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bc890a6024
linux/fs/ext4
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Theodore Ts'o bc890a6024 ext4: verify the depth of extent tree in ext4_find_extent() 
If there is a corupted file system where the claimed depth of the
extent tree is -1, this can cause a massive buffer overrun leading to
sadness.

This addresses CVE-2018-10877.

https://bugzilla.kernel.org/show_bug.cgi?id=199417

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
2018-06-14 12:55:10 -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: only look at the bg_flags field if it is valid 2018-06-14 00:58:00 -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: force revalidation of directory pointer after seekdir(2) 2018-04-01 23:21:03 -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
ext4.h ext4: add warn_on_error mount option 2018-06-12 23:34:57 -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
extents.c ext4: verify the depth of extent tree in ext4_find_extent() 2018-06-14 12:55:10 -04:00
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: only look at the bg_flags field if it is valid 2018-06-14 00:58:00 -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: do not allow external inodes for inline data 2018-05-22 16:15:24 -04:00
inode.c ext4: bubble errors from ext4_find_inline_data_nolock() up to ext4_iget() 2018-05-22 17:14:07 -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: only look at the bg_flags field if it is valid 2018-06-14 00:58:00 -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 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: remove EXT4_STATE_DIOREAD_LOCK flag 2018-03-22 11:52:10 -04:00
namei.c Refactor support for encrypted symlinks to move common code to fscrypt. 2018-02-04 10:43:12 -08:00
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 ext4: fix fencepost error in check for inode count overflow during resize 2018-05-25 12:51:25 -04:00
super.c ext4: only look at the bg_flags field if it is valid 2018-06-14 00:58:00 -04:00
symlink.c ext4: switch to fscrypt_get_symlink() 2018-01-11 22:10:40 -05:00
sysfs.c ext4: simplify kobject usage 2018-03-30 00:41:34 -04:00
truncate.h ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
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
xattr.c ext4: always verify the magic number in xattr blocks 2018-06-13 00:51:28 -04:00
xattr.h ext4: add extra checks to ext4_xattr_block_get() 2018-03-30 20:04:11 -04:00