[PATCH]: runp->ifa_addr can be NULL. Backport of r24336. diff -Narup uClibc-0.9.30.1.orig/libc/inet/getaddrinfo.c uClibc-0.9.30.1/libc/inet/getaddrinfo.c --- uClibc-0.9.30.1.orig/libc/inet/getaddrinfo.c 2009-02-26 21:49:14.000000000 +0900 +++ uClibc-0.9.30.1/libc/inet/getaddrinfo.c 2009-03-06 00:59:23.000000000 +0900 @@ -187,6 +187,8 @@ static unsigned __check_pf(void) } 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;