CVE-2026-43463
rxrpc, afs: Fix missing error pointer check after rxrpc_kernel_lookup_peer()
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.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| Linux Linux |
≥ 72904d7b9bfbf2dd146254edea93958bc35bbbfe; < d854c93b12f2076c564f595b41b93b02fd42a0f9 (affected, git) ≥ 72904d7b9bfbf2dd146254edea93958bc35bbbfe; < d55fa7cd4b19ba91b34b307d769c149e56ad0a75 (affected, git) ≥ 72904d7b9bfbf2dd146254edea93958bc35bbbfe; < 54331c5dcc6d97683d7ca2788e7ef9c9505e1477 (affected, git) ≥ 72904d7b9bfbf2dd146254edea93958bc35bbbfe; < 4245a79003adf30e67f8e9060915bd05cb31d142 (affected, git) 056fc740be000d39a7dba700a935f3bbfbc664e6 (affected, git) ≥ 6.7.3; < 6.8 (affected, semver) Other versions: unaffected |
CNA: Linux |
| Linux Linux |
6.8 (affected) ≥ 0; < 6.8 (unaffected, semver) ≥ 6.12.114; ≤ 6.12.* (unaffected, semver) ≥ 6.18.19; ≤ 6.18.* (unaffected, semver) ≥ 6.19.9; ≤ 6.19.* (unaffected, semver) ≥ 7.0; ≤ * (unaffected, original_commit_for_fix) Other versions: affected |
CNA: Linux |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
No CVSS assessment reported. An unscored record is not a low-severity determination.
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://git.kernel.org/stable/c/d854c93b12f2076c564f595b41b93b02fd42a0f9CNA: Linux
- https://git.kernel.org/stable/c/d55fa7cd4b19ba91b34b307d769c149e56ad0a75CNA: Linux
- https://git.kernel.org/stable/c/54331c5dcc6d97683d7ca2788e7ef9c9505e1477CNA: Linux
- https://git.kernel.org/stable/c/4245a79003adf30e67f8e9060915bd05cb31d142CNA: Linux
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