[MP2T] Prevent divide by zero.

Bug: 11821
Change-Id: I3243c837d84ccbce7d377810a5f381e906aeb1eb
Reviewed-on: https://code.wireshark.org/review/12323
Reviewed-by: Michael Mann <mmann78@netscape.net>

1 files changed, 5 insertions, 0 deletions

diff --git a/wiretap/mp2t.c b/wiretap/mp2t.c
index 0a432d7031..6004bc6475 100644
--- a/wiretap/mp2t.c
+++ b/wiretap/mp2t.c
@@ -366,6 +366,11 @@ mp2t_open(wtap *wth, int *err, gchar **err_info)
         return status;
     }
 
+    if (bitrate == 0) {
+        /* Prevent an eventual divide by zero */
+        return WTAP_OPEN_ERROR;
+    }
+
     if (-1 == file_seek(wth->fh, first, SEEK_SET, err)) {
         return WTAP_OPEN_ERROR;
     }