Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix CT entry update leaks of modify header context The cited commit allocates a new modify header to replace the old one when updating CT entry. But if failed to allocate a new one, eg. exceed the max number firmware can support, modify header will be an error pointer that will trigger a panic when deallocating it. And the old modify header point is copied to old attr. When the old attr is freed, the old modify header is lost. Fix it by restoring the old attr to attr when failed to allocate a new modify header context. So when the CT entry is freed, the right modify header context will be freed. And the panic of accessing error pointer is also fixed.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 6.3, < 6.6.45 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/025f2b85a5e5a46df14ecf162c3c80a957a36d0bPatch
- https://git.kernel.org/stable/c/89064d09c56b44c668509bf793c410484f63f5adPatch
- https://git.kernel.org/stable/c/daab2cc17b6b6ab158566bba037e9551fd432b59Patch
FAQ
What is CVE-2024-43864?
CVE-2024-43864 is a vulnerability with a CVSS score of 9.8 (CRITICAL). In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix CT entry update leaks of modify header context The cited commit allocates a new modify header to replace the old on...
How severe is CVE-2024-43864?
CVE-2024-43864 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2024-43864?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.