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Linus Torvalds 00b04f4495 vfs-7.4-rc1.idmap 
Please consider pulling these changes from the signed vfs-7.4-rc1.idmap tag.
 
 Thanks!
 Christian
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Merge tag 'vfs-7.4-rc1.idmap' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull vfs idmap constification from Christian Brauner:
 "This makes struct mnt_idmap const throughout the tree.

  A mount's idmapping is immutable. The only thing modified after
  alloc_mnt_idmap() is the reference count and that is hidden behind
  mnt_idmap_get() and mnt_idmap_put(). Everything else only reads from
  it. That is the same model struct cred uses and the idmapping is
  sensitive enough to deserve it.

  The conversion goes bottom up through the vfs{g,u}id and fs{g,u}id
  helpers, the privilege checks, acl, xattr and quota and then every
  inode operation that takes an idmap, so ->permission(), ->getattr(),
  ->setattr(), ->create(), ->mkdir(), ->mknod(), ->symlink(),
  ->rename(), ->tmpfile(), ->get_acl(), ->set_acl() and ->fileattr_set()
  with their implementations in every filesystem, plus the LSM hooks.

  struct vfsmount, struct mount_kattr and struct kstatmount store a
  const pointer and nop_mnt_idmap and invalid_mnt_idmap live in rodata,
  so anything that tries to modify them faults instead of silently
  corrupting the initial idmapping"

* tag 'vfs-7.4-rc1.idmap' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (27 commits)
  fs: make nop_mnt_idmap and invalid_mnt_idmap const
  fs: port mnt_idmap() and file_mnt_idmap() to const mnt_idmap
  fs: port vfs_*() helpers to const mnt_idmap
  fs: port ->setattr() to pass const mnt_idmap
  fs: port ->getattr() to pass const mnt_idmap
  fs: port ->create() to pass const mnt_idmap
  fs: port ->symlink() to pass const mnt_idmap
  fs: port ->mkdir() to pass const mnt_idmap
  fs: port ->rename() to pass const mnt_idmap
  fs: port ->mknod() to pass const mnt_idmap
  fs: port ->tmpfile() to pass const mnt_idmap
  fs: port ->get_acl() to pass const mnt_idmap
  fs: port ->set_acl() to pass const mnt_idmap
  fs: port ->fileattr_set() to pass const mnt_idmap
  fs: port xattr to const mnt_idmap
  fs: port ->permission() to pass const mnt_idmap
  fs: port acl to const mnt_idmap
  fs: port inode_init_owner() to const mnt_idmap
  fs: port inode_owner_or_capable() to const mnt_idmap
  fs: port privilege checking helpers to const mnt_idmap
  ...
2026-10-19 17:57:49 -10:00
..
bpf vfs-7.4-rc1.idmap 2026-10-19 17:57:49 -10:00
cgroup cgroup: Fixes for v7.3-rc6 2026-10-07 02:19:02 +02:00
configs slab: support for compiler-assisted type-based slab cache partitioning 2026-05-14 10:44:09 +02:00
debug kgdb: update outdated references to kgdb_wait() 2026-04-21 16:41:54 +01:00
dma dma-mapping fixes for Linux 7.3 2026-10-10 00:49:55 +02:00
entry syscall_user_dispatch: Use CONFIG_SYSCTL for sysctl guard 2026-09-07 14:00:56 +02:00
events perf: Update cgroup time when rotating multiplexed events 2026-10-16 09:49:01 +02:00
futex futex: Fix mm reuse handling for FUT_OFF_MMSHARED 2026-10-14 15:11:48 +02:00
gcov Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
irq irq: Make refcount_interrupt kunit test selectable 2026-10-02 11:40:12 +02:00
kcsan kcsan: avoid unintended access checking in NMIs 2026-07-20 18:18:37 +02:00
livepatch livepatch: Fix NULL pointer dereference in klp_find_func() 2026-07-07 12:54:37 +02:00
liveupdate kho: make boot time huge page allocation work nicely with KHO 2026-08-23 09:17:38 -07:00
locking Misc locking fixes: 2026-09-06 10:45:46 -07:00
module module: fix lost error code from codetag_load_module() 2026-09-26 13:55:09 -07:00
power PM: hibernate: Freeze kernel threads after image preallocation 2026-09-22 21:09:51 +02:00
printk printk: Postpone kthread startup 2026-10-16 17:07:29 +02:00
rcu srcu: Fix WARN_ON() for rcu_segcblist_n_cbs() in cleanup_srcu_struct() 2026-10-01 17:17:48 -07:00
sched Scheduler fixes: 2026-10-18 07:35:30 -10:00
tests userns: rename insert_extent() and sort_idmaps() 2026-09-11 15:00:37 +02:00
time time/jiffies: Saturate in mult_hz() instead of wrapping 2026-09-29 10:00:40 +02:00
trace tracing fixes for v7.3: 2026-10-16 14:27:22 -10:00
unwind Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
.gitignore
acct.c fs: move SB_I_USERNS_VISIBLE to FS_USERNS_MOUNT_RESTRICTED 2026-05-11 23:13:01 +02:00
async.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
audit_fsnotify.c audit: fix recursive locking deadlock in audit_dupe_exe() 2026-05-27 19:15:34 -04:00
audit_tree.c audit: fix exe mark UAF in kill_rules() 2026-09-25 16:18:51 -04:00
audit_watch.c audit: drop BUG_ON() from audit_add_to_parent() 2026-07-28 15:53:48 -04:00
audit.c audit: fix potential integer overflow in audit_log_n_string() 2026-07-29 16:19:06 -04:00
audit.h audit: fix recursive locking deadlock in audit_dupe_exe() 2026-05-27 19:15:34 -04:00
auditfilter.c audit/stable-7.3 PR 20260814 2026-08-19 16:21:32 -07:00
auditsc.c audit: drop BUG_ON() from audit_signal_info_syscall() 2026-07-28 15:53:49 -04:00
backtracetest.c
bounds.c x86/asm: Remove ANNOTATE_DATA_SPECIAL usage 2025-12-03 16:53:19 +01:00
capability.c vfs-7.4-rc1.idmap 2026-10-19 17:57:49 -10:00
cfi.c
compat.c
configs.c
context_tracking.c context_tracking: Remove rcu_task_trace_heavyweight_{enter,exit}() 2026-01-01 16:39:46 +08:00
cpu_pm.c
cpu.c Misc CPU hotplug fixes: 2026-06-23 16:43:24 -07:00
crash_core_test.c
crash_core.c powerpc/kexec_file: Use crash_exclude_core_ranges() helper 2026-06-30 18:49:06 +03:00
crash_dump_dm_crypt.c crash_dump: release keyring reference at the correct time 2026-07-13 10:04:47 +03:00
crash_reserve.c kernel/crash: remove inclusion of crypto/sha1.h 2026-03-27 21:19:46 -07:00
cred.c exec_state: relocate dumpable information 2026-05-26 11:02:01 +02:00
delayacct.c sysctl: remove CONFIG_PROC_SYSCTL, it just mirrors CONFIG_SYSCTL 2026-08-05 15:28:23 +02:00
dma.c
elfcorehdr.c
exec_domain.c
exec_state.c exec_state: relocate dumpable information 2026-05-26 11:02:01 +02:00
exit.c pid_namespace: make zap_pid_ns_processes() freezable 2026-10-14 22:08:04 +02:00
exit.h
extable.c
fail_function.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
fork.c kernel-7.4-rc1.signal 2026-10-19 16:22:15 -10:00
freezer.c
gen_kheaders.sh
groups.c treewide: Replace kmalloc with kmalloc_obj for non-scalar types 2026-02-21 01:02:28 -08:00
hung_task.c hung_task: explicitly report I/O wait state in log output 2026-03-27 21:19:40 -07:00
iomem.c
irq_work.c irq_work: Fix use-after-free in irq_work_single() on PREEMPT_RT 2026-05-11 16:28:04 +02:00
jump_label.c treewide: refresh kmalloc_obj() conversions 2026-09-04 21:37:00 -07:00
kallsyms_internal.h kallsyms: Get rid of kallsyms relative base 2026-01-22 15:58:22 -07:00
kallsyms_selftest.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
kallsyms_selftest.h
kallsyms.c mm.git review status for linus..mm-nonmm-stable 2026-02-12 12:13:01 -08:00
kcmp.c fs: add real_fs to track task's actual fs_struct 2026-06-29 10:43:45 +02:00
Kconfig.freezer
Kconfig.hz
Kconfig.kexec
Kconfig.locks locking/qspinlock: Add contended_release tracepoint 2026-08-07 17:58:10 +02:00
Kconfig.preempt sched_ext: Changes for v7.3 2026-08-20 11:01:37 -07:00
kcov.c mm.git review status for master..mm-nonmm-stable 2026-08-23 08:07:11 -07:00
kexec_core.c liveupdate: skip serialization for context-preserving kexec 2026-06-01 09:19:38 +03:00
kexec_elf.c
kexec_file.c kexec_file: skip checksum verification when safe 2026-07-01 13:01:08 +03:00
kexec_internal.h
kexec.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
kheaders.c
kprobes.c kprobes: Skip disarmed probes when checking optkprobe overlap 2026-10-02 15:51:57 +09:00
kstack_erase.c
ksyms_common.c
ksysfs.c kernel: ksysfs: initialize kernel_kobj earlier 2026-04-03 19:39:52 +02:00
kthread.c vfs-7.4-rc1.coredump 2026-10-19 17:21:24 -10:00
latencytop.c
Makefile userns: Add KUnit test suite for uid_gid_map 2026-09-09 09:45:01 +02:00
module_signature.c module: Give 'enum pkey_id_type' a more specific name 2026-03-24 21:42:37 +00:00
notifier.c
nscommon.c nsfs: tighten permission checks for ns iteration ioctls 2026-02-27 22:00:08 +01:00
nsproxy.c unshare: don't drop active namespace references that were never taken 2026-10-01 14:20:07 +02:00
nstree.c nstree: check listing permission before taking a namespace reference 2026-09-09 10:03:15 +02:00
padata.c padata: Put CPU offline callback in ONLINE section to allow failure 2026-03-22 11:17:59 +09:00
panic.c bug/kunit: Core support for suppressing warning backtraces 2026-05-14 10:50:00 -06:00
params.c mm.git review status for master..mm-nonmm-stable 2026-08-23 08:07:11 -07:00
pid_namespace.c kernel-7.4-rc1.signal 2026-10-19 16:22:15 -10:00
pid_sysctl.h
pid.c pid: use READ_ONCE() in pid_alive() 2026-10-12 11:13:01 +02:00
profile.c
ptrace.c ptrace: refuse to change the signal mask of a user worker 2026-09-22 15:33:16 +02:00
range.c
reboot.c Merge branch 'for-7.3-hotfix' into for-linus 2026-10-16 17:38:25 +02:00
regset.c
relay.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
resource_kunit.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
resource.c resource: downgrade "resource sanity check" warning to debug level 2026-08-03 21:10:05 -07:00
rseq.c rseq: Reenable performance optimizations conditionally 2026-05-06 17:40:27 +02:00
scftorture.c smp_call_function() torture-test updates: 2026-08-23 19:28:04 -07:00
scs.c
seccomp.c seccomp, treewide: Rename and convert __secure_computing() to return boolean 2026-07-12 12:38:02 +02:00
signal.c kernel-7.4-rc1.signal 2026-10-19 16:22:15 -10:00
smp.c SMP core updates: 2026-08-18 15:29:53 -07:00
smpboot.c
smpboot.h
softirq.c interrupt: Disable interrupt before modifying hardirq_disable counter 2026-08-30 08:39:04 +02:00
stacktrace.c
static_call_inline.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
static_call.c
stop_machine.c stop_machine: Make stop_one_cpu_nowait() return void 2026-07-31 12:35:26 +02:00
sys_ni.c time: Respect COMPAT_32BIT_TIME for old time type functions 2026-07-07 23:52:53 +02:00
sys.c prctl: fix PR_SET_MM_AUXV losing the forced AT_NULL terminator 2026-08-19 19:55:05 -07:00
sysctl-test.c
sysctl.c sysctl: Negate before converting in the int read path 2026-09-29 09:25:14 +02:00
task_work.c
taskstats.c taskstats: fold the two cpumask handlers into one 2026-08-13 15:42:05 -07:00
torture.c torture: Don't leak shuffle_tmp_mask when shuffler kthread fails to start 2026-08-14 14:59:21 -07:00
tracepoint.c tracepoint: balance regfunc() on func_add() failure in tracepoint_add_func() 2026-04-14 05:17:02 -04:00
tsacct.c tsacct: skip all kernel threads 2026-01-26 19:07:13 -08:00
ucount.c binfmt_misc: correctly account pre-opened interpreters 2026-08-03 23:36:18 +02:00
uid16.c
uid16.h
umh.c fs: add umh argument to struct kernel_clone_args 2026-06-29 10:54:41 +02:00
up.c smp: Refactor remote CPU selection in smp_call_function_any() 2026-07-16 09:24:55 +02:00
user_namespace.c vfs-7.4-rc1.idmap 2026-10-19 17:57:49 -10:00
user-return-notifier.c
user.c binfmt_misc: use RCU for the handler lookup 2026-08-03 10:08:36 +02:00
utsname_sysctl.c sysctl: remove CONFIG_PROC_SYSCTL, it just mirrors CONFIG_SYSCTL 2026-08-05 15:28:23 +02:00
utsname.c uts: drop BUG_ON() in copy_utsname() 2026-09-04 12:46:45 +02:00
vhost_task.c vhost_task_create: kill unnecessary .exit_signal initialization 2026-06-10 02:17:00 -04:00
vmcore_info.c mm.git review status for linus..mm-nonmm-stable 2026-04-16 20:11:56 -07:00
watch_queue.c watch_queue: Fix note pool publication race in watch_queue_set_size() 2026-10-14 22:08:02 +02:00
watchdog_buddy.c watchdog/hardlockup: improve buddy system detection timeliness 2026-03-27 21:19:47 -07:00
watchdog_perf.c watchdog/hardlockup: simplify perf event probe and remove per-cpu dependency 2026-02-08 00:13:35 -08:00
watchdog.c watchdog/softlockup: fix softlockup typos 2026-08-03 21:10:06 -07:00
workqueue_internal.h workqueue: Show in-flight work item duration in stall diagnostics 2026-03-05 07:27:48 -10:00
workqueue.c workqueue: Fix NULL current_pwq deref in mem-reclaim helper 2026-10-07 07:57:17 -10:00