Artem Savkov bc5f31d34e Make __xfs_xattr_put_listen preperly report errors. ... commit 791cc43b36eb1f88166c8505900cad1b43c7fe1a upstream. Commit 2a6fba6 "xfs: only return -errno or success from attr ->put_listent" changes the returnvalue of __xfs_xattr_put_listen to 0 in case when there is insufficient space in the buffer assuming that setting context->count to -1 would be enough, but all of the ->put_listent callers only check seen_enough. This results in a failed assertion: XFS: Assertion failed: context->count >= 0, file: fs/xfs/xfs_xattr.c, line: 175 in insufficient buffer size case. This is only reproducible with at least 2 xattrs and only when the buffer gets depleted before the last one. Furthermore if buffersize is such that it is enough to hold the last xattr's name, but not enough to hold the sum of preceeding xattr names listxattr won't fail with ERANGE, but will suceed returning last xattr's name without the first character. The first character end's up overwriting data stored at (context->alist - 1). Signed-off-by: Artem Savkov <asavkov@redhat.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com> Cc: Nikolay Borisov <nborisov@suse.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2017-06-14 13:16:27 +02:00
..
9p	9p: fix a potential acl leak	2017-05-14 13:32:54 +02:00
adfs
affs	affs: fix remount failure when there are no options changed	2016-06-07 18:14:32 -07:00
afs
autofs4	autofs: use dentry flags to block walks during expire	2016-09-30 10:18:37 +02:00
befs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-07-04 19:36:06 -07:00
bfs
btrfs	btrfs: fix memory leak in update_space_info failure path	2017-06-14 13:16:24 +02:00
cachefiles	FS-Cache: Add missing initialization of ret in cachefiles_write_page()	2015-11-16 20:38:43 -05:00
ceph	fs: add i_blocksize()	2017-06-14 13:16:24 +02:00
cifs	CIFS: add misssing SFM mapping for doublequote	2017-05-20 14:27:01 +02:00
coda	fs/coda: fix readlink buffer overflow	2015-09-10 13:29:01 -07:00
configfs	configfs: allow dynamic group creation	2015-11-20 16:17:32 -08:00
cramfs
debugfs	debugfs: Make automount point inodes permanently empty	2016-05-04 14:48:41 -07:00
devpts	devpts: clean up interface to pty drivers	2016-08-16 09:30:49 +02:00
dlm	dlm: free workqueues after the connections	2016-10-22 12:26:56 +02:00
ecryptfs	ecryptfs: fix handling of directory opening	2016-09-15 08:27:47 +02:00
efivarfs	efi: Make efivarfs entries immutable by default	2016-03-03 15:07:09 -08:00
efs
exofs	osd fs: __r4w_get_page rely on PageUptodate for uptodate	2015-12-12 10:15:34 -08:00
exportfs
ext2	posix_acl: Clear SGID bit when setting file permissions	2016-10-31 04:13:58 -06:00
ext4	fs: add i_blocksize()	2017-06-14 13:16:24 +02:00
f2fs	fscrypt: avoid collisions when presenting long encrypted filenames	2017-05-25 14:30:11 +02:00
fat	fat: fix using uninitialized fields of fat_inode/fsinfo_inode	2017-03-15 09:57:15 +08:00
freevxfs	freevxfs: Grammar s/an negative/a negative/	2015-08-07 13:59:24 +02:00
fscache	FS-Cache: Handle a write to the page immediately beyond the EOF marker	2015-11-11 02:11:02 -05:00
fuse	fuse: add missing FR_FORCE	2017-03-12 06:37:28 +01:00
gfs2	gfs2: avoid uninitialized variable warning	2017-04-30 05:49:28 +02:00
hfs	hfs: fix B-tree corruption after insertion at position 0	2015-09-10 13:29:01 -07:00
hfsplus	posix_acl: Clear SGID bit when setting file permissions	2016-10-31 04:13:58 -06:00
hostfs	hostfs: Freeing an ERR_PTR in hostfs_fill_sb_common()	2016-09-30 10:18:39 +02:00
hpfs	hpfs: implement the show_options method	2016-06-01 12:15:54 -07:00
hugetlbfs	fs/hugetlbfs/inode.c: fix bugs in hugetlb_vmtruncate_list()	2016-02-25 12:01:22 -08:00
isofs	isofs: Do not return EACCES for unknown filesystems	2016-10-28 03:01:34 -04:00
jbd2	jbd2: don't leak modified metadata buffers on an aborted journal	2017-03-12 06:37:26 +01:00
jffs2	posix_acl: Clear SGID bit when setting file permissions	2016-10-31 04:13:58 -06:00
jfs	fs: add i_blocksize()	2017-06-14 13:16:24 +02:00
kernfs	kernfs: don't depend on d_find_any_alias() when generating notifications	2016-09-24 10:07:36 +02:00
lockd	Mainly smaller bugfixes and cleanup. We're still finding some bugs from	2015-11-11 20:11:28 -08:00
logfs	mm, fs: introduce mapping_gfp_constraint()	2015-11-06 17:50:42 -08:00
minix	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-07-04 19:36:06 -07:00
ncpfs	ncpfs: fix a braino in OOM handling in ncp_fill_cache()	2016-03-16 08:42:59 -07:00
nfs	NFSv4: Don't perform cached access checks before we've OPENed the file	2017-06-14 13:16:26 +02:00
nfs_common	lockd: NLM grace period shouldn't block NFSv4 opens	2015-08-13 10:22:06 -04:00
nfsd	fs: add i_blocksize()	2017-06-14 13:16:24 +02:00
nilfs2	fs: add i_blocksize()	2017-06-14 13:16:24 +02:00
nls
notify	fanotify: fix list corruption in fanotify_get_response()	2016-09-30 10:18:37 +02:00
ntfs	mm, fs: introduce mapping_gfp_constraint()	2015-11-06 17:50:42 -08:00
ocfs2	fs: add i_blocksize()	2017-06-14 13:16:24 +02:00
omfs
openpromfs
overlayfs	ovl: fsync after copy-up	2016-11-10 16:36:34 +01:00
proc	proc: Fix unbalanced hard link numbers	2017-05-25 14:30:10 +02:00
pstore	pstore/ram: Use memcpy_fromio() to save old buffer	2016-10-28 03:01:27 -04:00
qnx4
qnx6
quota	quota: Fix possible GPF due to uninitialised pointers	2016-04-12 09:08:56 -07:00
ramfs	mm, fs: obey gfp_mapping for add_to_page_cache()	2015-10-16 11:42:28 -07:00
reiserfs	fs: add i_blocksize()	2017-06-14 13:16:24 +02:00
romfs
squashfs	squashfs: xattr simplifications	2015-11-13 20:34:33 -05:00
sysfs	sysfs: be careful of error returns from ops->show()	2017-04-12 12:38:33 +02:00
sysv	fix sysvfs symlinks	2015-11-23 21:11:08 -05:00
tracefs	tracefs: Fix refcount imbalance in start_creating()	2015-11-04 22:13:45 -05:00
ubifs	ubifs: Fix journal replay wrt. xattr nodes	2017-01-26 08:23:48 +01:00
udf	fs: add i_blocksize()	2017-06-14 13:16:24 +02:00
ufs	ufs_getfrag_block(): we only grab ->truncate_mutex on block creation path	2017-06-14 13:16:24 +02:00
xfs	Make __xfs_xattr_put_listen preperly report errors.	2017-06-14 13:16:27 +02:00
aio.c	aio: mark AIO pseudo-fs noexec	2016-10-07 15:23:47 +02:00
anon_inodes.c
attr.c	vfs: move permission checking into notify_change() for utimes(NULL)	2016-10-22 12:26:56 +02:00
bad_inode.c
binfmt_aout.c
binfmt_elf.c	Merge branch 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-11-11 09:45:24 -08:00
binfmt_elf_fdpic.c	libnvdimm for 4.4:	2015-11-10 12:07:22 -08:00
binfmt_em86.c
binfmt_flat.c
binfmt_misc.c
binfmt_script.c
block_dev.c	fs/block_dev: always invalidate cleancache in invalidate_bdev()	2017-05-20 14:27:01 +02:00
buffer.c	fs: add i_blocksize()	2017-06-14 13:16:24 +02:00
char_dev.c	fs/char_dev.c: fix incorrect documentation for unregister_chrdev_region	2015-08-05 13:49:35 -07:00
compat.c
compat_binfmt_elf.c
compat_ioctl.c	i2c-dev: Fix typo in ioctl name reference	2015-10-23 23:26:43 +02:00
coredump.c	coredump: fix unfreezable coredumping task	2016-11-18 10:48:34 +01:00
dax.c	dax: disable pmd mappings	2015-11-16 23:54:45 -08:00
dcache.c	mnt: Protect the mountpoint hashtable with mount_lock	2017-01-19 20:17:21 +01:00
dcookies.c
direct-io.c	fs: add i_blocksize()	2017-06-14 13:16:24 +02:00
drop_caches.c	inode: convert inode_sb_list_lock to per-sb	2015-08-17 18:39:46 -04:00
eventfd.c
eventpoll.c
exec.c	exec: Ensure mm->user_ns contains the execed files	2017-01-06 11:16:14 +01:00
fcntl.c
fhandle.c	fs/coredump: prevent fsuid=0 dumps into user-controlled directories	2016-04-12 09:08:58 -07:00
file.c	vfs: clear remainder of 'full_fds_bits' in dup_fd()	2015-11-05 23:05:32 -08:00
file_table.c	fs, file table: reinit files_stat.max_files after deferred memory initialisation	2015-08-07 04:39:40 +03:00
filesystems.c
fs-writeback.c	writeback, cgroup: fix use of the wrong bdi_writeback which mismatches the inode	2016-04-12 09:09:04 -07:00
fs_pin.c
fs_struct.c
inode.c	vfs: fix deadlock in file_remove_privs() on overlayfs	2016-08-10 11:49:30 +02:00
internal.h	inode: rename i_wb_list to i_io_list	2015-08-17 23:38:10 -04:00
ioctl.c
Kconfig	dax: disable pmd mappings	2015-11-16 23:54:45 -08:00
Kconfig.binfmt
libfs.c	fs: Set the size of empty dirs to 0.	2015-08-12 15:28:45 -05:00
locks.c	locks: use file_inode()	2016-08-10 11:49:27 +02:00
Makefile	ext4: promote ext4 over ext2 in the default probe order	2015-10-15 10:33:21 -04:00
mbcache.c
mount.h	mnt: Add a per mount namespace limit on the number of mounts	2017-04-30 05:49:28 +02:00
mpage.c	fs: add i_blocksize()	2017-06-14 13:16:24 +02:00
namei.c	fs: Check for invalid i_uid in may_follow_link()	2016-09-15 08:27:49 +02:00
namespace.c	mnt: Add a per mount namespace limit on the number of mounts	2017-04-30 05:49:28 +02:00
no-block.c
nsfs.c	fs/seq_file: convert int seq_vprint/seq_printf/etc... returns to void	2015-09-11 15:21:34 -07:00
open.c	vfs: add vfs_select_inode() helper	2016-05-18 17:06:48 -07:00
pipe.c	pipe: limit the per-user amount of pages allocated in pipes	2016-06-07 18:14:35 -07:00
pnode.c	mnt: Add a per mount namespace limit on the number of mounts	2017-04-30 05:49:28 +02:00
pnode.h	mnt: Add a per mount namespace limit on the number of mounts	2017-04-30 05:49:28 +02:00
posix_acl.c	tmpfs: clear S_ISGID when setting posix ACLs	2017-01-26 08:23:47 +01:00
proc_namespace.c	vfs: show_vfsstat: do not ignore errors from show_devname method	2016-04-12 09:08:55 -07:00
read_write.c
readdir.c
select.c
seq_file.c	fs/seq_file: fix out-of-bounds read	2016-09-07 08:32:43 +02:00
signalfd.c	signalfd: fix information leak in signalfd_copyinfo	2015-08-07 04:39:40 +03:00
splice.c	vfs: fix uninitialized flags in splice_to_pipe()	2017-02-23 17:43:09 +01:00
stack.c
stat.c	ufs: restore maintaining ->i_blocks	2017-06-14 13:16:24 +02:00
statfs.c
super.c	fs/super.c: fix race between freeze_super() and thaw_super()	2016-10-28 03:01:32 -04:00
sync.c	fs/sync.c: make sync_file_range(2) use WB_SYNC_NONE writeback	2015-11-06 17:50:42 -08:00
timerfd.c	timerfd: Protect the might cancel mechanism proper	2017-05-08 07:46:01 +02:00
userfaultfd.c	userfaultfd: don't block on the last VM updates at exit time	2016-03-16 08:43:01 -07:00
utimes.c	vfs: move permission checking into notify_change() for utimes(NULL)	2016-10-22 12:26:56 +02:00
xattr.c	fs/xattr.c: zero out memory copied to userspace in getxattr	2017-05-20 14:27:01 +02:00