[CRIU] [PATCH] unix: Fix nil dereference in find_queuer_for

[Cyrill Gorcunov]

When walking over unix sockets make sure the
queuer is present before accessing it.

https://jira.sw.ru/browse/PSBM-82796

Reported-by: Vitaly Ostrosablin <vostrosablin at virtuozzo.com>
Signed-off-by: Cyrill Gorcunov <gorcunov at virtuozzo.com>
---
 criu/sk-unix.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/criu/sk-unix.c b/criu/sk-unix.c
index 7f743a9b1..4d1f296f9 100644
--- a/criu/sk-unix.c
+++ b/criu/sk-unix.c
@@ -958,7 +958,7 @@ static struct unix_sk_info *find_queuer_for(int id)
 	struct unix_sk_info *ui;
 
 	list_for_each_entry(ui, &unix_sockets, list) {
-		if (ui->queuer->ue->id == id)
+		if (ui->queuer && ui->queuer->ue->id == id)
 			return ui;
 	}
 
-- 
2.14.3