[patch] patch

0001-Check-LINK-lc-before-using-it-to-avoid-a-null-pointe.patch (text/plain), 1.36 KB, created by Alex Legler (RETIRED) on 2010-09-09 14:49:23 UTC

From ad771372ac3f2f649a9f3f300c2d51a4701ad9ea Mon Sep 17 00:00:00 2001
From: Alex Legler <[e-mail]>
Date: Thu, 9 Sep 2010 16:37:43 +0200
Subject: [PATCH] Check LINK(lc) before using it to avoid a null-pointer dereference (CVE-2010-3071)

---
 src/irc.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/irc.c b/src/irc.c
index fa98e09..c5f65a2 100644
--- a/src/irc.c
+++ b/src/irc.c
@@ -2449,7 +2449,7 @@ void bip_on_event(bip_t *bip, connection_t *conn)
 	if (err) {
 		if (TYPE(lc) == IRC_TYPE_SERVER) {
 			mylog(LOG_ERROR, "[%s] read_lines error, closing...",
-					LINK(lc)->name);
+					LINK(lc) ? LINK(lc)->name : "?");
 			irc_server_shutdown(LINK(lc)->l_server);
 		} else {
 			mylog(LOG_ERROR, "client read_lines error, closing...");
@@ -2471,7 +2471,7 @@ void bip_on_event(bip_t *bip, connection_t *conn)
 		line = irc_line_new_from_string(line_s);
 		if (!line) {
 			mylog(LOG_ERROR, "[%s] Error in protocol, closing...",
-					LINK(lc)->name);
+					LINK(lc) ? LINK(lc)->name : "?");
 			free(line_s);
 			goto prot_err_lines;
 		}
@@ -2481,7 +2481,7 @@ void bip_on_event(bip_t *bip, connection_t *conn)
 		free(line_s);
 		if (r == ERR_PROTOCOL) {
 			mylog(LOG_ERROR, "[%s] Error in protocol, closing...",
-					LINK(lc)->name);
+					LINK(lc) ? LINK(lc)->name : "?");
 			goto prot_err_lines;
 		}
 		if (r == ERR_AUTH)
-- 
1.7.2