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linux/fs
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Filipe Manana 24c06f69d0 btrfs: fix extent buffer leak on failure to copy root 
commit 72c9925f87 upstream.

At btrfs_copy_root(), if the call to btrfs_inc_ref() fails we end up
returning without unlocking and releasing our reference on the extent
buffer named "cow" we previously allocated with btrfs_alloc_tree_block().

So fix that by unlocking the extent buffer and dropping our reference on
it before returning.

Fixes: be20aa9dba ("Btrfs: Add mount option to turn off data cow")
CC: stable@vger.kernel.org # 4.4+
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-05-16 10:38:36 +09:00
..
9p
9P: Cast to loff_t before multiplying
2023-05-16 09:45:39 +09:00
adfs
fs/adfs: super: fix use-after-free bug
2023-05-15 14:09:05 +09:00
affs
affs: fix basic permission bits to actually work
2023-05-16 09:05:59 +09:00
afs
afs: Fix large file support
2023-05-15 16:47:08 +09:00
autofs4
autofs: fix a leak in autofs_expire_indirect()
2023-05-15 16:08:48 +09:00
befs
Merge tag 'befs-v4.9-rc1' of git://github.com/luisbg/linux-befs
2016-10-15 12:09:13 -07:00
bfs
bfs: add sanity check at bfs_fill_super()
2023-05-15 09:57:32 +09:00
btrfs
btrfs: fix extent buffer leak on failure to copy root
2023-05-16 10:38:36 +09:00
cachefiles
cachefiles: Handle readpage error correctly
2023-05-16 09:45:46 +09:00
ceph
ceph: fix race in concurrent __ceph_remove_cap invocations
2023-05-16 09:59:24 +09:00
cifs
cifs: Set CIFS_MOUNT_USE_PREFIX_PATH flag on setting cifs_sb->prepath.
2023-05-16 10:36:41 +09:00
coda
coda: add error handling for fget
2023-05-15 14:09:19 +09:00
configfs
configfs: fix config_item refcnt leak in configfs_rmdir()
2023-05-15 17:28:38 +09:00
cramfs
Cramfs: fix abad comparison when wrap-arounds occur
2023-05-15 09:23:12 +09:00
crypto
fscrypt: return -EXDEV for incompatible rename or link into encrypted dir
2023-05-16 09:44:26 +09:00
debugfs
debugfs: fix use-after-free on symlink traversal
2023-05-15 12:38:42 +09:00
devpts
fs/devpts: always delete dcache dentry-s in dput()
2023-05-15 12:05:59 +09:00
dlm
fs: dlm: fix configfs memory leak
2023-05-16 09:39:44 +09:00
ecryptfs
ecryptfs: Fix up bad backport of fe2e082f5d
2023-05-15 17:01:52 +09:00
efivarfs
efivarfs: revert "fix memory leak in efivarfs_create()"
2023-05-16 09:50:21 +09:00
efs
…
exfat
Amlogic: sync the code from mainline. [1/1]
2020-02-04 13:48:58 +09:00
exofs
fs/exofs: fix potential memory leak in mount option parsing
2023-05-15 09:51:17 +09:00
exportfs
exportfs: fix 'passing zero to ERR_PTR()' warning
2023-05-15 16:42:45 +09:00
ext2
ext2: fix missing percpu_counter_inc
2023-05-16 08:48:08 +09:00
ext4
ext4: fix superblock checksum failure when setting password salt
2023-05-16 10:26:40 +09:00
f2fs
Fix mismerge
2023-05-16 09:46:32 +09:00
fat
fat: don't allow to mount if the FAT length == 0
2023-05-15 17:33:02 +09:00
freevxfs
…
fscache
fscache: fix race between enablement and dropping of object
2023-05-15 10:31:45 +09:00
fuse
UPSTREAM: locking/atomic, kref: Add KREF_INIT()
2023-05-16 10:25:44 +09:00
gfs2
gfs2: check for empty rgrp tree in gfs2_ri_update
2023-05-16 09:51:38 +09:00
hfs
fs/hfs/extent.c: fix array out of bounds read of array extent
2023-05-15 15:18:29 +09:00
hfsplus
hfsplus: fix crash and filesystem corruption when deleting files
2023-05-15 17:14:59 +09:00
hostfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2016-10-10 20:16:43 -07:00
hpfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2016-10-10 20:16:43 -07:00
hugetlbfs
mm: hugetlbfs: fix cannot migrate the fallocated HugeTLB page
2023-05-16 10:34:21 +09:00
isofs
isofs: release buffer head before return
2023-05-16 10:37:43 +09:00
jbd2
jbd2: abort journal if free a async write error metadata buffer
2023-05-16 08:57:16 +09:00
jffs2
jffs2: fix use after free in jffs2_sum_write_data()
2023-05-16 10:37:29 +09:00
jfs
fs/jfs: fix potential integer overflow on shift of a int
2023-05-16 10:37:27 +09:00
kernfs
kernfs: Fix range checks in kernfs_get_target_path
2023-05-15 15:09:25 +09:00
lockd
lockd: don't use interval-based rebinding over TCP
2023-05-16 09:57:34 +09:00
logfs
ANDROID: fs: logfs: fix filler function type
2018-03-02 13:27:29 -08:00
minix
fs/minix: reject too-large maximum file size
2023-05-16 08:47:27 +09:00
ncpfs
ncpfs: fix build warning of strncpy
2023-05-15 11:49:44 +09:00
nfs
NFS: nfs_igrab_and_active must first reference the superblock
2023-05-16 10:26:39 +09:00
nfs_common
nfs_common: need lock during iterate through the list
2023-05-16 09:58:02 +09:00
nfsd
nfsd4: readdirplus shouldn't return parent of export
2023-05-16 10:26:47 +09:00
nilfs2
nilfs2: fix null pointer dereference at nilfs_segctor_do_construct()
2023-05-15 17:32:23 +09:00
nls
…
notify
fanotify: fix handling of events on child sub-directory
2023-05-15 11:16:44 +09:00
ntfs
ntfs: check for valid standard information attribute
2023-05-16 10:36:36 +09:00
ocfs2
ocfs2: fix a use after free on error
2023-05-16 10:38:10 +09:00
omfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2016-10-10 20:16:43 -07:00
openpromfs
…
orangefs
help_next should increase position index
2023-05-15 16:59:58 +09:00
overlayfs
ovl: skip getxattr of security labels
2023-05-16 10:35:54 +09:00
proc
proc: don't allow async path resolution of /proc/self components
2023-05-16 09:50:00 +09:00
pstore
pstore/ram: Write new dumps to start of recycled zones
2023-05-15 16:32:06 +09:00
qnx4
…
qnx6
…
quota
quota: Don't overflow quota file offsets
2023-05-16 10:00:31 +09:00
ramfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2016-10-10 20:16:43 -07:00
reiserfs
reiserfs: add check for an invalid ih_entry_count
2023-05-16 10:00:24 +09:00
romfs
romfs: fix uninitialized memory leak in romfs_dev_read()
2023-05-16 08:54:39 +09:00
sdcardfs
sdcardfs: revert because compile fail [1/1]
2020-12-17 17:32:09 +09:00
squashfs
squashfs: add more sanity checks in xattr id lookup
2023-05-16 10:35:50 +09:00
sysfs
scsi: sysfs: Introduce sysfs_{un,}break_active_protection()
2023-05-12 17:16:51 +09:00
sysv
sysv: return 'err' instead of 0 in __sysv_write_inode
2023-05-15 10:31:02 +09:00
tracefs
…
ubifs
ubifs: wbuf: Don't leak kernel memory to flash
2023-05-16 10:26:05 +09:00
udf
udf: Avoid accessing uninitialized data on failed inode read
2023-05-16 09:39:55 +09:00
ufs
fs/ufs: avoid potential u32 multiplication overflow
2023-05-16 08:48:37 +09:00
xfs
xfs: revert "xfs: fix rmap key and record comparison functions"
2023-05-16 09:49:20 +09:00
aio.c
aio: fix spectre gadget in lookup_ioctx
2023-05-15 10:36:26 +09:00
anon_inodes.c
…
attr.c
ANDROID: vfs: Add permission2 for filesystems with per mount permissions
2017-01-31 10:47:22 -08:00
bad_inode.c
bad_inode: add missing i_op initializers
2017-01-09 08:32:24 +01:00
binfmt_aout.c
…
binfmt_elf_fdpic.c
…
binfmt_elf.c
fs/binfmt_elf.c: allocate initialized memory in fill_thread_core_info()
2023-05-15 17:30:19 +09:00
binfmt_em86.c
…
binfmt_flat.c
fs/binfmt_flat.c: make load_flat_shared_library() work
2023-05-15 13:55:59 +09:00
binfmt_misc.c
fs/binfmt_misc.c: do not allow offset overflow
2018-06-26 08:08:09 +08:00
binfmt_script.c
exec: load_script: Do not exec truncated interpreter path
2023-05-15 14:54:58 +09:00
block_dev.c
bdev: Reduce time holding bd_mutex in sync in blkdev_close()
2023-05-16 09:16:10 +09:00
buffer.c
fs: Don't invalidate page buffers in block_write_full_page()
2023-05-16 09:45:07 +09:00
char_dev.c
chardev: add helper function to register char devs with a struct device
2023-05-15 17:27:22 +09:00
compat_binfmt_elf.c
binfmt_elf: compat: avoid unused function warning
2018-02-25 11:05:55 +01:00
compat_ioctl.c
fix compat handling of FICLONERANGE, FIDEDUPERANGE and FS_IOC_FIEMAP
2023-05-15 16:30:53 +09:00
compat.c
…
coredump.c
Merge 4.9.36 into android-4.9
2017-07-05 16:18:14 +02:00
dax.c
fs/dax.c: fix inefficiency in dax_writeback_mapping_range()
2018-02-28 10:18:33 +01:00
dcache.c
Hang/soft lockup in d_invalidate with simultaneous calls
2023-05-15 12:07:04 +09:00
dcookies.c
…
direct-io.c
direct-io: allow direct writes to empty inodes
2023-05-15 11:45:37 +09:00
drop_caches.c
fs/drop_caches.c: avoid softlockups in drop_pagecache_sb()
2023-05-15 11:50:41 +09:00
eventfd.c
…
eventpoll.c
ep_create_wakeup_source(): dentry name can change under you...
2023-05-16 09:23:53 +09:00
exec.c
exit/exec: Seperate mm_release()
2023-05-16 10:33:11 +09:00
fcntl.c
fs/fcntl: f_setown, avoid undefined behaviour
2018-01-31 12:55:52 +01:00
fhandle.c
…
file_table.c
…
file.c
fix multiplication overflow in copy_fdtable()
2023-05-15 17:28:32 +09:00
filesystems.c
…
fs_pin.c
…
fs_struct.c
ANDROID: fs: Export free_fs_struct and set_fs_pwd
2017-01-31 15:46:26 -08:00
fs-writeback.c
memcg: fix a crash in wb_workfn when a device disappears
2023-05-16 10:35:42 +09:00
inode.c
futex: Fix inode life-time issue
2023-05-15 17:11:10 +09:00
internal.h
Merge 4.9.51 into android-4.9
2017-09-20 09:59:51 +02:00
ioctl.c
…
iomap.c
iomap: fix integer truncation issues in the zeroing and dirtying helpers
2017-09-20 08:19:59 +02:00
Kconfig
fs: add exfat file system support
2017-09-26 00:32:37 -07:00
Kconfig.binfmt
…
libfs.c
libfs: fix error cast of negative value in simple_attr_write()
2023-05-16 09:49:21 +09:00
locks.c
locks: print unsigned ino in /proc/locks
2023-05-15 16:30:25 +09:00
Makefile
fs: add exfat file system support
2017-09-26 00:32:37 -07:00
mbcache.c
mbcache: initialize entry->e_referenced in mb_cache_entry_create()
2018-02-22 15:43:48 +01:00
mount.h
mnt: In propgate_umount handle visiting mounts in any order
2017-07-21 07:42:22 +02:00
mpage.c
mm: optimize stack usage for functions [1/1]
2018-12-17 17:21:59 +08:00
namei.c
namei: only return -ECHILD from follow_dotdot_rcu()
2023-05-15 17:02:00 +09:00
namespace.c
fs/namespace.c: fix mountpoint reference counter race
2023-05-15 17:23:05 +09:00
no-block.c
…
nsfs.c
nsfs: mark dentry with DCACHE_RCUACCESS
2018-02-17 13:21:15 +01:00
open.c
cifs_atomic_open(): fix double-put on late allocation failure
2023-05-15 17:09:26 +09:00
pipe.c
fs: prevent page refcount overflow in pipe_buf_get
2023-05-15 13:40:35 +09:00
pnode.c
propagate_one(): mnt_set_mountpoint() needs mount_lock
2023-05-15 17:24:29 +09:00
pnode.h
mnt: Tuck mounts under others instead of creating shadow/side mounts.
2017-03-15 02:21:16 +00:00
posix_acl.c
tmpfs: clear S_ISGID when setting posix ACLs
2017-01-26 08:24:37 +01:00
proc_namespace.c
ANDROID: vfs: Allow filesystems to access their private mount data
2017-01-31 10:47:20 -08:00
read_write.c
fs: stream_open - opener for stream-like files so that read and write can run simultaneously without deadlock
2023-05-15 13:41:13 +09:00
readdir.c
filldir[64]: remove WARN_ON_ONCE() for bad directory entries
2023-05-15 16:21:37 +09:00
select.c
fs/select: add vmalloc fallback for select(2)
2016-10-11 15:06:30 -07:00
seq_file.c
…
signalfd.c
…
splice.c
fs: prevent page refcount overflow in pipe_buf_get
2023-05-15 13:40:35 +09:00
stack.c
…
stat.c
ufs: restore maintaining ->i_blocks
2017-06-14 15:06:01 +02:00
statfs.c
…
super.c
vfs: remove lockdep bogosity in __sb_start_write
2023-05-16 09:49:08 +09:00
sync.c
ANDROID: sched: add a counter to track fsync
2017-03-14 13:16:06 -07:00
timerfd.c
timerfd: Protect the might cancel mechanism proper
2017-05-08 07:47:54 +02:00
userfaultfd.c
userfaultfd_release: always remove uffd flags and clear vm_userfaultfd_ctx
2023-05-15 14:21:05 +09:00
utimes.c
ANDROID: vfs: Add setattr2 for filesystems with per mount permissions
2017-01-31 10:47:21 -08:00
xattr.c
xattr: break delegations in {set,remove}xattr
2023-05-16 08:45:19 +09:00