CVEvulnerability
CVE-2017-15126
8.1 HIGH
Official page ↗
- Status
- Modified
- Published
- 2018-01-14
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 8.1 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 9.3 HIGH — AV:N/AC:M/Au:N/C:C/I:C/A:C
- Weaknesses
- CWE-119, CWE-416
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().
Affected configurations
• linux linux kernel (>= 4.11 < 4.13.6)
Related
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=384632e67e0829deb8015ee6ad916b180049d252 Vendor Advisory
- http://www.securityfocus.com/bid/102516 Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:0676 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:1062 Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2017-15126 Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1523481 Issue Tracking, Third Party Advisory
- https://github.com/torvalds/linux/commit/384632e67e0829deb8015ee6ad916b180049d252 Third Party Advisory
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.6 Vendor Advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=384632e67e0829deb8015ee6ad916b180049d252 Vendor Advisory
- http://www.securityfocus.com/bid/102516 Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:0676 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:1062 Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2017-15126 Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1523481 Issue Tracking, Third Party Advisory
- https://github.com/torvalds/linux/commit/384632e67e0829deb8015ee6ad916b180049d252 Third Party Advisory
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.6 Vendor Advisory