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Change History

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_m

kernel.org https://git.kernel.org/stable/c/740be3b9a6d73336f8c7d540842d0831dc7a808b [No types assigned]

kernel.org https://git.kernel.org/stable/c/9afe35fdda16e09d5bd3c49a68ba8c680dd678bd [No types assigned]