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linux-stable/fs
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Fabian Frederick 68b8e93883 jffs2: reduce stack usage in jffs2_build_xattr_subsystem() 
commit 1168f09541 upstream.

Use kcalloc() for allocation/flush of 128 pointers table to
reduce stack usage.

Function now returns -ENOMEM or 0 on success.

stackusage
Before:
./fs/jffs2/xattr.c:775  jffs2_build_xattr_subsystem     1208
dynamic,bounded

After:
./fs/jffs2/xattr.c:775  jffs2_build_xattr_subsystem     192
dynamic,bounded

Also update definition when CONFIG_JFFS2_FS_XATTR is not enabled

Tested with an MTD mount point and some user set/getfattr.

Many current target on OpenWRT also suffer from a compilation warning
(that become an error with CONFIG_WERROR) with the following output:

fs/jffs2/xattr.c: In function 'jffs2_build_xattr_subsystem':
fs/jffs2/xattr.c:887:1: error: the frame size of 1088 bytes is larger than 1024 bytes [-Werror=frame-larger-than=]
  887 | }
      | ^

Using dynamic allocation fix this compilation warning.

Fixes: c9f700f840 ("[JFFS2][XATTR] using 'delete marker' for xdatum/xref deletion")
Reported-by: Tim Gardner <tim.gardner@canonical.com>
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Ron Economos <re@w6rz.net>
Reported-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Cc: stable@vger.kernel.org
Message-Id: <20230506045612.16616-1-ansuelsmth@gmail.com>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-08-11 11:45:15 +02:00
..
9p 9p: missing chunk of "fs/9p: Don't update file type when updating file attributes" 2022-06-25 11:48:57 +02:00
adfs
affs affs: initialize fsdata in affs_truncate() 2023-02-06 07:49:38 +01:00
afs treewide: Remove uninitialized_var() usage 2023-08-11 11:45:01 +02:00
autofs autofs: fix a leak in autofs_expire_indirect() 2019-12-13 08:51:01 +01:00
befs
bfs
btrfs btrfs: unset reloc control if transaction commit fails in prepare_to_relocate() 2023-06-14 10:57:14 +02:00
cachefiles cachefiles: Handle readpage error correctly 2020-11-05 11:08:54 +01:00
ceph ceph: fix use-after-free bug for inodes when flushing capsnaps 2023-06-14 10:57:14 +02:00
cifs cifs: fix pcchunk length type in smb2_copychunk_range 2023-05-17 11:13:25 +02:00
coda
configfs configfs: fix a race in configfs_{,un}register_subsystem() 2022-03-02 11:38:13 +01:00
cramfs
crypto fscrypt: add fscrypt_symlink_getattr() for computing st_size 2021-09-22 11:47:56 +02:00
debugfs debugfs: regset32: Add Runtime PM support 2023-05-17 11:13:06 +02:00
devpts
dlm treewide: Remove uninitialized_var() usage 2023-08-11 11:45:01 +02:00
ecryptfs Revert "ecryptfs: replace BUG_ON with error handling code" 2021-05-26 11:48:34 +02:00
efivarfs efivarfs: revert "fix memory leak in efivarfs_create()" 2020-12-02 08:48:12 +01:00
efs
exofs exofs_mount(): fix leaks on failure exits 2019-12-05 09:20:32 +01:00
exportfs exportfs: fix 'passing zero to ERR_PTR()' warning 2020-01-27 14:50:02 +01:00
ext2 ext2: Check block size validity during mount 2023-05-30 12:42:08 +01:00
ext4 ext4: only check dquot_initialize_needed() when debugging 2023-06-14 10:57:14 +02:00
f2fs f2fs: fix error path handling in truncate_dnode() 2023-08-11 11:45:13 +02:00
fat treewide: Remove uninitialized_var() usage 2023-08-11 11:45:01 +02:00
freevxfs
fscache fscache: Fix cookie key hashing 2021-09-22 11:48:02 +02:00
fuse treewide: Remove uninitialized_var() usage 2023-08-11 11:45:01 +02:00
gfs2 treewide: Remove uninitialized_var() usage 2023-08-11 11:45:01 +02:00
hfs hfs: fix missing hfs_bnode_get() in __hfs_bnode_create 2023-03-11 16:31:49 +01:00
hfsplus treewide: Remove uninitialized_var() usage 2023-08-11 11:45:01 +02:00
hostfs
hpfs
hugetlbfs hugetlbfs: hugetlb_fault_mutex_hash() cleanup 2021-06-03 08:38:12 +02:00
isofs treewide: Remove uninitialized_var() usage 2023-08-11 11:45:01 +02:00
jbd2 jbd2: fix assertion 'jh->b_frozen_data == NULL' failure when journal aborted 2022-08-25 11:15:19 +02:00
jffs2 jffs2: reduce stack usage in jffs2_build_xattr_subsystem() 2023-08-11 11:45:15 +02:00
jfs fs/jfs: fix shift exponent db_agl2size negative 2023-03-11 16:31:55 +01:00
kernfs kernfs: fix use-after-free in __kernfs_remove 2022-11-03 23:52:29 +09:00
lockd lockd: don't use interval-based rebinding over TCP 2020-12-30 11:25:59 +01:00
minix minix: fix bug when opening a file with O_DIRECT 2022-04-15 14:15:03 +02:00
nfs NFSv4.1: Always send a RECLAIM_COMPLETE after establishing lease 2023-05-17 11:13:19 +02:00
nfs_common nfs_common: need lock during iterate through the list 2020-12-30 11:26:02 +01:00
nfsd NFSD: add encoding of op_recall flag for write delegation 2023-08-11 11:45:14 +02:00
nilfs2 nilfs2: prevent general protection fault in nilfs_clear_dirty_page() 2023-06-28 10:15:28 +02:00
nls
notify fsnotify: fix wrong lockdep annotations 2022-06-14 16:59:20 +02:00
ntfs ntfs: check overflow when iterating ATTR_RECORDs 2022-11-25 17:40:30 +01:00
ocfs2 treewide: Remove uninitialized_var() usage 2023-08-11 11:45:01 +02:00
omfs treewide: Remove uninitialized_var() usage 2023-08-11 11:45:01 +02:00
openpromfs
orangefs orangefs: Fix kmemleak in orangefs_prepare_debugfs_help_string() 2023-01-18 11:30:37 +01:00
overlayfs treewide: Remove uninitialized_var() usage 2023-08-11 11:45:01 +02:00
proc mm: hugetlb: proc: check for hugetlb shared PMD in /proc/PID/smaps 2023-02-22 12:47:15 +01:00
pstore pstore: Revert pmsg_lock back to a normal mutex 2023-05-17 11:13:15 +02:00
qnx4 qnx4: work around gcc false positive warning bug 2021-10-06 15:31:20 +02:00
qnx6
quota ext4: fix bug_on in __es_tree_search caused by bad quota inode 2023-01-18 11:30:53 +01:00
ramfs ramfs: fix nommu mmap with gaps in the page cache 2020-10-30 10:38:21 +01:00
reiserfs reiserfs: Add security prefix to xattr name in reiserfs_security_write() 2023-05-17 11:13:07 +02:00
romfs romfs: fix uninitialized memory leak in romfs_dev_read() 2020-08-26 10:30:59 +02:00
squashfs revert "squashfs: harden sanity check in squashfs_read_xattr_id_table" 2023-02-22 12:47:20 +01:00
sysfs fs: sysfs_emit_at: Remove PAGE_SIZE alignment check 2023-03-22 13:27:08 +01:00
sysv fs: sysv: Fix sysv_nblocks() returns wrong value 2023-01-18 11:30:08 +01:00
tracefs tracefs: Only clobber mode/uid/gid on remount if asked 2022-09-20 12:26:48 +02:00
ubifs treewide: Remove uninitialized_var() usage 2023-08-11 11:45:01 +02:00
udf treewide: Remove uninitialized_var() usage 2023-08-11 11:45:01 +02:00
ufs fs/ufs: avoid potential u32 multiplication overflow 2020-08-21 11:05:38 +02:00
xfs treewide: Remove uninitialized_var() usage 2023-08-11 11:45:01 +02:00
aio.c aio: fix mremap after fork null-deref 2023-02-22 12:47:19 +01:00
anon_inodes.c
attr.c vfs: Check the truncate maximum size in inode_newsize_ok() 2022-08-25 11:14:53 +02:00
bad_inode.c
binfmt_aout.c binfmt: Move install_exec_creds after setup_new_exec to match binfmt_elf 2023-01-18 11:30:42 +01:00
binfmt_elf.c elf: don't use MAP_FIXED_NOREPLACE for elf interpreter mappings 2021-10-06 15:31:24 +02:00
binfmt_elf_fdpic.c binfmt: Fix error return code in load_elf_fdpic_binary() 2023-01-18 11:30:42 +01:00
binfmt_em86.c
binfmt_flat.c binfmt: Move install_exec_creds after setup_new_exec to match binfmt_elf 2023-01-18 11:30:42 +01:00
binfmt_misc.c binfmt_misc: fix shift-out-of-bounds in check_special_flags 2023-01-18 11:30:33 +01:00
binfmt_script.c exec: load_script: Do not exec truncated interpreter path 2019-11-06 13:05:37 +01:00
block_dev.c block: reexpand iov_iter after read/write 2021-05-22 10:59:49 +02:00
buffer.c mm: fs: initialize fsdata passed to write_begin/write_end interface 2022-11-25 17:40:29 +01:00
char_dev.c chardev: fix error handling in cdev_device_add() 2023-01-18 11:30:27 +01:00
compat.c
compat_binfmt_elf.c
compat_ioctl.c fix compat handling of FICLONERANGE, FIDEDUPERANGE and FS_IOC_FIEMAP 2020-01-09 10:19:07 +01:00
coredump.c coredump: fix crash when umh is disabled 2020-05-14 07:57:21 +02:00
d_path.c
dax.c dax: fix cache flush on PMD-mapped pages 2022-06-14 16:59:24 +02:00
dcache.c fs, fscrypt: clear DCACHE_ENCRYPTED_NAME when unaliasing directory 2020-11-05 11:08:35 +01:00
dcookies.c
direct-io.c fs: direct-io: fix missing sdio->boundary 2021-04-14 08:22:32 +02:00
drop_caches.c fs: avoid softlockups in s_inodes iterators 2020-01-12 12:17:20 +01:00
eventfd.c eventfd: track eventfd_signal() recursion depth 2020-02-11 04:34:08 -08:00
eventpoll.c ep_create_wakeup_source(): dentry name can change under you... 2020-10-07 08:00:09 +02:00
exec.c exec: Force single empty string when argv is empty 2022-06-06 08:24:21 +02:00
fcntl.c fcntl: fix potential deadlock for &fasync_struct.fa_lock 2021-09-22 11:47:50 +02:00
fhandle.c
file.c fs: prevent out-of-bounds array speculation when closing a file descriptor 2023-03-17 08:31:41 +01:00
file_table.c fs: add fget_many() and fput_many() 2021-12-08 08:50:13 +01:00
filesystems.c fs/filesystems.c: downgrade user-reachable WARN_ONCE() to pr_warn_once() 2020-04-17 10:48:51 +02:00
fs-writeback.c writeback: fix call of incorrect macro 2023-05-17 11:13:23 +02:00
fs_pin.c
fs_struct.c
inode.c fs: fix UAF/GPF bug in nilfs_mdt_destroy 2022-10-26 13:19:16 +02:00
internal.h
ioctl.c
iomap.c iomap: fix sub-page uptodate handling 2021-05-22 10:59:50 +02:00
Kconfig
Kconfig.binfmt
libfs.c libfs: add DEFINE_SIMPLE_ATTRIBUTE_SIGNED for signed value 2023-01-18 11:30:06 +01:00
locks.c locks: print unsigned ino in /proc/locks 2020-01-09 10:19:00 +01:00
Makefile
mbcache.c mbcache: Avoid nesting of cache->c_list_lock under bit locks 2023-01-18 11:30:51 +01:00
mount.h
mpage.c
namei.c mm: fs: initialize fsdata passed to write_begin/write_end interface 2022-11-25 17:40:29 +01:00
namespace.c VFS: Fix memory leak caused by concurrently mounting fs with subtype 2022-05-15 19:41:59 +02:00
no-block.c
nsfs.c
open.c cifs_atomic_open(): fix double-put on late allocation failure 2020-03-18 07:14:21 +01:00
pipe.c pipe: increase minimum default pipe size to 2 pages 2021-08-12 13:19:43 +02:00
pnode.c pnode: terminate at peers of source 2023-01-18 11:30:40 +01:00
pnode.h
posix_acl.c
proc_namespace.c
read_write.c vfs: avoid problematic remapping requests into partial EOF block 2019-12-01 09:17:04 +01:00
readdir.c readdir: make sure to verify directory entry for legacy interfaces too 2021-04-28 13:16:50 +02:00
select.c select: Fix indefinitely sleeping task in poll_schedule_timeout() 2022-01-29 10:19:18 +01:00
seq_file.c seq_file: disallow extremely large seq buffer allocations 2021-07-20 16:16:16 +02:00
signalfd.c signalfd: use wake_up_pollfree() 2021-12-14 10:18:07 +01:00
splice.c Revert "fs: check FMODE_LSEEK to control internal pipe splicing" 2022-10-26 13:19:21 +02:00
stack.c
stat.c stat: fix inconsistency between struct stat and struct compat_stat 2022-04-27 13:39:44 +02:00
statfs.c statfs: enforce statfs[64] structure initialization 2023-05-30 12:42:11 +01:00
super.c vfs: make freeze_super abort when sync_filesystem returns error 2022-02-23 11:58:38 +01:00
sync.c
timerfd.c
userfaultfd.c userfaultfd: prevent concurrent API initialization 2021-09-22 11:48:02 +02:00
utimes.c
xattr.c fs: don't audit the capability check in simple_xattr_list() 2023-01-18 11:30:04 +01:00