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Anand Jain fbfbb996d5 btrfs: prop: fix zstd compression parameter validation 
commit 50398fde99 upstream.

We let pass zstd compression parameter even if it is not fully valid.
For example:

  $ btrfs prop set /btrfs compression zst
  $ btrfs prop get /btrfs compression
     compression=zst

zlib and lzo are fine.

Fix it by checking the correct prefix length.

Fixes: 5c1aab1dd5 ("btrfs: Add zstd support")
CC: stable@vger.kernel.org # 4.14+
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Anand Jain <anand.jain@oracle.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>
2019-04-17 08:38:51 +02:00
..
9p
9p: use inode->i_lock to protect i_size_write() under 32-bit
2019-03-23 20:09:38 +01:00
adfs
adfs: use timespec64 for time conversion
2018-08-22 10:52:51 -07:00
affs
…
afs
afs: Fix key refcounting in file locking code
2019-02-27 10:08:56 +01:00
autofs
autofs: fix error return in autofs_fill_super()
2019-03-13 14:02:32 -07:00
befs
…
bfs
bfs: add sanity check at bfs_fill_super()
2018-12-01 09:37:27 +01:00
btrfs
btrfs: prop: fix zstd compression parameter validation
2019-04-17 08:38:51 +02:00
cachefiles
fscache, cachefiles: remove redundant variable 'cache'
2018-12-17 09:24:40 +01:00
ceph
ceph: avoid repeatedly adding inode to mdsc->snap_flush_list
2019-02-27 10:08:50 +01:00
cifs
cifs: Fix NULL pointer dereference of devname
2019-04-05 22:33:00 +02:00
coda
…
configfs
…
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
debugfs: fix debugfs_rename parameter checking
2019-02-15 08:10:11 +01:00
devpts
fs/devpts: always delete dcache dentry-s in dput()
2019-03-23 20:09:59 +01:00
dlm
dlm: Don't swamp the CPU with callbacks queued during recovery
2019-02-12 19:46:58 +01:00
ecryptfs
…
efivarfs
…
efs
…
exofs
fs/exofs: fix potential memory leak in mount option parsing
2018-11-27 16:13:00 +01:00
exportfs
exportfs: do not read dentry after free
2018-12-17 09:24:35 +01:00
ext2
ext2: Fix underflow in ext2_max_size()
2019-03-23 20:10:03 +01:00
ext4
ext4: cleanup bh release code in ext4_ind_remove_space()
2019-04-05 22:32:55 +02:00
f2fs
f2fs: UBSAN: set boolean value iostat_enable correctly
2019-04-05 22:33:14 +02:00
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 race between enablement and dropping of object
2018-12-17 09:24:40 +01:00
fuse
fuse: handle zero sized retrieve correctly
2019-02-12 19:47:24 +01:00
gfs2
gfs2: Fix missed wakeups in find_insert_glock
2019-03-13 14:02:40 -07:00
hfs
hfs: do not free node before using
2018-12-17 09:24:41 +01:00
hfsplus
hfsplus: do not free node before using
2018-12-17 09:24:41 +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
hugetlbfs: fix races and page leaks during migration
2019-03-05 17:58:53 +01:00
isofs
isofs: reject hardware sector size > 2048 bytes
2018-08-21 11:37:41 +02:00
jbd2
jbd2: fix race when writing superblock
2019-04-05 22:33:07 +02:00
jffs2
jffs2: Fix use of uninitialized delayed_work, lockdep breakage
2019-01-26 09:32:37 +01:00
jfs
Merge tag 'jfs-4.19' of git://github.com/kleikamp/linux-shaggy
2018-08-15 22:47:23 -07:00
kernfs
fix cgroup_do_mount() handling of failure exits
2019-03-23 20:09:53 +01:00
lockd
NFS: fix mount/umount race in nlmclnt.
2019-04-03 06:26:21 +02:00
minix
…
nfs
NFSv4.1 don't free interrupted slot on open
2019-04-03 06:26:22 +02:00
nfs_common
…
nfsd
nfsd: fix wrong check in write_v4_end_grace()
2019-03-23 20:10:09 +01:00
nilfs2
nilfs2: convert to SPDX license tags
2018-09-04 16:45:02 -07:00
nls
…
notify
inotify: Fix fd refcount leak in inotify_add_watch().
2019-01-31 08:14:34 +01:00
ntfs
ntfs: mft: remove VLA usage
2018-08-17 16:20:27 -07:00
ocfs2
ocfs2: fix a panic problem caused by o2cb_ctl
2019-04-05 22:32:59 +02:00
omfs
…
openpromfs
…
orangefs
orangefs: remove redundant pointer orangefs_inode
2018-08-14 12:07:14 -04:00
overlayfs
ovl: Do not lose security.capability xattr over metadata file copy-up
2019-03-23 20:09:59 +01:00
proc
fs/proc/proc_sysctl.c: fix NULL pointer dereference in put_links
2019-04-03 06:26:26 +02:00
pstore
pstore/ram: Do not treat empty buffers as valid
2019-01-26 09:32:37 +01:00
qnx4
…
qnx6
…
quota
quota: Lock s_umount in exclusive mode for Q_XQUOTA{ON,OFF} quotactls.
2019-01-26 09:32:42 +01:00
ramfs
…
reiserfs
reiserfs: propagate errors from fill_with_dentries() properly
2018-11-27 16:12:59 +01:00
romfs
…
squashfs
…
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
sysv: return 'err' instead of 0 in __sysv_write_inode
2018-12-17 09:24:30 +01:00
tracefs
…
ubifs
ubifs: Handle re-linking of inodes correctly while recovery
2018-12-29 13:37:55 +01:00
udf
udf: Fix crash on IO error during truncate
2019-03-27 14:14:39 +09:00
ufs
fs/ufs: use ktime_get_real_seconds for sb and cg timestamps
2018-08-17 16:20:27 -07:00
xfs
xfs: eof trim writeback mapping as soon as it is cached
2019-02-12 19:47:23 +01:00
aio.c
aio: Fix locking in aio_poll()
2019-03-10 07:17:21 +01:00
anon_inodes.c
…
attr.c
…
bad_inode.c
…
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
…
binfmt_script.c
Revert "exec: load_script: don't blindly truncate shebang string"
2019-02-15 09:09:54 +01:00
block_dev.c
blockdev: Fix livelocks on loop device
2019-01-22 21:40:36 +01:00
buffer.c
fs: fix guard_bio_eod to check for real EOD errors
2019-04-05 22:33:00 +02:00
char_dev.c
…
compat_binfmt_elf.c
…
compat_ioctl.c
…
compat.c
…
coredump.c
…
d_path.c
…
dax.c
dax: Use non-exclusive wait in wait_entry_unlocked()
2019-01-09 17:38:46 +01:00
dcache.c
fs/dcache: Fix incorrect nr_dentry_unused accounting in shrink_dcache_sb()
2019-02-06 17:30:11 +01:00
dcookies.c
…
direct-io.c
direct-io: allow direct writes to empty inodes
2019-03-05 17:58:50 +01:00
drop_caches.c
fs/drop_caches.c: avoid softlockups in drop_pagecache_sb()
2019-03-13 14:02:32 -07:00
eventfd.c
…
eventpoll.c
fs/epoll: drop ovflist branch prediction
2019-02-12 19:47:19 +01:00
exec.c
exec: Fix mem leak in kernel_read_file
2019-03-10 07:17:21 +01:00
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
fs/file.c: initialize init_files.resize_wait
2019-04-05 22:32:59 +02:00
filesystems.c
…
fs_pin.c
…
fs_struct.c
…
fs-writeback.c
writeback: synchronize sync(2) against cgroup writeback membership switches
2019-03-05 17:58:50 +01:00
inode.c
Revert "mm: don't reclaim inodes with many attached pages"
2019-02-20 10:25:47 +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: fix a use after free in iomap_dio_rw
2019-03-13 14:02:29 -07:00
Kconfig
…
Kconfig.binfmt
…
libfs.c
…
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
Revert "vfs: Allow userns root to call mknod on owned filesystems."
2018-12-29 13:37:54 +01:00
namespace.c
mnt: fix __detach_mounts infinite loop
2018-11-21 09:19:22 +01:00
no-block.c
…
nsfs.c
…
open.c
fs/open.c: allow opening only regular files during execve()
2019-04-03 06:26:23 +02:00
pipe.c
splice: don't merge into linked buffers
2019-03-23 20:09:59 +01:00
pnode.c
…
pnode.h
…
posix_acl.c
…
proc_namespace.c
…
read_write.c
vfs: fix preadv64v2 and pwritev64v2 compat syscalls with offset == -1
2019-04-05 22:33:06 +02:00
readdir.c
…
select.c
…
seq_file.c
fs/seq_file.c: simplify seq_file iteration code and interface
2018-08-17 16:20:28 -07:00
signalfd.c
…
splice.c
splice: don't merge into linked buffers
2019-03-23 20:09:59 +01:00
stack.c
…
stat.c
…
statfs.c
…
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: clear flag if remap event not enabled
2019-01-26 09:32:43 +01:00
utimes.c
…
xattr.c
sysfs: Do not return POSIX ACL xattrs via listxattr
2018-09-18 07:30:48 -04:00