High7.8Red Hat & Ubuntu Linux
Linux kernel: Use-After-Free in net/gro due to improper handling of zerocopy skbs
CVE-2026-46323 Published May 19, 2026
CVE-2026-46323
Affected products & platforms
Red Hat & Ubuntu LinuxUnclassified
Summary
Linux kernel: Use-After-Free in net/gro due to improper handling of zerocopy skbs. Red Hat rates this important (CVSS 7.8). Weakness: CWE-123. Affected package(s): kernel. Resolved in Red Hat advisory RHSA-2026:27708 — update the affected packages (`sudo dnf update`).
Affected versions
- kernel-0:5.14.0-570.123.1.el9_6
- kernel-0:6.12.0-55.82.1.el10_0
- kernel-0:5.14.0-427.132.1.el9_4
Official advisory · high-confidence parse· fetched 1 day ago·verify at source
Fixed versions
- RHSA-2026:27708
Official advisory · high-confidence parse· fetched 1 day ago·verify at source
Mitigation checklist
Recommended fix / mitigation
- Update the affected package(s) to the fixed version shipped in RHSA-2026:27708 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 1 day ago·verify at source
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