kernel/bpf/verifier.c in the Linux kernel through 4.14.8 allows local users to cause a denial of service (memory corruption) or possibly have unspecified other impact by leveraging the lack of stack-pointer alignment enforcement.
https://github.com/torvalds/linux/commit/a5ec6ae161d72f01411169a938fa5f8baea16e8f
http://www.openwall.com/lists/oss-security/2017/12/21/2
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a5ec6ae161d72f01411169a938fa5f8baea16e8f
Source: Mitre, NVD
Published: 2017-12-27
Updated: 2025-04-20
Base Score: 7.2
Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C
Severity: High
Base Score: 7.8
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.00123