Null-dereference READ in blink::StyleEngine::NodeWillBeRemoved |
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Issue descriptionDetailed report: https://clusterfuzz.com/testcase?key=5114990200881152 Fuzzer: marcin_towalski_cm Job Type: linux_msan_chrome Platform Id: linux Crash Type: Null-dereference READ Crash Address: 0x00000000000f Crash State: blink::StyleEngine::NodeWillBeRemoved blink::ContainerNode::WillRemoveChild blink::ContainerNode::RemoveChild Sanitizer: memory (MSAN) Regressed: https://clusterfuzz.com/revisions?job=linux_msan_chrome&range=526968:526970 Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5114990200881152 Issue filed automatically. See https://github.com/google/clusterfuzz-tools for more information.
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Jan 4 2018
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Jan 4 2018
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Jan 5 2018
Hmm, looks like there's a problem with maybe a hanging pointer to a LayoutObject in Node? There is a comment that "This untraced pointer to the owning Node is considered safe." https://cs.chromium.org/chromium/src/third_party/WebKit/Source/core/layout/LayoutObject.h?l=2177 This comment was added by sigbjornf in https://codereview.chromium.org/869323003 Pinging it back to you nainar, could you PTAL and see if you think my theory could be correct?
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Jan 5 2018
Assigning to futhark@ since their CL was in the suspect range
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Jan 5 2018
This is most likely the anonymous table correction I landed (and reverted) yesterday.
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Jan 5 2018
ClusterFuzz has detected this issue as fixed in range 527016:527020. Detailed report: https://clusterfuzz.com/testcase?key=5114990200881152 Fuzzer: marcin_towalski_cm Job Type: linux_msan_chrome Platform Id: linux Crash Type: Null-dereference READ Crash Address: 0x00000000000f Crash State: blink::StyleEngine::NodeWillBeRemoved blink::ContainerNode::WillRemoveChild blink::ContainerNode::RemoveChild Sanitizer: memory (MSAN) Regressed: https://clusterfuzz.com/revisions?job=linux_msan_chrome&range=526968:526970 Fixed: https://clusterfuzz.com/revisions?job=linux_msan_chrome&range=527016:527020 Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5114990200881152 See https://github.com/google/clusterfuzz-tools 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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Jan 5 2018
ClusterFuzz testcase 5114990200881152 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
, Jan 4 2018Labels: Test-Predator-Auto-Components