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 products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
f3441d4125fc98995858550a5521b8d7daf0504a to < f1a7a3ab0f35f83cf11bba906b9e948cf3788c28affectedf3441d4125fc98995858550a5521b8d7daf0504a to < e6b7943c5dc875647499da09bf4d50a8557ab0c3affectedf3441d4125fc98995858550a5521b8d7daf0504a to < 2e6ef713b1598f6acd7f302fa6b12b6731c89914affectedf3441d4125fc98995858550a5521b8d7daf0504a to < 978108902ee4ef2b348ff7ec36ad014dc5bc6dc6affectedf3441d4125fc98995858550a5521b8d7daf0504a to < d666540d217e8d420544ebdfbadeedd623562733affected
Linux Linux
Default version status: affected
6.2affected0 to < 6.2unaffected6.6.135 to ≤ 6.6.*unaffected6.12.82 to ≤ 6.12.*unaffected6.18.23 to ≤ 6.18.*unaffected6.19.13 to ≤ 6.19.*unaffected7.0 to ≤ *unaffected
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 ↗