CVE-2024-43864
MEDIUM EPSS 10.8%
Published Aug 21, 20241y ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Published Aug 21, 2024 1y ago
Last Modified Jun 17, 2026 2w ago
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 Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High
Threat Intelligence
EPSS Exploit Probability
10.8% percentile
Exploit & Patch Status
No Known Exploit
Patch Available
Weaknesses 1
CWE-416 Use After Free Memory Safety
Affected Products 3
References 3
- git.kernel.org https://git.kernel.org/stable/c/025f2b85a5e5a46df14ecf162c3c80a957a36d0b
- git.kernel.org https://git.kernel.org/stable/c/89064d09c56b44c668509bf793c410484f63f5ad
- git.kernel.org https://git.kernel.org/stable/c/daab2cc17b6b6ab158566bba037e9551fd432b59
Remediation
- git.kernel.org https://git.kernel.org/stable/c/025f2b85a5e5a46df14ecf162c3c80a957a36d0b
- git.kernel.org https://git.kernel.org/stable/c/89064d09c56b44c668509bf793c410484f63f5ad
- git.kernel.org https://git.kernel.org/stable/c/daab2cc17b6b6ab158566bba037e9551fd432b59