High7.0Red Hat & Ubuntu Linux
fix potential race in tcp_v6_syn_recv_sock()
CVE-2026-43198 Published May 6, 2026
CVE-2026-43198
Affected products & platforms
Red Hat & Ubuntu LinuxUnclassified
Summary
fix potential race in tcp_v6_syn_recv_sock(). Red Hat rates this important (CVSS 7). Weakness: CWE-821. Affected package(s): kernel. Resolved in Red Hat advisory RHSA-2026:34094 — update the affected packages (`sudo dnf update`).
Affected versions
- kernel-0:5.14.0-427.135.1.el9_4
- kernel-0:6.12.0-55.84.1.el10_0
- kernel-0:4.18.0-477.150.1.el8_8
- kernel-0:5.14.0-687.20.1.el9_8
- kernel-0:5.14.0-570.125.1.el9_6
- kernel-0:6.12.0-211.28.1.el10_2
Official advisory · high-confidence parse· fetched 4 hours ago·verify at source
Fixed versions
- RHSA-2026:34094
Official advisory · high-confidence parse· fetched 4 hours ago·verify at source
Mitigation checklist
Recommended fix / mitigation
- Update the affected package(s) to the fixed version shipped in RHSA-2026:34094 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 4 hours ago·verify at source
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