| Bug ID |
12302
|
| Summary |
NULL deref for all extcap programs since "Refactor wiretap option block types into a registration system."
|
| Product |
Wireshark
|
| Version |
Git
|
| Hardware |
All
|
| OS |
All
|
| Status |
CONFIRMED
|
| Severity |
Major
|
| Priority |
Low
|
| Component |
Capture file support (libwiretap)
|
| Assignee |
[email protected]
|
| Reporter |
[email protected]
|
| CC |
[email protected]
|
Build Information:
v2.1.0rc0-2505-g6931f58
--
Since d7de3515db98a7444fe527c82de43bfaf550b698 ("Refactor wiretap option block
types into a registration system."), all extcap programs crash on capture.
Somewhere a call to wtap_opttypes_initialize or wtap_register_plugin_types is
needed... see also the comments on https://code.wireshark.org/review/14300
run/extcap/randpktdump --extcap-interface=randpkt --capture --fifo /dev/null
Generating packets: arp
wiretap/wtap_opttypes.c:126:18: runtime error: member access within null
pointer of type 'wtap_opt_register_t' (aka 'struct wtap_opt_register')
SUMMARY: AddressSanitizer: undefined-behavior wiretap/wtap_opttypes.c:126:18 in
ASAN:SIGSEGV
=================================================================
==31635==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000010 (pc
0x7f731abe01c5 bp 0x7fff359e37b0 sp 0x7fff359e3730 T0)
#0 0x7f731abe01c4 in wtap_optionblock_create wiretap/wtap_opttypes.c:126:18
#1 0x7f731a90300c in wtap_dump_init_dumper wiretap/file_access.c:2182:11
#2 0x7f731a901bd1 in wtap_dump_open_ng wiretap/file_access.c:2214:8
#3 0x7f731a901b5c in wtap_dump_open wiretap/file_access.c:2202:9
#4 0x55888a2797c5 in randpkt_example_init
randpkt_core/randpkt_core.c:686:19
#5 0x55888a27594e in main extcap/randpktdump.c:297:4
#6 0x7f73194f470f in __libc_start_main (/usr/lib/libc.so.6+0x2070f)
#7 0x55888a1aede8 in _start (run/extcap/randpktdump+0x20de8)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV wiretap/wtap_opttypes.c:126:18 in
wtap_optionblock_create
==31635==ABORTING
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