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[tor-bugs] #26284 [Core Tor/Tor]: Out-of-bounds smartlist access in protover_compute_vote()
#26284: Out-of-bounds smartlist access in protover_compute_vote()
------------------------------+--------------------------------
Reporter: rl1987 | Owner: (none)
Type: defect | Status: new
Priority: Medium | Milestone: Tor: 0.3.5.x-final
Component: Core Tor/Tor | Version: Tor: unspecified
Severity: Normal | Keywords:
Actual Points: | Parent ID: #26196
Points: | Reviewer:
Sponsor: |
------------------------------+--------------------------------
When compiled with `DEBUG_SMARTLIST`:
{{{
dir/v3_networkstatus: [forking] Jun 03 15:26:03.147 [err]
tor_assertion_failed_: Bug: ./src/common/container.h:70: smartlist_get:
Assertion sl->num_used > idx failed; aborting. (on Tor 0.3.4.1-alpha-dev
b32d8d6025fdc1be)
Jun 03 15:26:03.151 [err] Bug: Assertion sl->num_used > idx failed in
smartlist_get at ./src/common/container.h:70. Stack trace: (on Tor 0.3.4.1
-alpha-dev b32d8d6025fdc1be)
Jun 03 15:26:03.151 [err] Bug: 0 test
0x000000010ffdb108 log_backtrace + 72 (on Tor 0.3.4.1-alpha-dev
b32d8d6025fdc1be)
Jun 03 15:26:03.152 [err] Bug: 1 test
0x0000000110053771 tor_assertion_failed_ + 385 (on Tor 0.3.4.1-alpha-dev
b32d8d6025fdc1be)
Jun 03 15:26:03.152 [err] Bug: 2 test
0x000000010fdd9a7a smartlist_get + 490 (on Tor 0.3.4.1-alpha-dev
b32d8d6025fdc1be)
Jun 03 15:26:03.152 [err] Bug: 3 test
0x000000010fdd8013 protover_compute_vote + 3315 (on Tor 0.3.4.1-alpha-dev
b32d8d6025fdc1be)
Jun 03 15:26:03.153 [err] Bug: 4 test
0x000000010ff41617 networkstatus_compute_consensus + 8823 (on Tor 0.3.4.1
-alpha-dev b32d8d6025fdc1be)
Jun 03 15:26:03.153 [err] Bug: 5 test
0x000000010f76ac5a test_a_networkstatus + 13930 (on Tor 0.3.4.1-alpha-dev
b32d8d6025fdc1be)
Jun 03 15:26:03.154 [err] Bug: 6 test
0x000000010fa20684 testcase_run_bare_ + 308 (on Tor 0.3.4.1-alpha-dev
b32d8d6025fdc1be)
Jun 03 15:26:03.154 [err] Bug: 7 test
0x000000010fa203bc testcase_run_one + 2924 (on Tor 0.3.4.1-alpha-dev
b32d8d6025fdc1be)
Jun 03 15:26:03.154 [err] Bug: 8 test
0x000000010fa21e31 tinytest_main + 2321 (on Tor 0.3.4.1-alpha-dev
b32d8d6025fdc1be)
Jun 03 15:26:03.155 [err] Bug: 9 test
0x000000010fa1dffa main + 2218 (on Tor 0.3.4.1-alpha-dev b32d8d6025fdc1be)
Jun 03 15:26:03.155 [err] Bug: 10 libdyld.dylib
0x00007fff6619f015 start + 1 (on Tor 0.3.4.1-alpha-dev b32d8d6025fdc1be)
Jun 03 15:26:03.155 [err] Bug: 11 ???
0x0000000000000001 0x0 + 1 (on Tor 0.3.4.1-alpha-dev b32d8d6025fdc1be)
[Lost connection!]
[v3_networkstatus FAILED]
}}}
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/26284>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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