New issue
Advanced search Search tips

Issue 903530 link

Starred by 1 user

Issue metadata

Status: Duplicate
Merged: issue 873225
Owner:
Closed: Nov 14
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux , Mac
Pri: 1
Type: Bug



Sign in to add a comment

Null-dereference READ in spvtools::opt::Instruction::opcode

Project Member Reported by ClusterFuzz, Nov 8

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6309941826289664

Fuzzer: afl_spvtools_opt_size_fuzzer
Job Type: afl_chrome_asan
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000028
Crash State:
  spvtools::opt::Instruction::opcode
  spvtools::opt::MemPass::GetPtr
  spvtools::opt::AggressiveDCEPass::AggressiveDCE
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=afl_chrome_asan&range=589990:590303

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6309941826289664

Issue filed automatically.

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reference.md for more information.
 
Cc: dsinclair@chromium.org
Components: Internals>GPU>Internals
Owner: stevenperron@google.com
Status: Assigned (was: Untriaged)
Project Member

Comment 2 by ClusterFuzz, Nov 8

Cc: vmi...@chromium.org piman@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, Nov 10

Labels: OS-Mac
Mergedinto: 873225
Status: Duplicate (was: Assigned)
Project Member

Comment 5 by ClusterFuzz, Nov 17

ClusterFuzz has detected this issue as fixed in range 608874:608908.

Detailed report: https://clusterfuzz.com/testcase?key=6309941826289664

Fuzzer: afl_spvtools_opt_size_fuzzer
Job Type: afl_chrome_asan
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000028
Crash State:
  spvtools::opt::Instruction::opcode
  spvtools::opt::MemPass::GetPtr
  spvtools::opt::AggressiveDCEPass::AggressiveDCE
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=afl_chrome_asan&range=589990:590303
Fixed: https://clusterfuzz.com/revisions?job=afl_chrome_asan&range=608874:608908

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6309941826289664

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.

Sign in to add a comment