Medium5.3Red Hat & Ubuntu Linux
Linux kernel: Denial of Service in Bluetooth HCI UART driver via null pointer dereference
CVE-2026-23146 Published Feb 14, 2026
CVE-2026-23146
Affected products & platforms
Red Hat & Ubuntu LinuxUnclassified
Summary
Linux kernel: Denial of Service in Bluetooth HCI UART driver via null pointer dereference. Red Hat rates this moderate (CVSS 5.3). Weakness: CWE-476. Affected package(s): kernel. Resolved in Red Hat advisory RHSA-2025:20095 — update the affected packages (`sudo dnf update`).
Affected versions
- kernel-0:6.12.0-124.8.1.el10_1
- kernel-0:5.14.0-611.5.1.el9_7
Official advisory · high-confidence parse· fetched 1 day ago·verify at source
Fixed versions
- RHSA-2025:20095
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-2025:20095 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 1 day ago·verify at source
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