fix out-of-bounds reads in __dns_parse

[musl] / src / network / recvmsg.c

diff --git a/src/network/recvmsg.c b/src/network/recvmsg.c
index 5ce37e7..0364162 100644 (file)
--- a/src/network/recvmsg.c
+++ b/src/network/recvmsg.c
@@ -5,7 +5,9 @@
 #include <string.h>
 #include "syscall.h"
 
-static void convert_scm_timestamps(struct msghdr *msg, socklen_t csize)
+hidden void __convert_scm_timestamps(struct msghdr *, socklen_t);
+
+void __convert_scm_timestamps(struct msghdr *msg, socklen_t csize)
 {
        if (SCM_TIMESTAMP == SCM_TIMESTAMP_OLD) return;
        if (!msg->msg_control || !msg->msg_controllen) return;
@@ -58,7 +60,7 @@ ssize_t recvmsg(int fd, struct msghdr *msg, int flags)
        }
 #endif
        r = socketcall_cp(recvmsg, fd, msg, flags, 0, 0, 0);
-       if (r >= 0) convert_scm_timestamps(msg, orig_controllen);
+       if (r >= 0) __convert_scm_timestamps(msg, orig_controllen);
 #if LONG_MAX > INT_MAX
        if (orig) *orig = h;
 #endif