| Bug ID |
11740
|
| Summary |
Pointers to deallocated memory when redissecting
|
| Product |
Wireshark
|
| Version |
2.0.0
|
| Hardware |
All
|
| OS |
All
|
| Status |
UNCONFIRMED
|
| Severity |
Normal
|
| Priority |
Low
|
| Component |
Dissection engine (libwireshark)
|
| Assignee |
[email protected]
|
| Reporter |
[email protected]
|
Build Information:
Paste the COMPLETE build information from "Help->About Wireshark", "wireshark
-v", or "tshark -v".
--
In rescan_packets() when ‘redissect’ we call epan_free() which deallocates
memory in wmem_file_scope. If having a selected packet (cf->edt) this have an
array of all data blocks allocated with p_get_proto_data(), which sometimes are
using wmem_file_scope. We will then have an array of pointers to deallocated
memory until the array is rebuilt.
In packet_list_clear() we (may) have code accessing this memory (look in bug
11719 for some discussion about the first attempt to fix this), and this will
give an use-of-deallocated-memory error.
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