Wireshark · Wireshark-bugs: [Wireshark-bugs] [Bug 13231] Buildbot crash output: fuzz-2016-12-09-20162.pcap

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Comment # 9 on bug 13231 from Gerald Combs

(In reply to Guy Harris from comment #2)
> fd_head comes from a hash table; most inserts in those hash table are of
> fd_heads allocated with g_slice_new0(), which should clear the entire
> structure, but fragment_start_seq_check() does
> 
>                 /* Create list-head. */
>                 fd_head = g_slice_new(fragment_head);
>                 fd_head->next = NULL;
>                 fd_head->datalen = tot_len;
>                 fd_head->offset = 0;
>                 fd_head->fragment_nr_offset = 0;
>                 fd_head->len = 0; 
>                 fd_head->flags = FD_BLOCKSEQUENCE|FD_DATALEN_SET;
>                 fd_head->tvb_data = NULL;
>                 fd_head->reassembled_in = 0;
>                 fd_head->reas_in_layer_num = 0;
>                 fd_head->error = NULL;
>                                                                             
> 
>                 insert_fd_head(table, fd_head, pinfo, id, data);
> 
> which doesn't clear it.

I'm assuming that this doesn't lead to any sort of memory exception or crash
and therefore doesn't require a security advisory.

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