Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected f3441d4125fc98995858550a5521b8d7daf0504a before f1a7a3ab0f35f83cf11bba906b9e948cf3788c28; affected f3441d4125fc98995858550a5521b8d7daf0504a before e6b7943c5dc875647499da09bf4d50a8557ab0c3; affected f3441d4125fc98995858550a5521b8d7daf0504a before 2e6ef713b1598f6acd7f302fa6b12b6731c89914; affected f3441d4125fc98995858550a5521b8d7daf0504a before 978108902ee4ef2b348ff7ec36ad014dc5bc6dc6; affected f3441d4125fc98995858550a5521b8d7daf0504a before d666540d217e8d420544ebdfbadeedd623562733 |
| Linux / Linux | affected 6.2; unaffected 0 before 6.2; unaffected 6.6.135 through 6.6.*; unaffected 6.12.82 through 6.12.*; unaffected 6.18.23 through 6.18.*; unaffected 6.19.13 through 6.19.*; unaffected 7.0 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/f1a7a3ab0f35f83cf11bba906b9e948cf3788c28
- https://git.kernel.org/stable/c/e6b7943c5dc875647499da09bf4d50a8557ab0c3
- https://git.kernel.org/stable/c/2e6ef713b1598f6acd7f302fa6b12b6731c89914
- https://git.kernel.org/stable/c/978108902ee4ef2b348ff7ec36ad014dc5bc6dc6
- https://git.kernel.org/stable/c/d666540d217e8d420544ebdfbadeedd623562733