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0dfc852b6f
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Steven Rostedt (Google) 0dfc852b6f eventfs: Have event files and directories default to parent uid and gid 
Dongliang reported:

  I found that in the latest version, the nodes of tracefs have been
  changed to dynamically created.

  This has caused me to encounter a problem where the gid I specified in
  the mounting parameters cannot apply to all files, as in the following
  situation:

  /data/tmp/events # mount | grep tracefs
  tracefs on /data/tmp type tracefs (rw,seclabel,relatime,gid=3012)

  gid 3012 = readtracefs

  /data/tmp # ls -lh
  total 0
  -r--r-----   1 root readtracefs 0 1970-01-01 08:00 README
  -r--r-----   1 root readtracefs 0 1970-01-01 08:00 available_events

  ums9621_1h10:/data/tmp/events # ls -lh
  total 0
  drwxr-xr-x 2 root root 0 2023-12-19 00:56 alarmtimer
  drwxr-xr-x 2 root root 0 2023-12-19 00:56 asoc

  It will prevent certain applications from accessing tracefs properly, I
  try to avoid this issue by making the following modifications.

To fix this, have the files created default to taking the ownership of
the parent dentry unless the ownership was previously set by the user.

Link: https://lore.kernel.org/linux-trace-kernel/1703063706-30539-1-git-send-email-dongliang.cui@unisoc.com/
Link: https://lore.kernel.org/linux-trace-kernel/20231220105017.1489d790@gandalf.local.home

Cc: stable@vger.kernel.org
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Hongyu Jin  <hongyu.jin@unisoc.com>
Fixes: 28e12c09f5 ("eventfs: Save ownership and mode")
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Reported-by: Dongliang Cui <cuidongliang390@gmail.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2023-12-21 09:58:02 -05:00
..
9p Bunch of small fixes: 2023-11-04 09:20:04 -10:00
adfs adfs: convert to new timestamp accessors 2023-10-18 13:26:18 +02:00
affs vfs-6.7.fsid 2023-11-07 12:11:26 -08:00
afs asm-generic updates for v6.7 2023-11-01 15:28:33 -10:00
autofs vfs-6.7.ctime 2023-10-30 09:47:13 -10:00
bcachefs bcachefs: Fix missing locking for dentry->d_parent access 2023-11-16 16:57:19 -05:00
befs vfs-6.7.fsid 2023-11-07 12:11:26 -08:00
bfs bfs: convert to new timestamp accessors 2023-10-18 13:26:19 +02:00
btrfs for-6.7-rc1-tag 2023-11-13 09:09:12 -08:00
cachefiles - Some swap cleanups from Ma Wupeng ("fix WARN_ON in add_to_avail_list") 2023-08-29 14:25:26 -07:00
ceph Two items: 2023-11-10 09:52:56 -08:00
coda coda: convert to new timestamp accessors 2023-10-18 13:26:19 +02:00
configfs configfs: convert to new timestamp accessors 2023-10-18 13:26:19 +02:00
cramfs vfs-6.7.ctime 2023-10-30 09:47:13 -10:00
crypto This update includes the following changes: 2023-11-02 16:15:30 -10:00
debugfs Driver core changes for 6.7-rc1 2023-11-03 15:15:47 -10:00
devpts devpts: convert to new timestamp accessors 2023-10-18 13:26:20 +02:00
dlm dlm: slow down filling up processing queue 2023-10-12 15:21:00 -05:00
ecryptfs ecryptfs: move ecryptfs_xattr_handlers to .rodata 2023-10-09 16:24:17 +02:00
efivarfs vfs-6.7.fsid 2023-11-07 12:11:26 -08:00
efs vfs-6.7.fsid 2023-11-07 12:11:26 -08:00
erofs vfs-6.7.fsid 2023-11-07 12:11:26 -08:00
exfat exfat: fix ctime is not updated 2023-11-03 22:24:11 +09:00
exportfs fs: fix build error with CONFIG_EXPORTFS=m or not defined 2023-10-28 16:16:19 +02:00
ext2 vfs-6.7.fsid 2023-11-07 12:11:26 -08:00
ext4 vfs-6.7.fsid 2023-11-07 12:11:26 -08:00
f2fs vfs-6.7.fsid 2023-11-07 12:11:26 -08:00
fat vfs-6.7.fsid 2023-11-07 12:11:26 -08:00
freevxfs vfs-6.7.fsid 2023-11-07 12:11:26 -08:00
fscache
fuse vfs-6.7.fsid 2023-11-07 12:11:26 -08:00
gfs2 gfs2 fixes 2023-11-07 11:54:17 -08:00
hfs vfs-6.7.ctime 2023-10-30 09:47:13 -10:00
hfsplus vfs-6.7.ctime 2023-10-30 09:47:13 -10:00
hostfs hostfs: convert to new timestamp accessors 2023-10-18 14:08:22 +02:00
hpfs hpfs: convert to new timestamp accessors 2023-10-18 14:08:22 +02:00
hugetlbfs vfs-6.7.fsid 2023-11-07 12:11:26 -08:00
iomap Many singleton patches against the MM code. The patch series which are 2023-11-02 19:38:47 -10:00
isofs isofs: convert to new timestamp accessors 2023-10-18 14:08:22 +02:00
jbd2 Many singleton patches against the MM code. The patch series which are 2023-11-02 19:38:47 -10:00
jffs2 vfs-6.7.fsid 2023-11-07 12:11:26 -08:00
jfs vfs-6.7.fsid 2023-11-07 12:11:26 -08:00
kernfs Driver core changes for 6.7-rc1 2023-11-03 15:15:47 -10:00
lockd SUNRPC: change how svc threads are asked to exit. 2023-10-16 12:44:04 -04:00
minix minix: convert to new timestamp accessors 2023-10-18 14:08:23 +02:00
netfs netfs: Only call folio_start_fscache() one time for each folio 2023-09-18 12:03:46 -07:00
nfs NFS client updates for Linux 6.7 2023-11-08 13:39:16 -08:00
nfs_common
nfsd nfsd-6.7 fixes: 2023-11-18 11:23:32 -08:00
nilfs2 Many singleton patches against the MM code. The patch series which are 2023-11-02 19:38:47 -10:00
nls nls: Hide new NLS_UCS2_UTILS 2023-08-31 12:07:34 -05:00
notify vfs-6.7.fsid 2023-11-07 12:11:26 -08:00
ntfs vfs-6.7.fsid 2023-11-07 12:11:26 -08:00
ntfs3 vfs-6.7.fsid 2023-11-07 12:11:26 -08:00
ocfs2 As usual, lots of singleton and doubleton patches all over the tree and 2023-11-02 20:53:31 -10:00
omfs omfs: convert to new timestamp accessors 2023-10-18 14:08:25 +02:00
openpromfs openpromfs: convert to new timestamp accessors 2023-10-18 14:08:25 +02:00
orangefs vfs-6.7.ctime 2023-10-30 09:47:13 -10:00
overlayfs ovl: fix memory leak in ovl_parse_param() 2023-11-14 08:09:36 +02:00
proc As usual, lots of singleton and doubleton patches all over the tree and 2023-11-02 20:53:31 -10:00
pstore pstore updates for v6.7-rc1 2023-10-30 19:26:39 -10:00
qnx4 qnx4: convert to new timestamp accessors 2023-10-18 14:08:26 +02:00
qnx6 qnx6: convert to new timestamp accessors 2023-10-18 14:08:26 +02:00
quota Many singleton patches against the MM code. The patch series which are 2023-11-02 19:38:47 -10:00
ramfs ramfs: convert to new timestamp accessors 2023-10-18 14:08:26 +02:00
reiserfs Many singleton patches against the MM code. The patch series which are 2023-11-02 19:38:47 -10:00
romfs vfs-6.7.ctime 2023-10-30 09:47:13 -10:00
smb cifs: fix lock ordering while disabling multichannel 2023-11-14 11:39:35 -06:00
squashfs vfs-6.7.fsid 2023-11-07 12:11:26 -08:00
sysfs kernfs: sysfs: support custom llseek method for sysfs entries 2023-10-05 13:42:11 +02:00
sysv sysv: convert to new timestamp accessors 2023-10-18 14:08:28 +02:00
tracefs eventfs: Have event files and directories default to parent uid and gid 2023-12-21 09:58:02 -05:00
ubifs This pull request contains updates for UBI and UBIFS 2023-11-05 08:28:32 -10:00
udf \n 2023-11-02 08:19:51 -10:00
ufs vfs-6.7.fsid 2023-11-07 12:11:26 -08:00
unicode
vboxsf vboxsf: convert to new timestamp accessors 2023-10-18 14:08:29 +02:00
verity fsverity: skip PKCS#7 parser when keyring is empty 2023-08-20 10:33:43 -07:00
xfs xfs: recovery should not clear di_flushiter unconditionally 2023-11-13 09:11:41 +05:30
zonefs zonefs: convert to new timestamp accessors 2023-10-18 14:08:29 +02:00
aio.c aio: Annotate struct kioctx_table with __counted_by 2023-09-20 14:22:01 +02:00
anon_inodes.c treewide: mark stuff as __ro_after_init 2023-10-18 14:43:23 -07:00
attr.c fs: convert core infrastructure to new timestamp accessors 2023-10-18 13:26:15 +02:00
bad_inode.c fs: convert core infrastructure to new timestamp accessors 2023-10-18 13:26:15 +02:00
binfmt_elf_fdpic.c execve updates for v6.7-rc1 2023-10-30 19:28:19 -10:00
binfmt_elf_test.c
binfmt_elf.c binfmt_elf: Only report padzero() errors when PROT_WRITE 2023-10-03 19:48:44 -07:00
binfmt_flat.c
binfmt_misc.c execve updates for v6.7-rc1 2023-10-30 19:28:19 -10:00
binfmt_script.c
buffer.c As usual, lots of singleton and doubleton patches all over the tree and 2023-11-02 20:53:31 -10:00
char_dev.c As usual, lots of singleton and doubleton patches all over the tree and 2023-11-02 20:53:31 -10:00
compat_binfmt_elf.c
coredump.c
d_path.c
dax.c mm: convert DAX lock/unlock page to lock/unlock folio 2023-10-04 10:32:20 -07:00
dcache.c As usual, lots of singleton and doubleton patches all over the tree and 2023-11-02 20:53:31 -10:00
direct-io.c treewide: mark stuff as __ro_after_init 2023-10-18 14:43:23 -07:00
drop_caches.c fs: drop_caches: draining pages before dropping caches 2023-08-18 10:12:11 -07:00
eventfd.c eventfd: prevent underflow for eventfd semaphores 2023-07-11 11:41:34 +02:00
eventpoll.c treewide: mark stuff as __ro_after_init 2023-10-18 14:43:23 -07:00
exec.c mm/mremap: allow moves within the same VMA for stack moves 2023-10-04 10:32:20 -07:00
fcntl.c treewide: mark stuff as __ro_after_init 2023-10-18 14:43:23 -07:00
fhandle.c exportfs: add helpers to check if filesystem can encode/decode file handles 2023-10-24 17:57:45 +02:00
file_table.c As usual, lots of singleton and doubleton patches all over the tree and 2023-11-02 20:53:31 -10:00
file.c file, i915: fix file reference for mmap_singleton() 2023-10-25 22:17:04 +02:00
filesystems.c
fs_context.c fs: factor out vfs_parse_monolithic_sep() helper 2023-10-12 18:53:36 +03:00
fs_parser.c
fs_pin.c
fs_struct.c kill do_each_thread() 2023-08-21 13:46:25 -07:00
fs_types.c
fs-writeback.c vfs-6.7.misc 2023-10-30 09:14:19 -10:00
fsopen.c fsconfig: ensure that dirfd is set to aux 2023-09-22 14:09:06 +02:00
init.c fs: add a new SB_I_NOUMASK flag 2023-10-19 11:02:47 +02:00
inode.c As usual, lots of singleton and doubleton patches all over the tree and 2023-11-02 20:53:31 -10:00
internal.h fs: store real path instead of fake path in backing file f_path 2023-10-19 11:03:15 +02:00
ioctl.c v6.6-vfs.super 2023-08-28 11:04:18 -07:00
Kconfig asm-generic updates for v6.7 2023-11-01 15:28:33 -10:00
Kconfig.binfmt riscv: support the elf-fdpic binfmt loader 2023-08-23 14:17:43 -07:00
kernel_read_file.c fs: Fix kernel-doc warnings 2023-08-19 12:12:12 +02:00
libfs.c vfs-6.7.fsid 2023-11-07 12:11:26 -08:00
locks.c As usual, lots of singleton and doubleton patches all over the tree and 2023-11-02 20:53:31 -10:00
Makefile bcachefs: Initial commit 2023-10-22 17:08:07 -04:00
mbcache.c mbcache: dynamically allocate the mbcache shrinker 2023-10-04 10:32:25 -07:00
mnt_idmapping.c fs: export mnt_idmap_get/mnt_idmap_put 2023-11-03 23:28:33 +01:00
mount.h
mpage.c buffer: remove folio_create_empty_buffers() 2023-10-25 16:47:10 -07:00
namei.c vfs-6.7.misc 2023-10-30 09:14:19 -10:00
namespace.c As usual, lots of singleton and doubleton patches all over the tree and 2023-11-02 20:53:31 -10:00
nsfs.c fs: convert core infrastructure to new timestamp accessors 2023-10-18 13:26:15 +02:00
open.c fs: store real path instead of fake path in backing file f_path 2023-10-19 11:03:15 +02:00
pipe.c As usual, lots of singleton and doubleton patches all over the tree and 2023-11-02 20:53:31 -10:00
pnode.c
pnode.h
posix_acl.c fs: convert to ctime accessor functions 2023-07-13 10:28:04 +02:00
proc_namespace.c
read_write.c fs: Fix one kernel-doc comment 2023-08-15 08:32:45 +02:00
readdir.c vfs: get rid of old '->iterate' directory operation 2023-08-06 15:08:35 +02:00
remap_range.c
select.c
seq_file.c
signalfd.c
splice.c - Some swap cleanups from Ma Wupeng ("fix WARN_ON in add_to_avail_list") 2023-08-29 14:25:26 -07:00
stack.c fs: convert core infrastructure to new timestamp accessors 2023-10-18 13:26:15 +02:00
stat.c fs: convert core infrastructure to new timestamp accessors 2023-10-18 13:26:15 +02:00
statfs.c
super.c overlayfs update for 6.7-rc1 2023-11-07 11:46:31 -08:00
sync.c
sysctls.c
timerfd.c
userfaultfd.c As usual, lots of singleton and doubleton patches all over the tree and 2023-11-02 20:53:31 -10:00
utimes.c
xattr.c xattr: make the xattr array itself const 2023-10-09 16:24:16 +02:00