cdriso: missing null check

diff --git a/libpcsxcore/cdriso.c b/libpcsxcore/cdriso.c
index 9b98fbe..9282430 100644 (file)
--- a/libpcsxcore/cdriso.c
+++ b/libpcsxcore/cdriso.c
@@ -1647,7 +1647,7 @@ int ISOreadTrack(const unsigned char *time, void *buf)
 
        ret = cdimg_read_func(cdHandle, 0, buf, sector);
        if (ret < 12*2 + 2048) {
-               if (multifile && sector >= msf2sec(ti[1].length)) {
+               if (buf && multifile && sector >= msf2sec(ti[1].length)) {
                        // assume a gap not backed by a file
                        memset(buf, 0, CD_FRAMESIZE_RAW);
                        return 0;