Re: [Crash-utility] [PATCH] Report error for NULL list_head pointers
----- Original Message -----
From: Rabin Vincent <rabinv(a)axis.com>
If we hit a NULL next pointer on a struct list_head list it means the
list is corrupted.
Yeah, that is true -- although it's always been this way and there's never
been a bug report. I'm curious as to what happened in your case where
you discovered this?
Dave
---
tools.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/tools.c b/tools.c
index 8190d7e..577820d 100644
--- a/tools.c
+++ b/tools.c
@@ -3808,6 +3808,12 @@ do_list(struct list_data *ld)
}
if (next == 0) {
+ if (ld->flags & LIST_HEAD_FORMAT) {
+ error(INFO, "\ninvalid list entry: 0\n");
+ if (close_hq_on_return)
+ hq_close();
+ return -1;
+ }
if (CRASHDEBUG(1))
console("do_list end: next:%lx\n", next);
break;
--
2.7.0