CVE-2022-1247

An issue found in linux-kernel that leads to a race condition in
rose_connect(). The rose driver uses rose_neigh->use to represent how many
objects are using the rose_neigh. When a user wants to delete a rose_route
via rose_ioctl(), the rose driver calls rose_del_node() and removes
neighbours only if their “count” and “use” are zero.

Bugs

• <https://bugzilla.redhat.com/show_bug.cgi?id=2066799&gt;
• <https://bugzilla.suse.com/show_bug.cgi?id=1199434&gt;

Notes