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Bad-cast to blink::WebView from invalid vptr;test_runner::TestRunnerForSpecificView::Reset;test_runner::WebViewTestProxyBase::Reset |
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Issue descriptionDetailed report: https://clusterfuzz.com/testcase?key=5485571769368576 Fuzzer: inferno_layout_test_unmodified Job Type: linux_ubsan_vptr_content_shell_drt Platform Id: linux Crash Type: Bad-cast Crash Address: 0x3d14c52c0600 Crash State: Bad-cast to blink::WebView from invalid vptr test_runner::TestRunnerForSpecificView::Reset test_runner::WebViewTestProxyBase::Reset Sanitizer: undefined (UBSAN) Recommended Security Severity: High Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_content_shell_drt&range=479114:479272 Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5485571769368576 Issue filed automatically. See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.
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Jul 10 2017
This is a serious security regression. If you are not able to fix this quickly, please revert the change that introduced it. If this doesn't affect a release branch, or has not been properly classified for severity, please update the Security_Impact or Security_Severity labels, and remove the ReleaseBlock label. To disable this altogether, apply ReleaseBlock-NA. For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
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Jul 10 2017
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Jul 10 2017
Issue started to surface on 06/13/2017. lukasza@chromium.org, could you help take a look?
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Jul 10 2017
This seems very similar to issue 739147 . FWIW, I tried to repro this and (also similarily) I couldn't. :-( $ .../clusterfuzz-tools/releases/clusterfuzz reproduce 5485571769368576 -i 20 ... WARNING: the testcase is marked as unreproducible. Therefore, it might not be reproduced. UnreproducibleError: The crash cannot be reproduced after trying 20 times. Here are things you can try: - Run outside XVFB (e.g. you will be able to see the launched program on screen.) with `--disable-xvfb`, which is especially useful for Chrome. - Run with the downloaded build by adding `--build download`. - Run `build/install-build-deps.sh` to ensure all dependencies are installed. - Run with more number of trials by adding `-i 10`, which is especially good for gesture-related testcases. - Use gdb to debug by adding `--enable-debug`.
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Oct 29 2017
This bug has been closed for more than 14 weeks. Removing security view restrictions. For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot |
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Comment 1 by sheriffbot@chromium.org
, Jul 10 2017