Description
The check_alu_op function in kernel/bpf/verifier.c in the Linux kernel through 4.4 allows local users to cause a denial of service (memory corruption) or possibly have unspecified other impact by leveraging incorrect sign extension.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
through 4.4affected
References
- https://www.exploit-db.com/exploits/45058/ ↗
- https://github.com/torvalds/linux/commit/95a762e2c8c942780948091f8f2a4f32fce1ac6f ↗
- https://usn.ubuntu.com/3619-2/ ↗
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1454 ↗
- https://usn.ubuntu.com/3633-1/ ↗
- http://www.securityfocus.com/bid/102288 ↗
- https://www.exploit-db.com/exploits/44298/ ↗
- https://www.exploit-db.com/exploits/45010/ ↗
- https://www.debian.org/security/2017/dsa-4073 ↗
- https://usn.ubuntu.com/usn/usn-3523-2/ ↗
- http://openwall.com/lists/oss-security/2017/12/21/2 ↗
- https://usn.ubuntu.com/3619-1/ ↗
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=95a762e2c8c942780948091f8f2a4f32fce1ac6f ↗
- https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=a6132276ab5dcc38b3299082efeb25b948263adb ↗