CVE-2026-45977

kernel: fbnic: close fw_log race between users and teardown

Loading…

Severity

Unknown

Red Hat Product Security

—

CVSS

Review impact separately from score.

Published · May 27, 2026

Updated · June 28, 2026

Description

A flaw was found in the Linux kernel's fbnic (Fibre Channel over Ethernet Network Interface Card) driver. A race condition exists in the handling of firmware logs, where the log can be freed while still being accessed. This can lead to a use-after-free vulnerability, potentially allowing an attacker to cause a system crash or denial of service.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CWE-364 · Signal Handler Race Condition