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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-31639 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix key reference count leak from call->key When creating a client call in rxrpc_alloc_client_call(), the code obtains a reference to the key. This is never cleaned up and gets leaked when the call is destroyed. Fix this by freeing call->key in rxrpc_destroy_call(). Before the patch, it shows the key reference counter elevated: $ cat /proc/keys | grep afs@54321 1bffe9cd I--Q--i 8053480 4169w 3b010000 1000 1000 rxrpc afs@54321: ka $ After the patch, the invalidated key is removed when the code exits: $ cat /proc/keys | grep afs@54321 $


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/2e6ef713b1598f6acd7f302fa6b12b6731c89914 kernel.org Patch 
https://git.kernel.org/stable/c/978108902ee4ef2b348ff7ec36ad014dc5bc6dc6 kernel.org Patch 
https://git.kernel.org/stable/c/d666540d217e8d420544ebdfbadeedd623562733 kernel.org Patch 
https://git.kernel.org/stable/c/e6b7943c5dc875647499da09bf4d50a8557ab0c3 kernel.org Patch 
https://git.kernel.org/stable/c/f1a7a3ab0f35f83cf11bba906b9e948cf3788c28 kernel.org Patch 

Weakness Enumeration

CWE-ID CWE Name Source
NVD-CWE-Other Other cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-31639
NVD Published Date:
04/24/2026
NVD Last Modified:
04/27/2026
Source:
kernel.org