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linux-hardened/fs/ext4
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Theodore Ts'o f0a459dec5 ext4: fix online resize's handling of a too-small final block group 
Avoid growing the file system to an extent so that the last block
group is too small to hold all of the metadata that must be stored in
the block group.

This problem can be triggered with the following reproducer:

umount /mnt
mke2fs -F -m0 -b 4096 -t ext4 -O resize_inode,^has_journal \
	-E resize=1073741824 /tmp/foo.img 128M
mount /tmp/foo.img /mnt
truncate --size 1708M /tmp/foo.img
resize2fs /dev/loop0 295400
umount /mnt
e2fsck -fy /tmp/foo.img

Reported-by: Torsten Hilbrich <torsten.hilbrich@secunet.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@vger.kernel.org
2018-09-03 22:19:43 -04:00
..
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 ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
balloc.c ext4: use ext4_warning() for sb_getblk failure 2018-08-01 12:02:31 -04:00
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: use 'sbi' instead of 'EXT4_SB(sb)' 2018-01-11 13:17:49 -05:00
dir.c ext4: avoid divide by zero fault when deleting corrupted inline directories 2018-08-27 09:22:45 -04:00
ext4.h ext4: avoid arithemetic overflow that can trigger a BUG 2018-09-01 12:45:04 -04:00
ext4_extents.h ext4: verify the depth of extent tree in ext4_find_extent() 2018-06-14 12:55:10 -04:00
ext4_jbd2.c ext4: shutdown should not prevent get_write_access 2018-02-18 22:07:36 -05:00
ext4_jbd2.h ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
extents.c ext4: handle layout changes to pinned DAX mappings 2018-07-29 17:00:22 -04:00
extents_status.c ext4: remove NULL check before calling kmem_cache_destroy() 2018-05-20 22:44:13 -04:00
extents_status.h ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
file.c ext4: do not update s_last_mounted of a frozen fs 2018-05-13 22:54:44 -04:00
fsmap.c ext4: make function ‘ext4_getfsmap_find_fixed_metadata’ static 2018-05-10 11:50:04 -04:00
fsmap.h ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
fsync.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hash.c ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
ialloc.c ext4: use ext4_warning() for sb_getblk failure 2018-08-01 12:02:31 -04:00
indirect.c ext4: fix hole length detection in ext4_ind_map_blocks() 2018-05-12 19:55:00 -04:00
inline.c ext4: avoid divide by zero fault when deleting corrupted inline directories 2018-08-27 09:22:45 -04:00
inode.c ext4: avoid arithemetic overflow that can trigger a BUG 2018-09-01 12:45:04 -04:00
ioctl.c ext4: remove EXT4_STATE_DIOREAD_LOCK flag 2018-03-22 11:52:10 -04:00
Kconfig fs/*/Kconfig: drop links to 404-compliant http://acl.bestbits.at 2018-01-01 12:45:37 -07:00
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: remove unneeded variable "err" in ext4_mb_release_inode_pa() 2018-08-04 17:34:07 -04:00
mballoc.h ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
migrate.c ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
mmp.c ext4: use 64-bit timestamps for mmp_time 2018-07-29 15:49:00 -04:00
move_extent.c ext4: use swap macro in mext_page_double_lock 2018-07-29 16:11:59 -04:00
namei.c ext4: check to make sure the rename(2)'s destination is not freed 2018-08-27 01:47:09 -04:00
page-io.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
readpage.c fscrypt: allow synchronous bio decryption 2018-05-02 14:30:57 -07:00
resize.c ext4: fix online resize's handling of a too-small final block group 2018-09-03 22:19:43 -04:00
super.c ext4: recalucate superblock checksum after updating free blocks/inodes 2018-09-01 14:42:14 -04:00
symlink.c ext4: switch to fscrypt_get_symlink() 2018-01-11 22:10:40 -05:00
sysfs.c ext4: super: extend timestamps to 40 bits 2018-07-29 15:51:48 -04:00
truncate.h ext4: handle layout changes to pinned DAX mappings 2018-07-29 17:00:22 -04:00
xattr.c ext4: check for NUL characters in extended attribute's name 2018-08-01 12:36:52 -04:00
xattr.h ext4: add extra checks to ext4_xattr_block_get() 2018-03-30 20:04:11 -04:00
xattr_security.c ext4: use XATTR_CREATE in ext4_initxattrs() 2018-05-10 11:52:14 -04:00
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