CVE-2026-31639

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-31639
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 $

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/2e6ef713b1598f6acd7f302fa6b12b6731c89914 Patch
https://git.kernel.org/stable/c/978108902ee4ef2b348ff7ec36ad014dc5bc6dc6 Patch
https://git.kernel.org/stable/c/d666540d217e8d420544ebdfbadeedd623562733 Patch
https://git.kernel.org/stable/c/e6b7943c5dc875647499da09bf4d50a8557ab0c3 Patch
https://git.kernel.org/stable/c/f1a7a3ab0f35f83cf11bba906b9e948cf3788c28 Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:*
History

27 Apr 2026, 20:20

Type Values Removed Values Added
First Time Linux
Linux linux Kernel
References () https://git.kernel.org/stable/c/2e6ef713b1598f6acd7f302fa6b12b6731c89914 - () https://git.kernel.org/stable/c/2e6ef713b1598f6acd7f302fa6b12b6731c89914 - Patch
References () https://git.kernel.org/stable/c/978108902ee4ef2b348ff7ec36ad014dc5bc6dc6 - () https://git.kernel.org/stable/c/978108902ee4ef2b348ff7ec36ad014dc5bc6dc6 - Patch
References () https://git.kernel.org/stable/c/d666540d217e8d420544ebdfbadeedd623562733 - () https://git.kernel.org/stable/c/d666540d217e8d420544ebdfbadeedd623562733 - Patch
References () https://git.kernel.org/stable/c/e6b7943c5dc875647499da09bf4d50a8557ab0c3 - () https://git.kernel.org/stable/c/e6b7943c5dc875647499da09bf4d50a8557ab0c3 - Patch
References () https://git.kernel.org/stable/c/f1a7a3ab0f35f83cf11bba906b9e948cf3788c28 - () https://git.kernel.org/stable/c/f1a7a3ab0f35f83cf11bba906b9e948cf3788c28 - Patch
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
CPE cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*
CWE NVD-CWE-Other

24 Apr 2026, 15:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-04-24 15:16

Updated : 2026-06-17 10:34

NVD link : CVE-2026-31639

Mitre link : CVE-2026-31639

CVE.ORG link : CVE-2026-31639

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
NVD-CWE-Other