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Issue metadata

Status: Duplicate
Merged: issue 675195
Owner: ----
Closed: Dec 2016
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: ----
Type: Bug-Security



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Use-of-uninitialized-value in __msan::MsanAllocate

Project Member Reported by ClusterFuzz, Dec 16 2016

Issue description

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=4515361421787136

Fuzzer: libfuzzer_gn_parser_fuzzer
Job Type: libfuzzer_chrome_msan
Platform Id: linux

Crash Type: Use-of-uninitialized-value
Crash Address: 
Crash State:
  __msan::MsanAllocate
  Parser::BlockComment
  Parser::ParseStatement
  
Recommended Security Severity: Medium

Regressed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_msan&range=438777:438804

Minimized Testcase (0.00 Kb):
Download: https://cluster-fuzz.appspot.com/download/AMIfv95aLt_jRpVU8Q4TjSVNV1tgOZxBWSOO-zqCf4aOiXzh-I8LhAyULm_4uRC_zzg5WtATKPnKeKww5Q_cMiV9aO9AZe91vvHgdSxrSoA3JxoieYdz6OzDm-o-qgpyNCUUPeb2I8Pwg1qdWmeuO40x_5LqzGxOBA?testcase_id=4515361421787136
#




Issue filed automatically.

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

Comment 1 by kcc@chromium.org, Dec 16 2016

Mergedinto: 675195
Status: Duplicate (was: Untriaged)
dup of a false positive
Project Member

Comment 2 by ClusterFuzz, Dec 18 2016

ClusterFuzz has detected this issue as fixed in range 439337:439343.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=4515361421787136

Fuzzer: libfuzzer_gn_parser_fuzzer
Job Type: libfuzzer_chrome_msan
Platform Id: linux

Crash Type: Use-of-uninitialized-value
Crash Address: 
Crash State:
  __msan::MsanAllocate
  Parser::BlockComment
  Parser::ParseStatement
  
Recommended Security Severity: Medium

Regressed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_msan&range=438777:438804
Fixed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_msan&range=439337:439343

Minimized Testcase (0.00 Kb):
Download: https://cluster-fuzz.appspot.com/download/AMIfv95aLt_jRpVU8Q4TjSVNV1tgOZxBWSOO-zqCf4aOiXzh-I8LhAyULm_4uRC_zzg5WtATKPnKeKww5Q_cMiV9aO9AZe91vvHgdSxrSoA3JxoieYdz6OzDm-o-qgpyNCUUPeb2I8Pwg1qdWmeuO40x_5LqzGxOBA?testcase_id=4515361421787136
#




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

If you suspect that the result above is incorrect, try re-doing that job on the test case report page.
Project Member

Comment 3 by sheriffbot@chromium.org, Mar 27 2017

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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