Description: UAF in bluetooth
References:
 https://www.openwall.com/lists/oss-security/2021/09/15/4
 https://bugzilla.suse.com/show_bug.cgi?id=1190023
 https://lore.kernel.org/lkml/20210714031733.1395549-1-bobo.shaobowang@huawei.com/
Notes:
 carnil> With the presence of 3af70b39fa2d ("Bluetooth: check for zapped
 carnil> sk before connecting") in 5.13-rc1 (and 5.10.38, 4.19.191) this
 carnil> bug is not easy to trigger itself.
Bugs:
upstream:
5.10-upstream-stable:
4.19-upstream-stable:
4.9-upstream-stable:
sid:
5.10-bullseye-security:
4.19-buster-security:
4.9-stretch-security: