High7.5Vendor: MediumRed Hat & Ubuntu Linux
fix slab-use-after-free in __inet_lookup_established
CVE-2026-31669 Published Apr 24, 2026
CVE-2026-31669
Affected products & platforms
Red Hat & Ubuntu LinuxUnclassified
Summary
fix slab-use-after-free in __inet_lookup_established. Red Hat rates this moderate (CVSS 7.5). Weakness: CWE-763. Affected package(s): kernel, kernel-rt. Resolved in Red Hat advisory RHSA-2026:27288 — update the affected packages (`sudo dnf update`).
Affected versions
- kernel-0:6.12.0-55.84.1.el10_0
- kernel-0:5.14.0-427.134.1.el9_4
- kernel-0:5.14.0-687.17.1.el9_8
- kernel-rt-0:5.14.0-284.178.1.rt14.463.el9_2
- kernel-0:4.18.0-477.150.1.el8_8
- kernel-0:5.14.0-570.125.1.el9_6
- kernel-0:5.14.0-284.178.1.el9_2
- kernel-0:4.18.0-553.134.1.el8_10
- kernel-0:6.12.0-211.26.1.el10_2
- kernel-rt-0:4.18.0-553.134.1.rt7.475.el8_10
Official advisory · high-confidence parse· fetched 5 hours ago·verify at source
Fixed versions
- RHSA-2026:27288
Official advisory · high-confidence parse· fetched 5 hours ago·verify at source
Mitigation checklist
Recommended fix / mitigation
- Update the affected package(s) to the fixed version shipped in RHSA-2026:27288 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 5 hours ago·verify at source
Discussion(0)
No comments yet. Share field notes, upgrade gotchas, or questions — verify against the vendor advisory before acting on community advice.
Sign in to join the discussion.