uClibc-0.9.30.1: fix possible NULL pointer dereference (closes #5242)

SVN-Revision: 16304

diff --git a/toolchain/uClibc/patches-0.9.30.1/900-backport_fix_possible_null_ptr_dereference_in_getaddrinfo.patch b/toolchain/uClibc/patches-0.9.30.1/900-backport_fix_possible_null_ptr_dereference_in_getaddrinfo.patch
new file mode 100644 (file)
index 0000000..62563ce
--- /dev/null
+++ b/toolchain/uClibc/patches-0.9.30.1/900-backport_fix_possible_null_ptr_dereference_in_getaddrinfo.patch
@@ -0,0 +1,11 @@
+--- 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;