High7.0Vendor: MediumRed Hat & Ubuntu Linux
fix error recovery in macvlan_common_newlink()
CVE-2026-23209 Published Feb 14, 2026
CVE-2026-23209
Affected products & platforms
Red Hat & Ubuntu LinuxUnclassified
Summary
fix error recovery in macvlan_common_newlink(). Red Hat rates this moderate (CVSS 7). Weakness: CWE-825. Affected package(s): kernel-rt, kernel. Resolved in Red Hat advisory RHSA-2026:6954 — update the affected packages (`sudo dnf update`).
Affected versions
- kernel-rt-0:5.14.0-70.173.1.rt21.245.el9_0
- kernel-0:5.14.0-70.173.1.el9_0
- kernel-0:5.14.0-570.103.1.el9_6
- kernel-0:4.18.0-305.188.1.el8_4
- kernel-0:5.14.0-284.166.1.el9_2
- kernel-rt-0:5.14.0-284.166.1.rt14.451.el9_2
- kernel-0:4.18.0-553.115.1.el8_10
- kernel-0:5.14.0-427.117.1.el9_4
- kernel-0:4.18.0-372.187.1.el8_6
- kernel-0:5.14.0-611.45.1.el9_7
- kernel-0:4.18.0-477.135.1.el8_8
- kernel-0:4.18.0-193.193.1.el8_2
Official advisory · high-confidence parse· fetched 5 hours ago·verify at source
Fixed versions
- RHSA-2026:6954
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-2026:6954 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 5 hours ago·verify at source
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