diff options
Diffstat (limited to 'wiretap/i4btrace.c')
| -rw-r--r-- | wiretap/i4btrace.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/wiretap/i4btrace.c b/wiretap/i4btrace.c index e4155b5e6b..ac2336ce40 100644 --- a/wiretap/i4btrace.c +++ b/wiretap/i4btrace.c @@ -145,6 +145,16 @@ static gboolean i4btrace_read(wtap *wth, int *err, gchar **err_info, return FALSE; } length = hdr.length - (guint32)sizeof(hdr); + if (length > WTAP_MAX_PACKET_SIZE) { + /* + * Probably a corrupt capture file; don't blow up trying + * to allocate space for an immensely-large packet. + */ + *err = WTAP_ERR_BAD_RECORD; + *err_info = g_strdup_printf("i4btrace: File has %u-byte packet, bigger than maximum of %u", + length, WTAP_MAX_PACKET_SIZE); + return FALSE; + } wth->phdr.len = length; wth->phdr.caplen = length; |