High7.8Red Hat & Ubuntu Linux
fix tx.buf use-after-free in isotp_sendmsg()
CVE-2026-31474 Published Apr 22, 2026
CVE-2026-31474
Affected products & platforms
Red Hat & Ubuntu LinuxUnclassified
Summary
fix tx.buf use-after-free in isotp_sendmsg(). Red Hat rates this important (CVSS 7.8). Weakness: CWE-364. Affected package(s): kernel. Resolved in Red Hat advisory RHSA-2026:27288 — update the affected packages (`sudo dnf update`).
Affected versions
- kernel-0:5.14.0-687.17.1.el9_8
- kernel-0:6.12.0-55.82.1.el10_0
- kernel-0:6.12.0-211.26.1.el10_2
Official advisory · high-confidence parse· fetched 6 hours ago·verify at source
Fixed versions
- RHSA-2026:27288
Official advisory · high-confidence parse· fetched 6 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 6 hours ago·verify at source
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