CVE-2026-45977
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.
Understanding the Weakness (CWE)
Integrity,Confidentiality,Availability
Technical Impact: Modify Application Data; Modify Memory; DoS: Crash, Exit, or Restart; Execute Unauthorized Code or Commands
It may be possible to cause data corruption and possibly execute arbitrary code by modifying global variables or data structures at unexpected times, violating the assumptions of code that uses this global data.
Access Control
Technical Impact: Gain Privileges or Assume Identity
If a signal handler interrupts code that is executing with privileges, it may be possible that the signal handler will also be executed with elevated privileges, possibly making subsequent exploits more severe.
Frequently Asked Questions
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