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Issue metadata

Status: Verified
Owner: ----
Closed: Dec 2017
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug-Security



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Heap-buffer-overflow in ConstantUnion::operator-

Project Member Reported by ClusterFuzz, Dec 20 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6081958349373440

Fuzzer: libFuzzer_swiftshader_vertex_routine_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: Heap-buffer-overflow READ 1
Crash Address: 0x60400000ca3c
Crash State:
  ConstantUnion::operator-
  TIntermediate::addBinaryMath
  TParseContext::addBinaryMath
  
Sanitizer: address (ASAN)

Recommended Security Severity: Medium

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=521502:521564

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6081958349373440

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Dec 20 2017

Components: Internals>GPU>SwiftShader
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, Dec 20 2017

ClusterFuzz has detected this issue as fixed in range 525196:525217.

Detailed report: https://clusterfuzz.com/testcase?key=6081958349373440

Fuzzer: libFuzzer_swiftshader_vertex_routine_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: Heap-buffer-overflow READ 1
Crash Address: 0x60400000ca3c
Crash State:
  ConstantUnion::operator-
  TIntermediate::addBinaryMath
  TParseContext::addBinaryMath
  
Sanitizer: address (ASAN)

Recommended Security Severity: Medium

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=521502:521564
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=525196:525217

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6081958349373440

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reference.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 ClusterFuzz, Dec 20 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Untriaged)
ClusterFuzz testcase 6081958349373440 is verified as fixed, so closing issue as verified.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.
Project Member

Comment 4 by sheriffbot@chromium.org, Dec 21 2017

Labels: -Restrict-View-SecurityTeam Restrict-View-SecurityNotify
Project Member

Comment 5 by sheriffbot@chromium.org, Mar 29 2018

Labels: -Restrict-View-SecurityNotify 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
Project Member

Comment 6 by sheriffbot@chromium.org, Jul 28

Labels: Pri-1

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