Description
The sanity_check_ckpt function in fs/f2fs/super.c in the Linux kernel before 4.12.4 does not validate the blkoff and segno arrays, which allows local users to gain privileges via unspecified vectors.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- http://www.securityfocus.com/bid/100215 ↗
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=15d3042a937c13f5d9244241c7a9c8416ff6e82a ↗
- https://bugzilla.redhat.com/show_bug.cgi?id=1481149 ↗
- https://github.com/torvalds/linux/commit/15d3042a937c13f5d9244241c7a9c8416ff6e82a ↗
- https://source.android.com/security/bulletin/2017-08-01 ↗
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.12.4 ↗