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Issue 697610 link

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Issue metadata

Status: WontFix
Owner: ----
Closed: Mar 2017
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



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Crash in blink::RootInlineBox::closestLeafChildForLogicalLeftPosition

Project Member Reported by ClusterFuzz, Mar 1 2017

Issue description

Cc: kojii@chromium.org
Components: Blink>Layout
Labels: Test-Layout Test-Predator-Wrong M-57
Owner: robhogan@chromium.org
Status: Assigned (was: Untriaged)
Through code search on file RootInlineBox.cpp, suspected CL is
https://chromium.googlesource.com/chromium/src/+/eab82c830edc973964782a440d878ed077e6a5be%5E%21/#F55
Cc: mummare...@chromium.org robhogan@chromium.org
Owner: yosin@chromium.org
Not my change, I can recreate after reverting it.

yosin@ - you have a few CLs in regression range. Can you take a look? I've kicked off another blame task on clusterfuzz just in case.
Cc: yosin@chromium.org
 Issue 697588  has been merged into this issue.

Comment 4 by yosin@chromium.org, Mar 6 2017

Status: Available (was: Assigned)

Comment 5 by yosin@chromium.org, Mar 6 2017

Owner: ----

Comment 6 by e...@chromium.org, Mar 8 2017

Status: WontFix (was: Available)
Not a security issue (null-deref) nor seen in the wild.
We're reworking selections for LayoutNG, it is probably not worth fixing this until then.
Project Member

Comment 7 by ClusterFuzz, Mar 9 2017

ClusterFuzz has detected this issue as fixed in range 455091:455394.

Detailed report: https://clusterfuzz.com/testcase?key=5431974748749824

Fuzzer: inferno_layout_test_unmodified
Job Type: linux_asan_chrome_mp
Platform Id: linux

Crash Type: UNKNOWN READ
Crash Address: 0x00000000000d
Crash State:
  blink::RootInlineBox::closestLeafChildForLogicalLeftPosition
  blink::nextLinePosition
  blink::SelectionModifier::modifyMovingForward
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_asan_chrome_mp&range=433020:433172
Fixed: https://clusterfuzz.com/revisions?job=linux_asan_chrome_mp&range=455091:455394

Reproducer Testcase: https://clusterfuzz.com/download/AMIfv94e3BFg2RY4nl8j39pXgU9wYvOLy4HR7ORUYcMoKYrZSmSYSvkCXDLnGmYvwSRJ2_q2gex8v6dvWyHRfEM6MMGVo0FHU9L1rWvr09VPmSdF4pICnG-Y4DG3Q_x5cTgjmhiqVdyvOydohLZrd2PB2E_F-TJc63N2VKEaZv0V1IG3jo6flGCOfOhx31sPkGvjmeRmPzBUTxLcNMhFcu4oHDOUchf8mwRXxQL9IAMoQ1fMjfzXbxkMJCe3z929n7Lnbm0-GGDMhoGA8ctP3RAzPo2xT0j9JRd1eekQOk7jrUcc75iso-SEcPvOwBxZmWWjglVLyW-JKMcgwUdf6PR7CEg3SjNZ92S4cd775xKU0fpT-0ZekH0?testcase_id=5431974748749824


See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs 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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