CVE-2017-15126 | BDVDB-2026-95249 Detail
Linux Kernel before 4.13.6
Description#
A use-after-free flaw was found in fs/userfaultfd.c in the Linux kernel before 4.13.6. The issue is related to the handling of fork failure when dealing with event messages. Failure to fork correctly can lead to a situation where a fork event will be removed from an already freed list of events with userfaultfd_ctx_put().
Impact#
No impact statement in the source data.
Weaknesses#
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References#
- http://www.securityfocus.com/bid/102516
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=384632e67e0829deb8015ee6ad916b180049d252
- https://bugzilla.redhat.com/show_bug.cgi?id=1523481
- https://access.redhat.com/errata/RHSA-2018:1062
- https://github.com/torvalds/linux/commit/384632e67e0829deb8015ee6ad916b180049d252
- https://access.redhat.com/errata/RHSA-2018:0676
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.6
- https://access.redhat.com/security/cve/CVE-2017-15126
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.