In alloc_waiter func, if MALLOC fails, wp is equal to NULL. If now we call memset(wp), segmentation fault will occur. Signed-off-by: Zhiqiang Liu <liuzhiqiang26@xxxxxxxxxx> Signed-off-by: lixiaokeng <lixiaokeng@xxxxxxxxxx> --- multipathd/waiter.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/multipathd/waiter.c b/multipathd/waiter.c index e645766..80e6e6e 100644 --- a/multipathd/waiter.c +++ b/multipathd/waiter.c @@ -33,8 +33,10 @@ static struct event_thread *alloc_waiter (void) struct event_thread *wp; wp = (struct event_thread *)MALLOC(sizeof(struct event_thread)); - memset(wp, 0, sizeof(struct event_thread)); + if (!wp) + return NULL; + memset(wp, 0, sizeof(struct event_thread)); return wp; } -- 1.8.3.1 -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
