Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: sock_map: fix a NULL pointer dereference in sock_map_link_update_prog() The following race condition could trigger a NULL pointer dereference: sock_map_link_detach(): sock_map_link_update_prog(): mutex_lock(&sockmap_mutex); ... sockmap_link->map = NULL; mutex_unlock(&sockmap_mutex); mutex_lock(&sockmap_mutex); ... sock_map_prog_link_lookup(sockmap_link->map); mutex_unlock(&sockmap_mutex); <continue> Fix it by adding a NULL pointer check. In this specific case, it makes no sense to update a link which is being released.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 699c23f02c65cbfc3e638f14ce0d70c23a2e1f02 before 9afe35fdda16e09d5bd3c49a68ba8c680dd678bd; affected 699c23f02c65cbfc3e638f14ce0d70c23a2e1f02 before 740be3b9a6d73336f8c7d540842d0831dc7a808b |
| Linux / Linux | affected 6.10; unaffected 0 before 6.10; unaffected 6.11.7 through 6.11.*; unaffected 6.12 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/9afe35fdda16e09d5bd3c49a68ba8c680dd678bd
- https://git.kernel.org/stable/c/740be3b9a6d73336f8c7d540842d0831dc7a808b
ADP enrichment
No English description supplied.
No references supplied.