High7.1Vendor: MediumRed Hat & Ubuntu Linux
check for zero length in DecodeQ931()
CVE-2026-23455 Published Apr 3, 2026
CVE-2026-23455
Affected products & platforms
Red Hat & Ubuntu LinuxUnclassified
Summary
check for zero length in DecodeQ931(). Red Hat rates this moderate (CVSS 7.1). Weakness: CWE-125. Affected package(s): kernel, kernel-rt. Resolved in Red Hat advisory RHSA-2026:26462 — update the affected packages (`sudo dnf update`).
Affected versions
- kernel-0:3.10.0-1160.154.1.el7
- kernel-0:4.18.0-553.126.1.el8_10
- kernel-0:5.14.0-427.134.1.el9_4
- kernel-0:4.18.0-372.198.1.el8_6
- kernel-0:5.14.0-284.176.1.el9_2
- kernel-rt-0:5.14.0-284.176.1.rt14.461.el9_2
- kernel-0:5.14.0-570.120.1.el9_6
- kernel-rt-0:4.18.0-553.126.1.rt7.467.el8_10
- kernel-0:6.12.0-211.18.1.el10_2
- kernel-0:4.18.0-477.150.1.el8_8
- kernel-0:5.14.0-687.12.1.el9_8
Official advisory · high-confidence parse· fetched 1 day ago·verify at source
Fixed versions
- RHSA-2026:26462
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-2026:26462 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 1 day ago·verify at source
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