It looks like the following two fixes from the mainline kernel are
required to prevent a potential deadlock.
commit 4b70dd57a15d2f4685ac6e38056bad93e81e982f
Author: Jiri Slaby <jirisl...@kernel.org>
Date: Fri Feb 28 12:54:05 2020 +0100
vt: selection, push console lock down
commit e8c75a30a23c6ba63f4ef6895cbf41fd42f21aa2
Author: Jiri Slaby <jirisl...@kernel.org>
Date: Fri Feb 28 12:54:06 2020 +0100
vt: selection, push sel_lock up
The problem was introduced by the fix for CVE-2020-8648:
commit 3bd8c9162241 "ms/vt: selection, close sel_buffer race" in
vzkernel.
I was unable to reproduce the problem in VZ7 though but the code does
look problematic without these fixes.
https://jira.sw.ru/browse/PSBM-121234
Signed-off-by: Evgenii Shatokhin <eshatok...@virtuozzo.com>
_______________________________________________
Devel mailing list
Devel@openvz.org
https://lists.openvz.org/mailman/listinfo/devel
