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Issue 861609 link

Starred by 1 user
Status: Duplicate
Merged: issue 734334
Owner:
yhirano@chromium.org
Closed: Oct 31
Cc:
█ aizatsky@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



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Null-dereference READ in content::WebURLLoaderImpl::LoadAsynchronously

Project Member Reported by ClusterFuzz, Jul 9 
Detailed report: https://clusterfuzz.com/testcase?key=4796414581014528

Fuzzer: libFuzzer_renderer_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  content::WebURLLoaderImpl::LoadAsynchronously
  blink::ResourceLoader::StartWith
  blink::ResourceLoadScheduler::Run
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=549412:549415

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4796414581014528

Issue filed automatically.

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reference.md for more information.
Project Member

Comment 1 by ClusterFuzz, Jul 9

Components: Blink>Loader Internals>Core
Labels: Test-Predator-Auto-Components
Automatically applying components based on crash stacktrace and information from OWNERS files.

If this is incorrect, please apply the Test-Predator-Wrong-Components label.
Project Member

Comment 2 by ClusterFuzz, Jul 9

Cc: aizatsky@chromium.org
Labels: ClusterFuzz-Auto-CC
Automatically adding ccs based on OWNERS file / target commit history.

If this is incorrect, please add ClusterFuzz-Wrong label.

Comment 3 by ksakamoto@chromium.org, Jul 12

Owner: yhirano@chromium.org
Status: Assigned (was: Untriaged)
|resource_dispatcher_| is nullptr in WebURLLoaderImpl::Context::Start().
Looks like a tester issue, but I'm not sure how to fix.

Tentatively assigning yhirano@ (directory OWNER of /content/renderer/loader/) for further triage.

Comment 4 by yhirano@chromium.org, Oct 31

Mergedinto: 734334
Status: Duplicate (was: Assigned)
Project Member

Comment 5 by ClusterFuzz, Dec 1

Labels: -Reproducible Unreproducible
ClusterFuzz testcase 4796414581014528 appears to be flaky, updating reproducibility label.
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