CVE-2026-31639
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
36/100
Published: 2026-04-24
Modified: 2026-11-11
First seen: 2026-11-06
Status: active
Attack Surface
Low Complexity
No Interaction
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
None
I:
None
A:
High
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 $
Affected Software (15)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | f3441d4125fc98995858550a5521b8d7daf0504a < f1a7a3ab0f35f83cf11bba906b9e948cf3788c28 |
| Linux | Linux | f3441d4125fc98995858550a5521b8d7daf0504a < e6b7943c5dc875647499da09bf4d50a8557ab0c3 |
| Linux | Linux | f3441d4125fc98995858550a5521b8d7daf0504a < 2e6ef713b1598f6acd7f302fa6b12b6731c89914 |
| Linux | Linux | f3441d4125fc98995858550a5521b8d7daf0504a < 978108902ee4ef2b348ff7ec36ad014dc5bc6dc6 |
| Linux | Linux | f3441d4125fc98995858550a5521b8d7daf0504a < d666540d217e8d420544ebdfbadeedd623562733 |
| Linux | Linux | 6.2 |
| linux | linux_kernel | 6.2.1 – 6.6.135 |
| linux | linux_kernel | 6.2 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |