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linux-stable/fs/ext4
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Theodore Ts'o 9569234645 ext4: fix race writing to an inline_data file while its xattrs are changing 
commit a54c4613da upstream.

The location of the system.data extended attribute can change whenever
xattr_sem is not taken.  So we need to recalculate the i_inline_off
field since it mgiht have changed between ext4_write_begin() and
ext4_write_end().

This means that caching i_inline_off is probably not helpful, so in
the long run we should probably get rid of it and shrink the in-memory
ext4 inode slightly, but let's fix the race the simple way for now.

Cc: stable@kernel.org
Fixes: f19d5870cb ("ext4: add normal write support for inline data")
Reported-by: syzbot+13146364637c7363a7de@syzkaller.appspotmail.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-09-22 11:45:14 +02:00
..
acl.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
acl.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
balloc.c ext4: fix potential race between online resizing and write operations 2020-03-11 18:02:42 +01:00
bitmap.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
block_validity.c ext4: check journal inode extents more carefully 2021-03-24 11:04:54 +01:00
dir.c ext4: fix checksum errors with indexed dirs 2020-02-28 16:35:52 +01:00
ext4.h ext4: check journal inode extents more carefully 2021-03-24 11:04:54 +01:00
ext4_extents.h ext4: fix EXT_MAX_EXTENT/INDEX to check for zeroed eh_max 2020-06-20 10:25:15 +02:00
ext4_jbd2.c ext4: shutdown should not prevent get_write_access 2018-04-24 09:36:30 +02:00
ext4_jbd2.h ext4: use jbd2_inode dirty range scoping 2019-07-31 07:28:47 +02:00
extents.c ext4: fix kernel infoleak via ext4_extent_header 2021-07-20 16:17:28 +02:00
extents_status.c ext4: remove check for zero nr_to_scan in ext4_es_scan() 2021-07-20 16:17:28 +02:00
extents_status.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
file.c ext4: fix ext4_dax_read/write inode locking sequence for IOCB_NOWAIT 2020-02-28 16:35:55 +01:00
fsmap.c ext4: limit entries returned when counting fsmap records 2020-10-29 09:07:11 +01:00
fsmap.h ext4: support GETFSMAP ioctls 2017-04-30 00:36:53 -04:00
fsync.c ext4: fix race between ext4_sync_parent() and rename() 2020-06-20 10:25:15 +02:00
hash.c ext4: remove useless test and assignment in strtohash functions 2017-08-24 15:11:34 -04:00
ialloc.c ext4: fix avefreec in find_group_orlov 2021-07-20 16:17:29 +02:00
indirect.c ext4: check journal inode extents more carefully 2021-03-24 11:04:54 +01:00
inline.c ext4: fix race writing to an inline_data file while its xattrs are changing 2021-09-22 11:45:14 +02:00
inode.c ext4: fix bh ref count on error paths 2021-04-07 12:47:00 +02:00
ioctl.c ext4: fix superblock checksum failure when setting password salt 2021-01-23 15:48:44 +01:00
Kconfig
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mballoc.c ext4: use ext4_grp_locked_error in mb_find_extent 2021-07-20 16:17:29 +02:00
mballoc.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
migrate.c ext4: fix race between writepages and enabling EXT4_EXTENTS_FL 2020-02-28 16:36:13 +01:00
mmp.c ext4: don't assume that mmp_nodename/bdevname have NUL 2020-02-28 16:35:52 +01:00
move_extent.c ext4: use jbd2_inode dirty range scoping 2019-07-31 07:28:47 +02:00
namei.c ext4: fix potential htree corruption when growing large_dir directories 2021-08-15 13:03:31 +02:00
page-io.c ext4: fix deadlock allocating crypto bounce page from mempool 2020-02-14 16:32:19 -05:00
readpage.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
resize.c ext4: fix error handling code in add_new_gdb 2020-11-05 11:07:04 +01:00
super.c ext4: cleanup in-core orphan list if ext4_truncate() failed to get a transaction handle 2021-07-20 16:17:28 +02:00
symlink.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sysfs.c ext4: sysfs: print ext4_super_block fields as little-endian 2018-09-05 09:26:36 +02:00
truncate.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xattr.c ext4: add reclaim checks to xattr code 2021-03-30 14:40:12 +02:00
xattr.h ext4: add extra checks to ext4_xattr_block_get() 2018-04-24 09:36:31 +02:00
xattr_security.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xattr_trusted.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xattr_user.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00