New issue
Advanced search Search tips

Issue 922905 link

Starred by 1 user

Issue metadata

Status: Assigned
Owner:
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux , Chrome
Pri: 1
Type: Bug



Sign in to add a comment

Null-dereference READ in content::AppCacheHost::host_id

Project Member Reported by ClusterFuzz, Jan 17 (5 days ago)

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5679679381700608

Fuzzer: libFuzzer_appcache_fuzzer
Fuzz target binary: appcache_fuzzer
Job Type: libfuzzer_chrome_msan
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000018
Crash State:
  content::AppCacheHost::host_id
  content::AppCacheUpdateJob::NotifySingleHost
  content::AppCacheUpdateJob::StartUpdate
  
Sanitizer: memory (MSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_msan&range=623461:623463

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5679679381700608

Issue filed automatically.

See https://www.chromium.org/developers/testing/memorysanitizer#TOC-Reproducing-ClusterFuzz-Bugs for instructions to reproduce this bug locally.
 
Project Member

Comment 1 by ClusterFuzz, Jan 17 (5 days ago)

Components: Blink>Storage>AppCache
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, Jan 17 (5 days ago)

Cc: mmoroz@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.
Project Member

Comment 3 by ClusterFuzz, Jan 17 (5 days ago)

Labels: Test-Predator-Auto-Owner
Owner: mek@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/2761bb080c9f9c2a84614616e851ed2dc1c669d9 ([AppCache] ReportBadMessage rather than DCHECK for preconditions on mojo API.).

If this is incorrect, please let us know why and apply the Test-Predator-Wrong-CLs label. If you aren't the correct owner for this issue, please unassign yourself as soon as possible so it can be re-triaged.
Project Member

Comment 4 by ClusterFuzz, Jan 19 (3 days ago)

Labels: OS-Chrome

Sign in to add a comment