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Null-dereference READ in net::DnsTransactionImpl::DoCallback |
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Issue descriptionDetailed report: https://clusterfuzz.com/testcase?key=6372972121292800 Fuzzer: libFuzzer_net_host_resolver_impl_fuzzer Job Type: libfuzzer_chrome_asan Platform Id: linux Crash Type: Null-dereference READ Crash Address: 0x000000000008 Crash State: net::DnsTransactionImpl::DoCallback base::debug::TaskAnnotator::RunTask base::MessageLoop::RunTask Sanitizer: address (ASAN) Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=503770:503839 Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6372972121292800 Issue filed automatically. See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reproducing.md for more information.
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Oct 21 2017
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/01d1d1c15c54f84470463190d2da98e5b6755d97 (HostResolverImpl fuzzer fixes). If this is incorrect, please remove the owner and apply the Test-Predator-Wrong-CLs label.
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Oct 23 2017
My CL was just fixing the fuzzer, it didn't introduce the bug. This looks like it might be the same crash as issue 768150 , but I'll have to look at it more to be sure.
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Oct 23 2017
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Nov 1 2017
ClusterFuzz has detected this issue as fixed in range 512844:512867. Detailed report: https://clusterfuzz.com/testcase?key=6372972121292800 Fuzzer: libFuzzer_net_host_resolver_impl_fuzzer Job Type: libfuzzer_chrome_asan Platform Id: linux Crash Type: Null-dereference READ Crash Address: 0x000000000008 Crash State: net::DnsTransactionImpl::DoCallback base::debug::TaskAnnotator::RunTask base::MessageLoop::RunTask Sanitizer: address (ASAN) Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=503770:503839 Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=512844:512867 Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6372972121292800 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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Nov 7 2017
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Nov 7 2017
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Comment 1 by ClusterFuzz
, Oct 21 2017Labels: Test-Predator-AutoComponents