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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
..
9p Provide stable parent and name to ->d_revalidate() instances 2025-01-30 09:13:35 -08:00
adfs Merge patch series "adfs, affs, befs, hfs, hfsplus: convert to new mount api" 2024-10-08 14:41:53 +02:00
affs Merge patch series "adfs, affs, befs, hfs, hfsplus: convert to new mount api" 2024-10-08 14:41:53 +02:00
afs Provide stable parent and name to ->d_revalidate() instances 2025-01-30 09:13:35 -08:00
autofs autofs: fix thinko in validate_dev_ioctl() 2024-10-28 13:16:56 +01:00
bcachefs bcachefs: Reuse transaction 2025-02-12 18:44:50 -05:00
befs befs: convert befs to use the new mount api 2024-09-18 11:44:43 +02:00
bfs fs: Convert aops->write_begin to take a folio 2024-08-07 11:33:21 +02:00
btrfs for-6.14-rc2-tag 2025-02-13 12:06:29 -08:00
cachefiles treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
ceph A fix for a memory leak from Antoine (marked for stable) and two 2025-01-31 10:30:34 -08:00
coda Provide stable parent and name to ->d_revalidate() instances 2025-01-30 09:13:35 -08:00
configfs configfs: improve item creation performance 2024-11-14 07:45:20 +01:00
cramfs vfs-6.11.module.description 2024-07-15 11:14:59 -07:00
crypto fscrypt_d_revalidate(): use stable parent inode passed by caller 2025-01-27 19:25:23 -05:00
debugfs debugfs: Fix the missing initializations in __debugfs_file_get() 2025-01-30 08:22:31 +01:00
devpts treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
dlm dlm: return -ENOENT if no comm was found 2024-12-19 13:11:24 -06:00
ecryptfs Pass parent directory inode and expected name to ->d_revalidate() 2025-01-27 19:25:23 -05:00
efivarfs efivarfs: add variable resync after hibernation 2025-01-22 13:28:17 +01:00
efs efs: fix the efs new mount api implementation 2024-10-15 15:58:36 +02:00
erofs lockref: remove count argument of lockref_init 2025-02-07 10:27:25 +01:00
exfat Provide stable parent and name to ->d_revalidate() instances 2025-01-30 09:13:35 -08:00
exportfs fs: prepare for "explicit connectable" file handles 2024-11-15 11:34:57 +01:00
ext2 vfs-6.12.file 2024-09-16 09:14:02 +02:00
ext4 Provide stable parent and name to ->d_revalidate() instances 2025-01-30 09:13:35 -08:00
f2fs f2fs-for-6.14-rc1 2025-01-27 20:58:58 -08:00
fat vfat_revalidate{,_ci}(): use stable parent inode passed by caller 2025-01-27 19:25:24 -05:00
freevxfs freevxfs: Replace one-element array with flexible array member 2024-11-06 10:42:06 +01:00
fuse Provide stable parent and name to ->d_revalidate() instances 2025-01-30 09:13:35 -08:00
gfs2 lockref: remove count argument of lockref_init 2025-02-07 10:27:25 +01:00
hfs Provide stable parent and name to ->d_revalidate() instances 2025-01-30 09:13:35 -08:00
hfsplus vfs-6.13.misc 2024-11-18 09:35:30 -08:00
hostfs hostfs __dentry_name() fix 2025-01-31 09:33:54 -08:00
hpfs hpfs: convert hpfs to use the new mount api 2024-10-08 14:41:53 +02:00
hugetlbfs mm/hugetlb: rename avoid_reserve to cow_from_owner 2025-01-25 20:22:30 -08:00
iomap The various patchsets are summarized below. Plus of course many 2025-01-26 18:36:23 -08:00
isofs isofs: Partially convert zisofs_read_folio to use a folio 2024-12-05 13:52:37 +01:00
jbd2 CRC updates for 6.14 2025-01-22 19:55:08 -08:00
jffs2 jffs2: Fix rtime decompressor 2024-12-05 12:31:40 +01:00
jfs Pass parent directory inode and expected name to ->d_revalidate() 2025-01-27 19:25:23 -05:00
kernfs assorted stuff for this merge window 2025-02-01 15:07:56 -08:00
lockd treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
minix buffer: Convert __block_write_begin() to take a folio 2024-08-07 11:33:36 +02:00
netfs netfs: Fix setting NETFS_RREQ_ALL_QUEUED to be after all subreqs queued 2025-02-13 16:00:48 +01:00
nfs Provide stable parent and name to ->d_revalidate() instances 2025-01-30 09:13:35 -08:00
nfs_common nfs: fix incorrect error handling in LOCALIO 2025-01-21 11:34:43 -05:00
nfsd nfsd-6.14 fixes: 2025-02-10 13:11:24 -08:00
nilfs2 nilfs2: fix possible int overflows in nilfs_fiemap() 2025-02-01 03:53:26 -08:00
nls move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
notify fsnotify: use accessor to set FMODE_NONOTIFY_* 2025-02-07 10:27:26 +01:00
ntfs3 fs/ntfs3: Unify inode corruption marking with _ntfs_bad_inode() 2024-12-30 11:37:40 +03:00
ocfs2 ocfs2: fix incorrect CPU endianness conversion causing mount failure 2025-02-01 03:53:24 -08:00
omfs fs: Convert aops->write_begin to take a folio 2024-08-07 11:33:21 +02:00
openpromfs openpromfs: add missing MODULE_DESCRIPTION() macro 2024-06-20 09:46:01 +02:00
orangefs orangefs: fix a oob in orangefs_debug_write 2025-01-31 09:40:31 -08:00
overlayfs assorted stuff for this merge window 2025-02-01 15:07:56 -08:00
proc Provide stable parent and name to ->d_revalidate() instances 2025-01-30 09:13:35 -08:00
pstore pstore updates for v6.14-rc1 2025-01-20 13:37:14 -08:00
qnx4 qnx4: add MODULE_DESCRIPTION() 2024-05-28 11:52:53 +02:00
qnx6 fs/qnx6: Fix building with GCC 15 2024-12-03 10:40:36 +01:00
quota treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
ramfs mm: switch mm->get_unmapped_area() to a flag 2024-04-25 20:56:25 -07:00
romfs romfs: fix romfs_read_folio() 2024-08-21 22:32:58 +02:00
smb cifs: pick channels for individual subrequests 2025-02-11 18:51:07 -06:00
squashfs squashfs: convert squashfs_fill_page() to take a folio 2025-01-24 22:47:22 -08:00
sysfs sysfs: constify bin_attribute argument of sysfs_bin_attr_simple_read() 2025-01-09 10:43:58 +01:00
sysv buffer: Convert __block_write_begin() to take a folio 2024-08-07 11:33:36 +02:00
tests execve: Move KUnit tests to tests/ subdirectory 2024-07-22 18:25:47 -07:00
tracefs Pass parent directory inode and expected name to ->d_revalidate() 2025-01-27 19:25:23 -05:00
ubifs ubifs: skip dumping tnc tree when zroot is null 2025-01-18 15:31:35 +01:00
udf udf: Verify inode link counts before performing rename 2024-11-26 22:54:24 +01:00
ufs ufs: ufs_sb_private_info: remove unused s_{2,3}apb fields 2024-11-12 19:02:12 -05:00
unicode Revert "unicode: Don't special case ignorable code points" 2024-12-11 14:11:23 -08:00
vboxsf vboxsf: fix building with GCC 15 2025-02-07 10:27:24 +01:00
verity treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
xfs xfs bug fixes 6.14-rc2 2025-02-03 08:51:24 -08:00
zonefs zonefs fixes for 6.12-rc2 2024-10-02 12:02:15 -07:00
aio.c treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
anon_inodes.c add a string-to-qstr constructor 2025-01-27 19:25:45 -05:00
attr.c fs: handle delegated timestamps in setattr_copy_mgtime 2024-10-10 10:20:51 +02:00
backing-file.c tree-wide: s/revert_creds_light()/revert_creds()/g 2024-12-02 11:25:09 +01:00
bad_inode.c
binfmt_elf.c fs: don't block write during exec on pre-content watched files 2024-12-11 17:45:18 +01:00
binfmt_elf_fdpic.c fs: don't block write during exec on pre-content watched files 2024-12-11 17:45:18 +01:00
binfmt_flat.c binfmt_flat: Fix integer overflow bug on 32 bit systems 2025-01-10 08:49:05 -08:00
binfmt_misc.c execve updates for v6.14-rc1 2025-01-20 13:27:58 -08:00
binfmt_script.c fs: binfmt: add missing MODULE_DESCRIPTION() macros 2024-05-28 12:06:51 +02:00
bpf_fs_kfuncs.c bpf: Add kfunc bpf_get_dentry_xattr() to read xattr from dentry 2024-08-07 11:26:54 -07:00
buffer.c - The series "zram: optimal post-processing target selection" from 2024-11-23 09:58:07 -08:00
char_dev.c fs: Reorganize kerneldoc parameter names 2024-10-22 11:16:57 +02:00
compat_binfmt_elf.c binfmt_elf: Wire up AT_HWCAP3 at AT_HWCAP4 2024-10-17 18:38:49 +01:00
coredump.c treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
d_path.c
dax.c fsdax: dax_unshare_iter needs to copy entire blocks 2024-10-07 13:51:47 +02:00
dcache.c vfs-6.14-rc2.fixes 2025-02-07 09:22:31 -08:00
direct-io.c fs/direct-io: Remove linux/prefetch.h include 2024-08-19 13:45:02 +02:00
drop_caches.c sysctl: treewide: constify the ctl_table argument of proc_handlers 2024-07-24 20:59:29 +02:00
eventfd.c fdget(), trivial conversions 2024-11-03 01:28:06 -05:00
eventpoll.c treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
exec.c treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
fcntl.c fs: get rid of __FMODE_NONOTIFY kludge 2024-12-09 11:34:29 +01:00
fhandle.c exportfs: add permission method 2024-12-17 09:16:11 +01:00
file.c vfs-6.14-rc1.misc 2025-01-20 09:40:49 -08:00
file_table.c fsnotify: disable pre-content and permission events by default 2025-02-07 10:27:27 +01:00
filesystems.c
fs-writeback.c Merge patch series "two little writeback cleanups v2" 2024-11-13 14:08:34 +01:00
fs_context.c fs: fc_log replace magic number 7 with ARRAY_SIZE() 2024-12-22 11:29:52 +01:00
fs_parser.c bcachefs: add support for true/false & yes/no in bool-type options 2024-12-21 01:36:17 -05:00
fs_pin.c
fs_struct.c
fs_types.c
fsopen.c fdget(), more trivial conversions 2024-11-03 01:28:06 -05:00
init.c
inode.c treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
internal.h sanitize struct filename and lookup flags handling in statx 2024-11-18 14:54:10 -08:00
ioctl.c fdget(), trivial conversions 2024-11-03 01:28:06 -05:00
Kconfig reiserfs: The last commit 2024-10-21 16:29:38 +02:00
Kconfig.binfmt exec: Add KUnit test for bprm_stack_limits() 2024-06-19 13:13:55 -07:00
kernel_read_file.c fdget(), trivial conversions 2024-11-03 01:28:06 -05:00
libfs.c Provide stable parent and name to ->d_revalidate() instances 2025-01-30 09:13:35 -08:00
locks.c treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
Makefile reiserfs: The last commit 2024-10-21 16:29:38 +02:00
mbcache.c
mnt_idmapping.c fuse update for 6.12 2024-09-24 15:29:42 -07:00
mount.h fs: cache first and last mount 2025-01-09 16:58:54 +01:00
mpage.c fs/writeback: convert wbc_account_cgroup_owner to take a folio 2024-10-28 13:26:54 +01:00
namei.c Provide stable parent and name to ->d_revalidate() instances 2025-01-30 09:13:35 -08:00
namespace.c fs: fix adding security options to statmount.mnt_opt 2025-02-07 10:27:26 +01:00
nsfs.c fs: lockless mntns lookup for nsfs 2025-01-09 16:58:52 +01:00
open.c fsnotify: disable notification by default for all pseudo files 2025-02-07 10:27:26 +01:00
pidfs.c pidfs: improve ioctl handling 2025-02-07 10:27:28 +01:00
pipe.c fsnotify: disable notification by default for all pseudo files 2025-02-07 10:27:26 +01:00
pnode.c fs: Fix grammar and spelling in propagate_umount() 2024-12-22 11:29:52 +01:00
pnode.h
posix_acl.c acl: Annotate struct posix_acl with __counted_by() 2024-10-22 11:16:59 +02:00
proc_namespace.c fs: rename show_mnt_opts -> show_vfsmnt_opts 2024-06-28 14:36:43 +02:00
read_write.c the bulk of struct fd memory safety stuff 2024-11-18 12:24:06 -08:00
readdir.c introduce "fd_pos" class, convert fdget_pos() users to it. 2024-11-03 01:28:06 -05:00
remap_range.c convert vfs_dedupe_file_range(). 2024-11-03 01:28:07 -05:00
select.c select: Fix unbalanced user_access_end() 2025-01-13 16:24:16 +01:00
seq_file.c fs: Reorganize kerneldoc parameter names 2024-10-22 11:16:57 +02:00
signalfd.c fdget(), trivial conversions 2024-11-03 01:28:06 -05:00
splice.c mm: alloc_pages_bulk: rename API 2025-01-25 20:22:31 -08:00
stack.c
stat.c fs/stat.c: avoid harmless garbage value problem in vfs_statx_path() 2025-02-07 10:27:24 +01:00
statfs.c fdget_raw() users: switch to CLASS(fd_raw) 2024-11-03 01:28:06 -05:00
super.c lib/list_debug.c: add object information in case of invalid object 2025-01-25 20:22:23 -08:00
sync.c fdget(), trivial conversions 2024-11-03 01:28:06 -05:00
sysctls.c treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
timerfd.c A rather large update for timekeeping and timers: 2024-11-19 16:35:06 -08:00
userfaultfd.c treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
utimes.c fdget(), more trivial conversions 2024-11-03 01:28:06 -05:00
xattr.c xattr: remove redundant check on variable err 2024-11-06 13:00:01 -05:00