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openwrt-xburst/toolchain/uClibc/patches-0.9.30.1/900-backport_fix_possible_null_ptr_dereference_in_getaddrinfo.patch
juhosg 57b3ee7bff [toolchain] uClibc-0.9.30.1: fix possible NULL pointer dereference (closes #5242)
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@16304 3c298f89-4303-0410-b956-a3cf2f4a3e73
2009-06-03 09:45:00 +00:00

12 lines
296 B
Diff

--- a/libc/inet/getaddrinfo.c
+++ b/libc/inet/getaddrinfo.c
@@ -187,6 +187,8 @@
}
for (runp = ifa; runp != NULL; runp = runp->ifa_next) {
+ if (runp->ifa_addr == NULL)
+ continue;
#if defined __UCLIBC_HAS_IPV4__
if (runp->ifa_addr->sa_family == PF_INET)
seen |= SEEN_IPV4;