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Pan Bian ffaaaf68be ext2: fix potential use after free 
commit ecebf55d27 upstream.

The function ext2_xattr_set calls brelse(bh) to drop the reference count
of bh. After that, bh may be freed. However, following brelse(bh),
it reads bh->b_data via macro HDR(bh). This may result in a
use-after-free bug. This patch moves brelse(bh) after reading field.

CC: stable@vger.kernel.org
Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-12-05 19:32:11 +01:00
..
9p
v9fs_dir_readdir: fix double-free on p9stat_read error
2018-12-01 09:37:27 +01:00
adfs
adfs: use timespec64 for time conversion
2018-08-22 10:52:51 -07:00
affs
…
afs
afs: Handle EIO from delivery function
2018-11-27 16:13:00 +01:00
autofs
Merge branch 'akpm' (patches from Andrew)
2018-08-22 12:34:08 -07:00
befs
fix a series of Documentation/ broken file name references
2018-06-15 18:10:01 -03:00
bfs
bfs: add sanity check at bfs_fill_super()
2018-12-01 09:37:27 +01:00
btrfs
btrfs: relocation: set trans to be NULL after ending transaction
2018-12-05 19:32:07 +01:00
cachefiles
cachefiles: fix the race between cachefiles_bury_object() and rmdir(2)
2018-10-18 11:32:21 +02:00
ceph
ceph: quota: fix null pointer dereference in quota check
2018-11-27 16:13:05 +01:00
cifs
cifs: fix return value for cifs_listxattr
2018-11-27 16:12:58 +01:00
coda
…
configfs
configfs: fix registered group removal
2018-07-17 06:14:07 -07:00
cramfs
Cramfs: fix abad comparison when wrap-arounds occur
2018-11-13 11:08:55 -08:00
crypto
crypto: speck - remove Speck
2018-11-13 11:08:46 -08:00
debugfs
…
devpts
devpts: Convert to new IDA API
2018-08-21 23:54:17 -04:00
dlm
…
ecryptfs
…
efivarfs
efivars: Call guid_parse() against guid_t type of variable
2018-07-22 14:13:44 +02:00
efs
…
exofs
fs/exofs: fix potential memory leak in mount option parsing
2018-11-27 16:13:00 +01:00
exportfs
…
ext2
ext2: fix potential use after free
2018-12-05 19:32:11 +01:00
ext4
ext4: fix buffer leak in __ext4_read_dirblock() on error path
2018-11-21 09:19:22 +01:00
f2fs
f2fs: fix to account IO correctly
2018-11-13 11:08:39 -08:00
fat
fs/fat/fatent.c: add cond_resched() to fat_count_free_clusters()
2018-10-13 09:31:03 +02:00
freevxfs
…
fscache
fscache: Fix out of bound read in long cookie keys
2018-10-18 11:32:21 +02:00
fuse
fuse: fix possibly missed wake-up after abort
2018-11-21 09:19:24 +01:00
gfs2
gfs2: Fix iomap buffer head reference counting bug
2018-12-01 09:37:34 +01:00
hfs
hfs: prevent btree data loss on root split
2018-11-27 16:12:59 +01:00
hfsplus
hfsplus: prevent btree data loss on root split
2018-11-27 16:12:59 +01:00
hostfs
vfs: discard ATTR_ATTR_FLAG
2018-08-17 16:20:28 -07:00
hpfs
hpfs: remove unnecessary checks on the value of r when assigning error code
2018-08-25 12:42:33 -07:00
hugetlbfs
mm: zero out the vma in vma_init()
2018-08-22 10:52:44 -07:00
isofs
isofs: reject hardware sector size > 2048 bytes
2018-08-21 11:37:41 +02:00
jbd2
jbd2: fix use after free in jbd2_log_do_checkpoint()
2018-11-13 11:08:43 -08:00
jffs2
jffs2: free jffs2_sb_info through jffs2_kill_sb()
2018-11-13 11:08:16 -08:00
jfs
Merge tag 'jfs-4.19' of git://github.com/kleikamp/linux-shaggy
2018-08-15 22:47:23 -07:00
kernfs
Merge tag 'driver-core-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2018-08-18 11:44:53 -07:00
lockd
lockd: fix access beyond unterminated strings in prints
2018-11-13 11:08:49 -08:00
minix
…
nfs
NFSv4: Fix an Oops during delegation callbacks
2018-12-01 09:37:33 +01:00
nfs_common
…
nfsd
nfsd: COPY and CLONE operations require the saved filehandle to be set
2018-11-21 09:19:23 +01:00
nilfs2
nilfs2: convert to SPDX license tags
2018-09-04 16:45:02 -07:00
nls
…
notify
fanotify: fix handling of events on child sub-directory
2018-12-01 09:37:31 +01:00
ntfs
ntfs: mft: remove VLA usage
2018-08-17 16:20:27 -07:00
ocfs2
ocfs2: free up write context when direct IO failed
2018-11-21 09:19:18 +01:00
omfs
…
openpromfs
…
orangefs
orangefs: remove redundant pointer orangefs_inode
2018-08-14 12:07:14 -04:00
overlayfs
ovl: automatically enable redirect_dir on metacopy=on
2018-11-21 09:19:13 +01:00
proc
mm: /proc/pid/smaps_rollup: fix NULL pointer deref in smaps_pte_range()
2018-11-13 11:08:46 -08:00
pstore
pstore/ram: Fix failure-path memory leak in ramoops_init
2018-09-30 10:15:41 -07:00
qnx4
…
qnx6
…
quota
fs/quota: Fix spectre gadget in do_quotactl
2018-08-22 18:17:48 +02:00
ramfs
…
reiserfs
reiserfs: propagate errors from fill_with_dentries() properly
2018-11-27 16:12:59 +01:00
romfs
…
squashfs
Squashfs: Compute expected length from inode size rather than block length
2018-08-02 09:34:02 -07:00
sysfs
Merge tag 'driver-core-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2018-08-18 11:44:53 -07:00
sysv
fs/sysv/inode.c: use ktime_get_real_seconds() for superblock stamp
2018-08-22 10:52:51 -07:00
tracefs
tracefs: Annotate tracefs_ops with __ro_after_init
2018-07-31 11:32:44 -04:00
ubifs
ubifs: Fix WARN_ON logic in exit path
2018-10-13 11:05:02 +02:00
udf
udf: Allow mounting volumes with incorrect identification strings
2018-12-05 19:32:06 +01:00
ufs
fs/ufs: use ktime_get_real_seconds for sb and cg timestamps
2018-08-17 16:20:27 -07:00
xfs
xfs: fix data corruption w/ unaligned reflink ranges
2018-10-06 11:44:39 +10:00
aio.c
Merge branch 'work.aio' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2018-08-13 20:56:23 -07:00
anon_inodes.c
anon_inode_getfile(): switch to alloc_file_pseudo()
2018-07-12 10:04:27 -04:00
attr.c
fs: Fix attr.c kernel-doc
2018-07-03 16:44:45 -04:00
bad_inode.c
get rid of 'opened' argument of ->atomic_open() - part 3
2018-07-12 10:04:20 -04:00
binfmt_aout.c
…
binfmt_elf_fdpic.c
…
binfmt_elf.c
Merge tag 'mips_4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
2018-08-13 19:24:32 -07:00
binfmt_em86.c
…
binfmt_flat.c
…
binfmt_misc.c
turn filp_clone_open() into inline wrapper for dentry_open()
2018-07-10 23:29:03 -04:00
binfmt_script.c
…
block_dev.c
Merge tag 'for-4.19/block-20180812' of git://git.kernel.dk/linux-block
2018-08-14 10:23:25 -07:00
buffer.c
notifier: Remove notifier header file wherever not used
2018-08-30 12:56:40 +02:00
char_dev.c
…
compat_binfmt_elf.c
…
compat_ioctl.c
media: dvb/audio.h: get rid of unused APIs
2018-07-30 16:21:49 -04:00
compat.c
…
coredump.c
…
d_path.c
…
dax.c
dax: Avoid losing wakeup in dax_lock_mapping_entry
2018-12-01 09:37:34 +01:00
dcache.c
fs/dcache.c: fix kmemcheck splat at take_dentry_name_snapshot()
2018-08-17 16:20:28 -07:00
dcookies.c
…
direct-io.c
fs: fix lost error code in dio_complete
2018-12-05 19:32:08 +01:00
drop_caches.c
…
eventfd.c
Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL
2018-06-28 10:40:47 -07:00
eventpoll.c
fs/eventpoll.c: simplify ep_is_linked() callers
2018-08-22 10:52:49 -07:00
exec.c
Merge branch 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2018-08-21 13:47:29 -07:00
fcntl.c
signal: Don't send signals to tasks that don't exist
2018-08-15 23:03:20 -05:00
fhandle.c
…
file_table.c
Merge tag 'ovl-update-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
2018-08-21 18:19:09 -07:00
file.c
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filesystems.c
…
fs_pin.c
…
fs_struct.c
…
fs-writeback.c
…
inode.c
mm: don't reclaim inodes with many attached pages
2018-11-21 09:19:25 +01:00
internal.h
Merge tag 'ovl-update-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
2018-08-21 18:19:09 -07:00
ioctl.c
vfs: fix FIGETBSZ ioctl on an overlayfs file
2018-11-21 09:19:14 +01:00
iomap.c
iomap: set page dirty after partial delalloc on mkwrite
2018-09-29 13:51:01 +10:00
Kconfig
…
Kconfig.binfmt
kconfig: move the "Executable file formats" menu to fs/Kconfig.binfmt
2018-08-02 08:06:55 +09:00
libfs.c
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locks.c
Merge tag 'ovl-update-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
2018-08-21 18:19:09 -07:00
Makefile
…
mbcache.c
…
mount.h
…
mpage.c
mpage: mpage_readpages() should submit IO as read-ahead
2018-08-17 16:20:29 -07:00
namei.c
namei: allow restricted O_CREAT of FIFOs and regular files
2018-08-23 18:48:43 -07:00
namespace.c
mnt: fix __detach_mounts infinite loop
2018-11-21 09:19:22 +01:00
no-block.c
…
nsfs.c
…
open.c
Merge tag 'ovl-update-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
2018-08-21 18:19:09 -07:00
pipe.c
Merge branch 'work.open3' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2018-08-13 19:58:36 -07:00
pnode.c
…
pnode.h
…
posix_acl.c
…
proc_namespace.c
…
read_write.c
vfs: swap names of {do,vfs}_clone_file_range()
2018-09-24 10:54:01 +02:00
readdir.c
…
select.c
Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL
2018-06-28 10:40:47 -07:00
seq_file.c
fs/seq_file.c: simplify seq_file iteration code and interface
2018-08-17 16:20:28 -07:00
signalfd.c
Merge branch 'work.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2018-06-16 16:21:50 +09:00
splice.c
Merge branch 'work.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2018-06-16 16:21:50 +09:00
stack.c
…
stat.c
…
statfs.c
kernel: add kcompat_sys_{f,}statfs64()
2018-07-12 14:49:48 +01:00
super.c
Merge branch 'ida-4.19' of git://git.infradead.org/users/willy/linux-dax
2018-08-26 11:48:42 -07:00
sync.c
…
timerfd.c
Merge branch 'work.aio' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2018-08-13 20:56:23 -07:00
userfaultfd.c
userfaultfd: shmem/hugetlbfs: only allow to register VM_MAYWRITE vmas
2018-12-05 19:32:04 +01:00
utimes.c
…
xattr.c
sysfs: Do not return POSIX ACL xattrs via listxattr
2018-09-18 07:30:48 -04:00