New issue
Advanced search Search tips
Note: Color blocks (like or ) mean that a user may not be available. Tooltip shows the reason.

Issue 644681 link

Starred by 1 user

Issue metadata

Status: Verified
Owner:
Closed: Sep 2016
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



Sign in to add a comment

Crash in v8::internal::wasm::WasmFullDecoder::CreateOrMergeIntoPhi

Project Member Reported by ClusterFuzz, Sep 7 2016

Issue description

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6190628683907072

Fuzzer: afl_v8_wasm_code_fuzzer
Job Type: afl_chrome_asan
Platform Id: linux

Crash Type: UNKNOWN READ
Crash Address: 0x000000000060
Crash State:
  v8::internal::wasm::WasmFullDecoder::CreateOrMergeIntoPhi
  v8::internal::wasm::WasmFullDecoder::BreakTo
  v8::internal::wasm::WasmFullDecoder::DecodeFunctionBody
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=afl_chrome_asan&range=415614:415641

Minimized Testcase (0.11 Kb): https://cluster-fuzz.appspot.com/download/AMIfv95WdbeJ7eHp1_1XyAipvH5gqEMfPC_cgSmVXh_LVu4mi0MnEZcVYcZyoqt6TQmby0u13uuN8tE-MfPykzoUPWcXDjC9v3fCOz20NXfIXTN-rsYinUgPsA2tRzmzytER1AT07pYc8qXaLtRhIIp2rzMSGYRznQ?testcase_id=6190628683907072

Issue manually filed by: mmoroz

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reproducing.md for more information.
 
Cc: titzer@chromium.org kcc@chromium.org mmoroz@chromium.org aizatsky@chromium.org
Owner: ahaas@chromium.org
ahaas@, looks like your fuzzer pretending to win the Fuzzathon :) lots of crashes!
Components: Blink>JavaScript>WebAssembly
Status: Assigned (was: Untriaged)
Project Member

Comment 4 by ClusterFuzz, Sep 9 2016

ClusterFuzz has detected this issue as fixed in range 417297:417419.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6190628683907072

Fuzzer: afl_v8_wasm_code_fuzzer
Job Type: afl_chrome_asan
Platform Id: linux

Crash Type: UNKNOWN READ
Crash Address: 0x000000000060
Crash State:
  v8::internal::wasm::WasmFullDecoder::CreateOrMergeIntoPhi
  v8::internal::wasm::WasmFullDecoder::BreakTo
  v8::internal::wasm::WasmFullDecoder::DecodeFunctionBody
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=afl_chrome_asan&range=415614:415641
Fixed: https://cluster-fuzz.appspot.com/revisions?job=afl_chrome_asan&range=417297:417419

Minimized Testcase (0.11 Kb): https://cluster-fuzz.appspot.com/download/AMIfv95WdbeJ7eHp1_1XyAipvH5gqEMfPC_cgSmVXh_LVu4mi0MnEZcVYcZyoqt6TQmby0u13uuN8tE-MfPykzoUPWcXDjC9v3fCOz20NXfIXTN-rsYinUgPsA2tRzmzytER1AT07pYc8qXaLtRhIIp2rzMSGYRznQ?testcase_id=6190628683907072

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 5 by ClusterFuzz, Sep 9 2016

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

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

Comment 6 by sheriffbot@chromium.org, Nov 22 2016

Labels: -Restrict-View-EditIssue
Removing EditIssue view restrictions from ClusterFuzz filed bugs. If you believe that this issue should still be restricted, please reapply the label.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

Sign in to add a comment