devilhorns pushed a commit to branch master.
commit 0f925220e1054cdde9e6c04a3330c4d9ff9e7ea8
Author: Chris Michael <[email protected]>
Date: Mon Aug 5 13:48:23 2013 +0100
Fix potential double-free of so->answer.
NB: dns_so_submit calls dns_so_reset twice (once at start, once at end
on error). As so_reset will free so->answer the first time through,
add validity check of so->answer for the second iteration.
Signed-off-by: Chris Michael <[email protected]>
---
src/lib/ecore_con/dns.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/lib/ecore_con/dns.c b/src/lib/ecore_con/dns.c
index 7a0d5e1..b4564e5 100644
--- a/src/lib/ecore_con/dns.c
+++ b/src/lib/ecore_con/dns.c
@@ -5525,7 +5525,7 @@ void dns_so_close(struct dns_socket *so) {
void dns_so_reset(struct dns_socket *so) {
- free(so->answer);
+ if (so->answer) free(so->answer);
memset(&so->state, '\0', sizeof *so - offsetof(struct dns_socket,
state));
} /* dns_so_reset() */
--
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