Referencing upstream fixes commit
dcf23ac3e846ca0cf626c155a0e3fcbbcf4fae8a ("locks: reinstate
locks_delete_block optimization") and commit
6d390e4b5d48ec03bb87e63cf0a2bff5f4e116da ("locks: fix a potential
use-after-free problem when wakeup a waiter") and possibly address
CVE-2019-19769.
Please apply to all relevant stable trees including 5.4, 4.19 and below.
Confirmed they apply cleanly to 5.4 and 4.19.
Signed-off-by: Mark Salyzyn <salyzyn@xxxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Cc: kernel-team@xxxxxxxxxxx
