The commit is pushed to "branch-rh7-3.10.0-1127.18.2.vz7.163.x-ovz" and will appear at https://src.openvz.org/scm/ovz/vzkernel.git after rh7-3.10.0-1127.18.2.vz7.163.27 ------> commit 9c144d0325cefda39adb3736d6f5538e45e778a4 Author: Valeriy Vdovin <valeriy.vdo...@virtuozzo.com> Date: Tue Sep 22 10:32:30 2020 +0300
cgroup: fixed NULL-pointer dereference in cgroup_release_agent The fix checks that ve->init_task is not referenced during warning message decision if ve == ve0, because ve0 init_task is always NULL. https://jira.sw.ru/browse/PSBM-107673 Signed-off-by: Valeriy Vdovin <valeriy.vdo...@virtuozzo.com> --- kernel/cgroup.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/cgroup.c b/kernel/cgroup.c index 691505c..27d7a5e 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -5934,7 +5934,7 @@ void cgroup_release_agent(struct work_struct *work) envp, UMH_WAIT_EXEC, NULL, NULL, NULL); ve_task = ve->init_task; - if (err < 0 && (!(ve_task->flags & PF_EXITING))) + if (err < 0 && (ve == &ve0 || !(ve_task->flags & PF_EXITING))) pr_warn_ratelimited("cgroup release_agent " "%s %s failed: %d\n", agentbuf, pathbuf, err); _______________________________________________ Devel mailing list Devel@openvz.org https://lists.openvz.org/mailman/listinfo/devel