Null-dereference READ in quic::QuicSentPacketManager::OnAckFrameEnd |
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Issue descriptionDetailed report: https://clusterfuzz.com/testcase?key=5752054753263616 Fuzzer: libFuzzer_net_quic_stream_factory_fuzzer Job Type: libfuzzer_chrome_msan Platform Id: linux Crash Type: Null-dereference READ Crash Address: 0x000000000000 Crash State: quic::QuicSentPacketManager::OnAckFrameEnd quic::QuicConnection::OnAckRange quic::QuicFramer::ProcessIetfAckFrame Sanitizer: memory (MSAN) Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_msan&range=564617:564643 Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5752054753263616 Issue filed automatically. See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reference.md for more information.
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Jun 7 2018
Automatically adding ccs based on OWNERS file / target commit history. If this is incorrect, please add ClusterFuzz-Wrong label.
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Jun 7 2018
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/60637aee0733db686859db89ce72b948364cb20c (Landing Recent QUIC changes until Fri May 25 16:11:25 2018 +0000). If this is incorrect, please let us know why and apply the Test-Predator-Wrong-CLs label. If you aren't the correct owner for this issue, please unassign yourself as soon as possible so it can be re-triaged.
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Jun 7 2018
Similar to crbug.com/850083 and crbug.com/850476 . Probably not a security issue since this code is guarded behind a flag that is default disabled. fkastenholz to confirm.
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Jun 8 2018
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Jun 12 2018
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Jun 22 2018
ClusterFuzz has detected this issue as fixed in range 569395:569417. Detailed report: https://clusterfuzz.com/testcase?key=5752054753263616 Fuzzer: libFuzzer_net_quic_stream_factory_fuzzer Job Type: libfuzzer_chrome_msan Platform Id: linux Crash Type: Null-dereference READ Crash Address: 0x000000000000 Crash State: quic::QuicSentPacketManager::OnAckFrameEnd quic::QuicConnection::OnAckRange quic::QuicFramer::ProcessIetfAckFrame Sanitizer: memory (MSAN) Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_msan&range=564617:564643 Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_msan&range=569395:569417 Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5752054753263616 See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reference.md for more information. If you suspect that the result above is incorrect, try re-doing that job on the test case report page.
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Jun 22 2018
ClusterFuzz testcase 5752054753263616 is verified as fixed, so closing issue as verified. If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue. |
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Comment 1 by ClusterFuzz
, Jun 7 2018Labels: Test-Predator-Auto-Components