]> git.ipfire.org Git - thirdparty/kernel/stable.git/commit
projects / thirdparty / kernel / stable.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 6eca392) | patch
mac: validate mac_partition is within sector
authorKees Cook <keescook@chromium.org>
Fri, 20 Nov 2015 01:18:54 +0000 (17:18 -0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 3 Mar 2016 23:06:49 +0000 (15:06 -0800)
commit7f4f03c4a1e9a4b9679feafe7625a780864a4e76
tree0b48576def279601ba50bc57379c386698671ff3tree | snapshot
parent6eca392d950c5737d02005252b519981d91412fbcommit | diff
mac: validate mac_partition is within sector

commit 02e2a5bfebe99edcf9d694575a75032d53fe1b73 upstream.

If md->signature == MAC_DRIVER_MAGIC and md->block_size == 1023, a single
512 byte sector would be read (secsize / 512). However the partition
structure would be located past the end of the buffer (secsize % 512).

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Jens Axboe <axboe@fb.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
block/partitions/mac.c diff | blob | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git