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Issue 636451 link

Starred by 1 user
Status: WontFix
Owner: ----
Closed: Aug 2016
EstimatedDays: ----
NextAction: ----
OS: Windows
Pri: ----
Type: Bug-Security



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Heap-use-after-free in blink::Text::mergeNextSiblingNodesIfPossible

Project Member Reported by ClusterFuzz, Aug 10 2016 
Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5529921575452672

Fuzzer: bj_broddelwerk
Job Type: windows_asan_chrome_no_sandbox
Platform Id: windows

Crash Type: Heap-use-after-free READ 4
Crash Address: 0x043ae004
Crash State:
  blink::Text::mergeNextSiblingNodesIfPossible
  blink::Node::normalize
  blink::NodeV8Internal::normalizeMethodCallback
  
Recommended Security Severity: High

Regressed: https://cluster-fuzz.appspot.com/revisions?job=windows_asan_chrome_no_sandbox&range=410288:410785

Minimized Testcase (1.54 Kb): https://cluster-fuzz.appspot.com/download/AMIfv97nk2fdAUwRq79v2lezwDhir87Hk8ia0LsElGP12UPcyFDdx61GLCk3mWEe-FNxAIQ31IeVTdOiyIv59CKRaaYvaQo3Ulq5qTMjUDg5Xop-9cMngh4Mx_rg67h5QwXfAc_pBFLfqsFR2OEfAGAH1F1WYtbMcQ?testcase_id=5529921575452672

Issue manually filed by: ochang

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

Comment 1 by och...@chromium.org, Aug 10 2016

Labels: Security_Impact-None
None of these seem to be reproducible in any other configuration, so these may be bogus. Security_Impact-None until we figure this out.

Comment 2 by infe...@chromium.org, Aug 24 2016

Status: WontFix (was: Untriaged)
These were all false positives, fixed with latest win asan builds.
Project Member

Comment 3 by sheriffbot@chromium.org, Nov 30 2016

Labels: -Restrict-View-SecurityTeam allpublic
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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