[toolchain] uClibc: fix a crash in __read_etc_hosts_r() that occurs if more than five hostnames follow a dotted quad in /etc/hosts

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27131 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 10 insertions, 0 deletions

diff --git a/toolchain/uClibc/patches-0.9.32/131-inet-fix-__read_etc_hosts_r-segfault.patch b/toolchain/uClibc/patches-0.9.32/131-inet-fix-__read_etc_hosts_r-segfault.patch
new file mode 100644
index 0000000000..bd9ed380a6
--- /dev/null
+++ b/toolchain/uClibc/patches-0.9.32/131-inet-fix-__read_etc_hosts_r-segfault.patch
@@ -0,0 +1,10 @@
+--- a/libc/inet/resolv.c
++++ b/libc/inet/resolv.c
+@@ -1631,6 +1631,7 @@ int attribute_hidden __read_etc_hosts_r(
+ 	 * struct in[6]_addr
+ 	 * char line_buffer[BUFSZ+];
+ 	 */
++	memset(buf, 0, buflen);
+ 	parser->data = buf;
+ 	parser->data_len = aliaslen;
+ 	parser->line_len = buflen - aliaslen;