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Back to active CVEs
Unknown severity · Source severity not reportedCVE-2026-43463

rxrpc, afs: Fix missing error pointer check after rxrpc_kernel_lookup_peer()CVE-2026-43463

Answer in brief

CVE-2026-43463 records a Unknown severity vulnerability in rxrpc, afs: Fix missing error pointer check after rxrpc_kernel_lookup_peer(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published May 8, 2026Updated Oct 21, 2026Source checked Oct 21, 2026First seen by HOL Oct 21, 2026Material review Oct 21, 2026
Upstream Advisory

Key facts

Risk
Unknown severitySource severity not reported
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Linux/Linuxgeneric>=72904d7b9bfbf2dd146254edea93958bc35bbbfe <d854c93b12f2076c564f595b41b93b02fd42a0f9 || >=72904d7b9bfbf2dd146254edea93958bc35bbbfe <d55fa7cd4b19ba91b34b307d769c149e56ad0a75 || >=72904d7b9bfbf2dd146254edea93958bc35bbbfe <54331c5dcc6d97683d7ca2788e7ef9c9505e1477 || >=72904d7b9bfbf2dd146254edea93958bc35bbbfe <4245a79003adf30e67f8e9060915bd05cb31d142 || 056fc740be000d39a7dba700a935f3bbfbc664e6 || >=6.7.3 <6.8d854c93b12f2076c564f595b41b93b02fd42a0f9, d55fa7cd4b19ba91b34b307d769c149e56ad0a75, 54331c5dcc6d97683d7ca2788e7ef9c9505e1477, 4245a79003adf30e67f8e9060915bd05cb31d142, 6.8
Linux/Linuxgeneric6.8Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
  2. 2Review the reported fix. Update Linux/Linux to d854c93b12f2076c564f595b41b93b02fd42a0f9 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    May 8, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 21, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 21, 2026

Sources and claim methodology

  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
Not reported
Source
CVE List V5
Source checked
Oct 21, 2026
References
4 linked sources
Open source record