CVE-2024-43864
A critical bug in the Linux kernel’s mlx5e driver could cause a system crash when updating certain network entries. The flaw occurs if the kernel fails to allocate a new modify header, leading to a panic during cleanup.
An official fix is available, so this entry is kept for 30 days and then removed automatically.
Who is affected
Linux kernel users, especially those running version 6.11 or earlier, who use the mlx5e network driver.
Real-world impact
An attacker could trigger a kernel panic, causing a denial of service that brings the system down. The crash could be forced remotely by sending crafted network traffic to the affected device.
Why this severity
The CVSS score of 9.8 reflects that the vulnerability is exploitable from any network, requires no privileges or user interaction, and can completely compromise confidentiality, integrity, and availability.
What to do about it
- 01Upgrade the Linux kernel to a version that includes the fix for the mlx5e CT entry update bug (e.g., kernel 6.11 or later).
NVD description indicates the vulnerability has been resolved
Timeline
- Aug 21, 2024 · Aug 21, 2024PublishedDisclosed and added to the National Vulnerability Database.
- Aug 4, 2026 · 2d agoAdvisory updatedThe NVD record was last revised.
- Aug 5, 2026 · 1d agoOfficial fix availableA vendor patch or mitigation now exists — see the remediation steps above.