2024-12-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina
2024-12-17 03:24:53 +02:00
Revert "netfilter: Replace zero-length array with flexible-array member"
2025-01-14 17:17:17 +00:00
Revert "netfilter: Replace zero-length array with flexible-array member"
2025-01-14 17:17:17 +00:00
Revert "netfilter: Replace zero-length array with flexible-array member"
2025-01-14 17:17:17 +00:00
Revert "netfilter: Replace zero-length array with flexible-array member"
2025-01-14 17:17:17 +00:00
Revert "netfilter: Replace zero-length array with flexible-array member"
2025-01-14 17:17:17 +00:00
Merge tag 'ASB-2024-10-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina
2024-10-09 18:08:17 +00:00
qed: Improve the stack space of filter_config()
2024-08-19 05:33:30 +02:00
Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina
2025-09-12 18:48:05 +03:00
UPSTREAM: mm: return faster for non-fatal signals in user mode faults
2025-05-18 08:08:42 +00:00
soc: qcom: mdt_loader: Read hash from firmware blob
2024-08-08 16:32:23 -05:00
Revert "spi: Fix deadlock when adding SPI controllers on SPI buses"
2024-11-21 22:00:36 +00:00
SUNRPC: Replace internal use of SOCKWQ_ASYNC_NOSPACE
2024-12-14 19:44:42 +01:00
Merge tag 'ASB-2025-10-06_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina
2025-10-08 15:17:54 +03:00
ACPI/IORT: Make iort_msi_map_rid() PCI agnostic
2023-12-13 18:18:10 +01:00
UPSTREAM: fs: add LSM-supporting anon-inode interface
2025-02-20 04:17:45 +02:00
ata: libata-scsi: Fix system suspend for a security locked drive
2025-12-03 12:45:21 +01:00
atm: atmtcp: Prevent arbitrary write in atmtcp_recv_control().
2025-09-04 14:05:54 +02:00
writeback: fix false warning in inode_to_wb()
2025-05-02 07:39:19 +02:00
Revert "coredump: hand a pidfd to the usermode coredump helper"
2025-06-05 07:57:32 +00:00
fix bitmap corruption on close_range() with CLOSE_RANGE_UNSHARE
2024-09-04 13:14:50 +02:00
Merge 5.4.287 into android11-5.4-lts
2024-12-16 10:50:16 +00:00
Revert "bpf: Add map and need_defer parameters to .map_fd_put_ptr()"
2024-03-05 10:21:38 +00:00
Revert "cgroup: Make operations on the cgroup root_list RCU safe"
2024-12-16 10:50:29 +00:00
Merge android11-5.4.259+ ( 81334f2) into msm-5.4
2023-12-18 15:40:18 +05:30
ftruncate: pass a signed offset
2024-07-05 09:08:31 +02:00
Fix gcc 4.9 build issue in 5.4.y
2024-08-19 05:33:53 +02:00
This is the 5.4.302 stable release
2025-12-03 14:36:44 +00:00
Merge android11-5.4.254+ ( 91f7025) into msm-5.4
2023-10-30 22:46:41 -07:00
Revert "hrtimers: Push pending hrtimers away from outgoing CPU earlier"
2023-12-18 18:58:40 +00:00
Merge tag 'ASB-2024-10-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina
2024-10-09 18:08:17 +00:00
Revert "cred: switch to using atomic_long_t"
2024-01-03 17:00:08 +00:00
This is the 5.4.283 stable release
2024-09-06 11:18:13 +00:00
Merge tag 'ASB-2025-12-01_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina
2025-12-04 19:21:35 +02:00
Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina
2025-09-01 13:17:46 +03:00
dmaengine: fix is_slave_direction() return false when DMA_DEV_TO_DEV
2024-02-23 08:25:06 +01:00
misc: eeprom: eeprom_93cx6: Add quirk for extra read clock cycle
2024-12-14 19:44:55 +01:00
ethernet: Add helper for assigning packet type when dest address does not match device address
2024-05-02 16:18:36 +02:00
UPSTREAM: close_range: add CLOSE_RANGE_UNSHARE
2025-12-22 03:48:31 +02:00
This is the 5.4.302 stable release
2025-12-03 14:36:44 +00:00
objtool: Add support for intra-function calls
2024-04-13 12:51:29 +02:00
Merge tag 'ASB-2025-10-06_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina
2025-10-08 15:17:54 +03:00
This is the 5.4.280 stable release
2024-07-19 13:19:29 +00:00
Merge android11-5.4.274 ( 564901b) into msm-5.4
2024-07-24 20:38:43 -07:00
This is the 5.4.295 stable release
2025-06-30 08:05:33 +00:00
gpu: host1x: mipi: Update tegra_mipi_request() to be node based
2024-03-26 18:22:18 -04:00
Revert "hrtimers: Handle CPU state correctly on hotplug"
2025-04-26 12:28:45 +02:00
BACKPORT: FROMGIT: userfaultfd: add UFFDIO_CONTINUE ioctl
2025-05-18 08:08:42 +00:00
Revert "mm: provide speculative fault infrastructure"
2025-05-24 05:44:05 +00:00
Drivers: hv: util: Avoid accessing a ringbuffer not initialized yet
2025-01-09 13:23:33 +01:00
i2c: Use IS_REACHABLE() for substituting empty ACPI functions
2024-09-12 11:03:50 +02:00
clockevents/drivers/i8253: Fix stop sequence for timer 0
2025-04-10 14:29:34 +02:00
Fix termination state for idr_for_each_entry_ul()
2023-11-20 10:30:15 +01:00
team: fix null-ptr-deref when team device type is changed
2023-10-10 21:46:37 +02:00
net: vlan: Replace BUG() with WARN_ON_ONCE() in vlan_dev_* stubs
2025-08-28 16:21:27 +02:00
Merge branch 'android11-5.4-lts' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina
2025-10-08 15:23:13 +03:00
Merge android11-5.4.281 ( d62984a) into msm-5.4
2024-10-29 01:43:17 -07:00
Merge 5.4.259 into android11-5.4-lts
2023-10-26 09:18:00 +00:00
msm: ipa: Add support for Private IP Forwarding
2024-01-31 15:08:32 +05:30
msm: ipa3: change variable name for indication of
2024-03-13 08:33:14 -07:00
Revert "genirq: Allow irq_chip registration functions to take a const irq_chip"
2024-08-30 10:05:12 +00:00
Revert "genirq: Allow the PM device to originate from irq domain"
2024-08-30 10:05:12 +00:00
jbd2: introduce/export functions jbd2_journal_submit|finish_inode_data_buffers()
2024-11-08 16:20:30 +01:00
Merge 5.4.287 into android11-5.4-lts
2024-12-16 10:50:16 +00:00
This is the 5.4.291 stable release
2025-03-13 14:53:52 +00:00
KVM: Explicitly verify target vCPU is online in kvm_get_vcpu()
2025-03-13 12:43:07 +01:00
leds: class: Protect brightness_show() with led_cdev->led_access mutex
2024-12-14 19:44:53 +01:00
ata: libata-sata: increase PMP SRST timeout to 10s
2023-10-10 21:46:42 +02:00
drm/syncobj: make lockdep complain on WAIT_FOR_SUBMIT v3
2024-03-01 13:13:38 +01:00
BACKPORT: security: add inode_init_security_anon() LSM hook
2025-02-20 04:17:45 +02:00
mcb: remove is_added flag from mcb_device struct
2023-10-25 11:53:19 +02:00
net: phy: mchp: Add support for LAN8814 QUAD PHY
2024-07-05 09:08:27 +02:00
Revert "mm/migrate: Pass vm_fault pointer to migrate_misplaced_page()"
2025-05-24 05:44:07 +00:00
Merge branch 'android11-5.4-lts' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina
2025-12-11 01:41:51 -08:00
Revert "mm: make pte_unmap_same compatible with SPF"
2025-05-24 05:44:30 +00:00
module: Restore the moduleparam prefix length check
2025-08-28 16:21:21 +02:00
msm: ep_pcie: Disable hot reset and ignore linkdown
2024-09-13 17:38:37 +05:30
Revert "net: add ndo_fdb_del_bulk"
2025-10-31 07:56:01 +00:00
netpoll: netpoll_send_skb() returns transmit status
2025-04-10 14:29:35 +02:00
nfs: add missing selections of CONFIG_CRC32
2025-05-02 07:39:20 +02:00
nfs: fix UAF in direct writes
2025-08-28 16:21:37 +02:00
Revert "fs/nls: make load_nls() take a const parameter"
2023-09-30 15:41:35 +00:00
Merge android11-5.4.254+ ( 91f7025) into msm-5.4
2023-10-30 22:46:41 -07:00
nvme: fixup comment for nvme RDMA Provider Type
2024-07-05 09:08:28 +02:00
mlxsw: spectrum_acl_erp: Fix object nesting warning
2024-08-19 05:33:28 +02:00
Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina
2025-09-12 18:48:05 +03:00
of/irq: Make of_msi_map_rid() PCI bus agnostic
2023-12-13 18:18:11 +01:00
overflow: Allow mixed type arguments
2025-03-13 12:42:52 +01:00
Revert "mm: provide speculative fault infrastructure"
2025-05-24 05:44:05 +00:00
Revert "PCI/ACPI: Fix runtime PM ref imbalance on Hot-Plug Capable ports"
2025-09-02 14:38:47 +00:00
This is the 5.4.291 stable release
2025-03-13 14:53:52 +00:00
Merge android11-5.4.265+ ( a34cc1d) into msm-5.4
2024-02-29 15:10:56 +05:30
ANDROID: 16K: Don't copy data vma for maps/smaps output
2025-08-22 07:06:50 -07:00
ANDROID: 16K: Introduce pgsize_migration_inline.h
2024-10-10 16:13:30 -07:00
Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina
2025-09-01 13:17:46 +03:00
ANDROID: fix up platform_device ABI break
2023-11-28 10:15:58 +00:00
This is the 5.4.269 stable release
2024-02-24 15:47:08 +00:00
poll_wait: add mb() to fix theoretical race between waitqueue_active() and .poll()
2025-02-01 18:18:51 +01:00
power: supply: core: Use blocking_notifier_call_chain to avoid RCU complaint
2025-05-25 16:53:58 +00:00
pps: fix poll support
2025-08-28 16:21:18 +02:00
sched/rt: Provide migrate_disable/enable() inlines
2023-11-20 10:30:12 +01:00
This is the 5.4.262 stable release
2023-11-29 10:18:14 +00:00
firmware: qcom_scm: Add a call for getting dload mode
2024-06-21 10:36:14 +05:30
Merge 5.4.259 into android11-5.4-lts
2023-10-26 09:18:00 +00:00
quota: Fix slow quotaoff
2023-10-25 11:53:18 +02:00
rcu: add a helper to report consolidated flavor QS
2024-03-26 18:22:25 -04:00
rcu: fix header guard for rcu_all_qs()
2025-06-04 14:32:34 +02:00
Revert "regmap: allow to define reg_update_bits for no bus configuration"
2024-04-16 10:04:00 +00:00
This is the 5.4.284 stable release
2024-09-12 10:37:37 +00:00
Revert "mm: introduce __page_add_new_anon_rmap()"
2025-05-24 05:44:06 +00:00
Merge android11-5.4.259+ ( 81334f2) into msm-5.4
2023-12-18 15:40:18 +05:30
sched/headers: Move 'struct sched_param' out of uapi, to work around glibc/musl breakage
2025-06-30 14:38:08 +03:00
BACKPORT: security: add inode_init_security_anon() LSM hook
2025-02-20 04:17:45 +02:00
Revert "Revert "Revert "8250: add support for ASIX devices with a FIFO bug"""
2025-05-18 11:04:18 +03:00
serial: core: fix kernel-doc for uart_port_unlock_irqrestore()
2024-05-02 16:18:37 +02:00
dmaengine: sh: setup_xref error handling
2025-12-03 12:45:11 +01:00
BACKPORT: FROMGIT: userfaultfd/shmem: combine shmem_{mcopy_atomic,mfill_zeropage}_pte
2025-05-18 08:08:42 +00:00
Merge tag 'ASB-2025-10-06_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina
2025-10-08 15:17:54 +03:00
Revert "mm: introduce __lru_cache_add_active_or_unevictable"
2025-05-24 05:44:06 +00:00
UPSTREAM: open: add close_range()
2025-12-22 03:47:50 +02:00
ANDROID: preserve CRC for struct tcp_sock
2024-07-20 12:53:22 +00:00
Merge android11-5.4.274 ( 564901b) into msm-5.4
2024-07-24 20:38:43 -07:00
Revert "tracing: Constify string literal data member in struct trace_event_call"
2025-01-13 09:47:29 +00:00
types: Complement the aligned types with signed 64-bit one
2025-06-04 14:32:27 +02:00
u64_stats: fix u64_stats_init() for lockdep when used repeatedly in one file
2024-05-02 16:18:28 +02:00
UPSTREAM: udp: do not accept non-tunnel GSO skbs landing in a tunnel
2025-03-10 16:19:50 +00:00
units: add the HZ macros
2024-02-23 08:24:47 +01:00
Merge branch 'android11-5.4-lts' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina
2025-12-11 01:41:51 -08:00
BACKPORT: FROMGIT: userfaultfd/shmem: modify shmem_mfill_atomic_pte to use install_pte()
2025-05-18 08:08:42 +00:00
util_macros.h: fix/rework find_closest() macros
2024-12-14 19:44:43 +01:00
vfio: Introduce interface to flush virqfd inject workqueue
2024-04-13 12:51:34 +02:00
Revert "mm: add speculative page fault vmstats"
2025-05-24 05:44:04 +00:00
Merge tag 'ASB-2025-02-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina
2025-02-06 22:53:05 +02:00
