https://github.com/torvalds/linux
Revision 71755ee5350b63fb1f283de8561cdb61b47f4d1d authored by Linus Torvalds on 02 August 2018, 15:43:35 UTC, committed by Linus Torvalds on 02 August 2018, 16:32:23 UTC
The squashfs fragment reading code doesn't actually verify that the
fragment is inside the fragment table.  The end result _is_ verified to
be inside the image when actually reading the fragment data, but before
that is done, we may end up taking a page fault because the fragment
table itself might not even exist.

Another report from Anatoly and his endless squashfs image fuzzing.

Reported-by: Анатолий Тросиненко <anatoly.trosinenko@gmail.com>
Acked-by:: Phillip Lougher <phillip.lougher@gmail.com>,
Cc: Willy Tarreau <w@1wt.eu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent 6b47037
History
Tip revision: 71755ee5350b63fb1f283de8561cdb61b47f4d1d authored by Linus Torvalds on 02 August 2018, 15:43:35 UTC
squashfs: more metadata hardening
Tip revision: 71755ee
File Mode Size
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LICENSES
arch
block
certs
crypto
drivers
firmware
fs
include
init
ipc
kernel
lib
mm
net
samples
scripts
security
sound
tools
usr
virt
.clang-format -rw-r--r-- 12.8 KB
.cocciconfig -rw-r--r-- 59 bytes
.get_maintainer.ignore -rw-r--r-- 31 bytes
.gitattributes -rw-r--r-- 30 bytes
.gitignore -rw-r--r-- 1.5 KB
.mailmap -rw-r--r-- 9.3 KB
COPYING -rw-r--r-- 423 bytes
CREDITS -rw-r--r-- 96.3 KB
Kbuild -rw-r--r-- 2.2 KB
Kconfig -rw-r--r-- 321 bytes
MAINTAINERS -rw-r--r-- 449.5 KB
Makefile -rw-r--r-- 58.2 KB
README -rw-r--r-- 800 bytes

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