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Linus Torvalds 2408a807bf vfs-6.14-rc4.fixes
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Merge tag 'vfs-6.14-rc4.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull vfs fixes from Christian Brauner:
 "It was reported that the acct(2) system call can be used to trigger a
  NULL deref in cases where it is set to write to a file that triggers
  an internal lookup.

  This can e.g., happen when pointing acct(2) to /sys/power/resume. At
  the point the where the write to this file happens the calling task
  has already exited and called exit_fs() but an internal lookup might
  be triggered through lookup_bdev(). This may trigger a NULL-deref when
  accessing current->fs.

  Reorganize the code so that the the final write happens from the
  workqueue but with the caller's credentials. This preserves the
  (strange) permission model and has almost no regression risk.

  Also block access to kernel internal filesystems as well as procfs and
  sysfs in the first place.

  Various fixes for netfslib:

   - Fix a number of read-retry hangs, including:

      - Incorrect getting/putting of references on subreqs as we retry
        them

      - Failure to track whether a last old subrequest in a retried set
        is superfluous

      - Inconsistency in the usage of wait queues used for subrequests
        (ie. using clear_and_wake_up_bit() whilst waiting on a private
        waitqueue)

   - Add stats counters for retries and publish in /proc/fs/netfs/stats.
     This is not a fix per se, but is useful in debugging and shouldn't
     otherwise change the operation of the code

   - Fix the ordering of queuing subrequests with respect to setting the
     request flag that says we've now queued them all"

* tag 'vfs-6.14-rc4.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  netfs: Fix setting NETFS_RREQ_ALL_QUEUED to be after all subreqs queued
  netfs: Add retry stat counters
  netfs: Fix a number of read-retry hangs
  acct: block access to kernel internal filesystems
  acct: perform last write from workqueue
2025-02-17 10:38:25 -08:00
..
bpf Summary: 2025-01-29 10:35:40 -08:00
cgroup cgroup: Remove steal time from usage_usec 2025-02-07 11:02:17 -10:00
configs configs/debug: make sure PROVE_RCU_LIST=y takes effect 2024-10-28 10:21:09 -07:00
debug kdb: Remove unused flags stack 2025-01-25 08:22:26 +00:00
dma dma-debug: fix physical address calculation for struct dma_debug_entry 2024-11-28 10:19:16 +01:00
entry sched: Add TIF_NEED_RESCHED_LAZY infrastructure 2024-11-05 12:55:37 +01:00
events kernel: be more careful about dup_mmap() failures and uprobe registering 2025-02-01 03:53:25 -08:00
futex Fix a dangling pointer bug in the futex code used by the 2025-02-08 10:54:11 -08:00
gcov gcov: clang: use correct function param names 2025-01-24 22:47:27 -08:00
irq genirq: Remove unused CONFIG_GENERIC_PENDING_IRQ_CHIPFLAGS 2025-02-13 13:18:54 +01:00
kcsan kcsan: Remove redundant call of kallsyms_lookup_name() 2024-10-14 16:44:56 +02:00
livepatch livepatch: Add stack_order sysfs attribute 2024-12-09 11:44:03 +01:00
locking treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
module Kbuild updates for v6.14 2025-01-31 12:07:07 -08:00
power More power management updates for 6.14-rc1 2025-01-30 15:10:34 -08:00
printk treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
rcu The various patchsets are summarized below. Plus of course many 2025-01-26 18:36:23 -08:00
sched - Clarify what happens when a task is woken up from the wake queue and make 2025-02-16 10:38:24 -08:00
time Fix a PREEMPT_RT bug in the clocksource verification code that 2025-02-08 11:55:03 -08:00
trace ring-buffer: Update pages_touched to reflect persistent buffer content 2025-02-15 14:00:59 -05:00
.gitignore
acct.c acct: block access to kernel internal filesystems 2025-02-12 12:24:16 +01:00
async.c async: Use a dedicated unbound workqueue with raised min_active 2024-02-09 11:13:59 -10:00
audit.c audit: Initialize lsmctx to avoid memory allocation error 2025-01-29 20:02:04 -05:00
audit.h audit: change context data from secid to lsm_prop 2024-10-11 14:34:16 -04:00
audit_fsnotify.c
audit_tree.c fsnotify: create a wrapper fsnotify_find_inode_mark() 2024-04-04 16:24:16 +02:00
audit_watch.c fsnotify: create a wrapper fsnotify_find_inode_mark() 2024-04-04 16:24:16 +02:00
auditfilter.c audit: fix suffixed '/' filename matching 2024-12-05 19:22:38 -05:00
auditsc.c lsm/stable-6.14 PR 20250121 2025-01-21 20:03:04 -08:00
backtracetest.c backtracetest: add MODULE_DESCRIPTION() 2024-06-24 22:24:55 -07:00
bounds.c bounds: Use the right number of bits for power-of-two CONFIG_NR_CPUS 2024-04-29 08:29:29 -07:00
capability.c kernel: remove get_task_comm() and print task comm directly 2025-01-12 20:21:15 -08:00
cfi.c
compat.c
configs.c
context_tracking.c context_tracking, rcu: Rename rcu_dyntick trace event into rcu_watching 2024-08-15 21:30:43 +05:30
cpu.c The various patchsets are summarized below. Plus of course many 2025-01-26 18:36:23 -08:00
cpu_pm.c
crash_core.c kexec/crash: no crash update when kexec in progress 2024-11-05 17:12:27 -08:00
crash_reserve.c crash: fix crash memory reserve exceed system memory bug 2024-09-01 20:43:30 -07:00
cred.c cred: remove old {override,revert}_creds() helpers 2024-12-02 11:25:09 +01:00
delayacct.c treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
dma.c
elfcorehdr.c crash: remove dependency of FA_DUMP on CRASH_DUMP 2024-02-23 17:48:22 -08:00
exec_domain.c
exit.c treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
exit.h
extable.c
fail_function.c
fork.c kernel: be more careful about dup_mmap() failures and uprobe registering 2025-02-01 03:53:25 -08:00
freezer.c sched/fair: Fix external p->on_rq users 2024-10-14 09:14:35 +02:00
gen_kheaders.sh Kbuild updates for v6.14 2025-01-31 12:07:07 -08:00
groups.c
hung_task.c treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
iomem.c
irq_work.c kasan: make kasan_record_aux_stack_noalloc() the default behaviour 2025-01-13 22:40:36 -08:00
jump_label.c jump_label: Fix static_key_slow_dec() yet again 2024-09-10 11:57:27 +02:00
kallsyms.c kallsyms: Match symbols exactly with CONFIG_LTO_CLANG 2024-08-15 09:33:35 -07:00
kallsyms_internal.h kallsyms: get rid of code for absolute kallsyms 2024-07-20 16:33:21 +09:00
kallsyms_selftest.c kallsyms: Use kthread_run_on_cpu() 2025-01-02 22:12:12 +01:00
kallsyms_selftest.h
kcmp.c get rid of ...lookup...fdget_rcu() family 2024-10-07 13:34:41 -04:00
Kconfig.freezer
Kconfig.hz
Kconfig.kexec crash, powerpc: default to CRASH_DUMP=n on PPC_BOOK3S_32 2024-11-14 22:43:48 -08:00
Kconfig.locks
Kconfig.preempt sched: No PREEMPT_RT=y for all{yes,mod}config 2024-11-07 15:25:05 +01:00
kcov.c kcov: mark in_softirq_really() as __always_inline 2024-12-30 17:59:08 -08:00
kexec.c crash: add a new kexec flag for hotplug support 2024-04-23 14:59:01 +10:00
kexec_core.c treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
kexec_elf.c
kexec_file.c kexec_file: fix elfcorehdr digest exclusion when CONFIG_CRASH_HOTPLUG=y 2024-09-01 17:59:01 -07:00
kexec_internal.h kexec: use atomic_try_cmpxchg_acquire() in kexec_trylock() 2024-09-01 20:43:23 -07:00
kheaders.c kheaders: Simplify attribute through __BIN_ATTR_SIMPLE_RO() 2024-12-24 09:46:49 +01:00
kprobes.c treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
ksyms_common.c
ksysfs.c kernel/ksysfs.c: simplify bin_attribute definition 2025-01-07 16:59:15 +01:00
kthread.c kthread: Fix return value on kzalloc() failure in kthread_affine_preferred() 2025-02-04 01:42:27 +01:00
latencytop.c treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
Makefile mm: move kernel/numa.c to mm/ 2024-09-03 21:15:26 -07:00
module_signature.c
notifier.c reboot: move reboot_notifier_list to kernel/reboot.c 2024-11-05 17:12:31 -08:00
nsproxy.c fdget(), trivial conversions 2024-11-03 01:28:06 -05:00
padata.c padata: avoid UAF for reorder_work 2025-01-19 12:44:28 +08:00
panic.c treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
params.c module: Constify 'struct module_attribute' 2025-01-26 13:05:23 +01:00
pid.c treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
pid_namespace.c treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
pid_sysctl.h treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
profile.c profiling: remove profile=sleep support 2024-08-04 13:36:28 -07:00
ptrace.c ptrace_attach: shift send(SIGSTOP) into ptrace_set_stopped() 2024-02-22 15:38:52 -08:00
range.c
reboot.c treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
regset.c regset: use kvzalloc() for regset_get_alloc() 2024-04-25 21:07:03 -07:00
relay.c [tree-wide] finally take no_llseek out 2024-09-27 08:18:43 -07:00
resource.c kernel/resource: simplify API __devm_release_region() implementation 2025-01-12 20:20:58 -08:00
resource_kunit.c resource, kunit: fix user-after-free in resource_test_region_intersects() 2024-10-09 12:47:19 -07:00
rseq.c rseq: Fix rseq unregistration regression 2025-01-21 08:10:51 +01:00
scftorture.c scftorture: Handle NULL argument passed to scf_add_to_free_list(). 2024-11-14 16:09:51 -08:00
scs.c
seccomp.c seccomp: passthrough uretprobe systemcall without filtering 2025-02-06 12:48:21 -08:00
signal.c treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
smp.c CSD-lock pull request for v6.14 2025-01-28 11:34:03 -08:00
smpboot.c
smpboot.h
softirq.c softirq: Allow raising SCHED_SOFTIRQ from SMP-call-function on RT kernel 2024-12-02 12:01:27 +01:00
stackleak.c treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
stacktrace.c stacktrace: fix kernel-doc typo 2023-12-29 12:22:29 -08:00
static_call.c
static_call_inline.c x86/static-call: provide a way to do very early static-call updates 2024-12-13 09:28:32 +01:00
stop_machine.c stop_machine: Fix rcu_momentary_eqs() call in multi_cpu_stop() 2024-12-11 20:50:47 -08:00
sys.c tracing: Add task_prctl_unknown tracepoint 2024-12-22 20:28:11 -08:00
sys_ni.c Probes updates for v6.11: 2024-07-18 12:19:20 -07:00
sysctl-test.c treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
sysctl.c treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
task_work.c kasan: make kasan_record_aux_stack_noalloc() the default behaviour 2025-01-13 22:40:36 -08:00
taskstats.c fdget(), more trivial conversions 2024-11-03 01:28:06 -05:00
torture.c torture: Add MODULE_DESCRIPTION() 2024-05-30 15:31:38 -07:00
tracepoint.c tracing: Fix syscall tracepoint use-after-free 2024-11-01 14:37:31 -04:00
tsacct.c tsacct: replace strncpy() with strscpy() 2024-07-12 16:39:53 -07:00
ucount.c ucounts: move kfree() out of critical zone protected by ucounts_lock 2025-01-12 20:21:00 -08:00
uid16.c
uid16.h
umh.c treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
up.c
user-return-notifier.c
user.c uidgid: make sure we fit into one cacheline 2024-09-12 12:16:09 +02:00
user_namespace.c user_namespace: use kmemdup_array() instead of kmemdup() for multiple allocation 2024-09-09 16:47:42 -07:00
usermode_driver.c
utsname.c
utsname_sysctl.c treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
vhost_task.c vhost_task: Handle SIGKILL by flushing work and exiting 2024-05-22 08:31:15 -04:00
vmcore_info.c mm: support only one page_type per page 2024-09-03 21:15:43 -07:00
watch_queue.c watch_queue: Use page->private instead of page->index 2024-12-22 11:29:51 +01:00
watchdog.c treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
watchdog_buddy.c
watchdog_perf.c watchdog/perf: properly initialize the turbo mode timestamp and rearm counter 2024-07-17 21:11:34 -07:00
workqueue.c workqueue: Fixes for v6.14-rc2 2025-02-14 10:58:03 -08:00
workqueue_internal.h