CVE-2026-43463
MEDIUM severity · CVSS 5.5 · CWE-476
5.5CVSS MEDIUM
Summary
In the Linux kernel, the following vulnerability has been resolved: rxrpc, afs: Fix missing error pointer check after rxrpc_kernel_lookup_peer() rxrpc_kernel_lookup_peer() can also return error pointers in addition to NULL, so just checking for NULL is not sufficient. Fix this by: (1) Changing rxrpc_kernel_lookup_peer() to return -ENOMEM rather than NULL on allocation failure. (2) Making the callers in afs use IS_ERR() and PTR_ERR() to pass on the error code returned.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/4245a79003adf30e67f8e9060915bd05cb31d142 ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/4245a79003adf30e67f8e9060915bd05cb31d142Patch
- https://git.kernel.org/stable/c/54331c5dcc6d97683d7ca2788e7ef9c9505e1477Patch
- https://git.kernel.org/stable/c/d55fa7cd4b19ba91b34b307d769c149e56ad0a75Patch
- https://git.kernel.org/stable/c/d854c93b12f2076c564f595b41b93b02fd42a0f9