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linux/fs/ext4
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Theodore Ts'o b39430ea06 ext4: add validity checks for bitmap block numbers 
commit 7dac4a1726 upstream.

An privileged attacker can cause a crash by mounting a crafted ext4
image which triggers a out-of-bounds read in the function
ext4_valid_block_bitmap() in fs/ext4/balloc.c.

This issue has been assigned CVE-2018-1093.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=199181
BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1560782
Reported-by: Wen Xu <wen.xu@gatech.edu>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2018-05-01 12:58:07 -07:00
..
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: add validity checks for bitmap block numbers 2018-05-01 12:58:07 -07:00
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 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
dir.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ext4.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ext4_extents.h ext4: fix misspellings in comments. 2016-03-09 23:49:05 -05:00
ext4_jbd2.c ext4: shutdown should not prevent get_write_access 2018-04-24 09:36:30 +02:00
ext4_jbd2.h ext4, project: expand inode extra size if possible 2017-08-06 01:00:49 -04:00
extents.c ext4: prevent right-shifting extents beyond EXT_MAX_BLOCKS 2018-05-01 12:58:06 -07:00
extents_status.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
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 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
fsmap.c ext4: fix off-by-one fsmap error on 1k block filesystems 2017-06-23 00:58:57 -04:00
fsmap.h ext4: support GETFSMAP ioctls 2017-04-30 00:36:53 -04:00
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: remove useless test and assignment in strtohash functions 2017-08-24 15:11:34 -04:00
ialloc.c ext4: add validity checks for bitmap block numbers 2018-05-01 12:58:07 -07:00
indirect.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
inline.c ext4: prevent data corruption with inline data + DAX 2017-11-30 08:40:48 +00:00
inode.c ext4: fail ext4_iget for root directory if unallocated 2018-04-24 09:36:30 +02:00
ioctl.c ext4: pass -ESHUTDOWN code to jbd2 layer 2018-04-24 09:36:30 +02:00
Kconfig dax: fix build warnings with FS_DAX and !FS_IOMAP 2017-01-24 16:26:14 -08:00
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: fix clang build regression 2017-08-14 08:29:18 -04:00
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: do not set posix acls on xattr inodes 2017-06-21 21:21:39 -04:00
mmp.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
move_extent.c ext4: add ext4_is_quota_file() 2017-06-22 11:31:25 -04:00
namei.c ext4: fix crash when a directory's i_size is too small 2017-12-20 10:10:22 +01:00
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 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
resize.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
super.c ext4: add MODULE_SOFTDEP to ensure crc32c is included in the initramfs 2018-05-01 12:58:07 -07:00
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 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
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 extra checks to ext4_xattr_block_get() 2018-04-24 09:36:31 +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