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Issue 707222 link

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Issue metadata

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



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Global-buffer-overflow in v8::internal::Simulator::DecodeTypeImmediate

Project Member Reported by ClusterFuzz, Mar 31 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5170849553580032

Fuzzer: decoder_langfuzz
Job Type: linux_asan_d8_v8_mipsel_dbg
Platform Id: linux

Crash Type: Global-buffer-overflow READ 4
Crash Address: 0xf6f28240
Crash State:
  v8::internal::Simulator::DecodeTypeImmediate
  v8::internal::Simulator::InstructionDecode
  v8::internal::Simulator::CallInternal
  
Sanitizer: address (ASAN)

Regressed: V8: 44294:44295

Reproducer Testcase: https://clusterfuzz.com/download/AMIfv97se0OkPHm8U_GLx4LAsKpkU3k1rHvlfbeIwfb38c6in_Y1HzK_XRMD8xS9SD0qsFVs9ems8CZe7zH8lmBrf8EAEk3Ha6o2R80ECP3NRthK3z5537R6BwYkfMjQX13US5xgBNccfxnJgDee790YAkCtZvKcUikvBX0Cqfhke8Q1EwYIU68q0Ye8sLmqj23uHslhh7lu5OW_SYp5jCVFNf59HzPaMUbrFV8Or3fglTJoNMD-p3PYi6v-J8hD2AxjRuTHeWVWtmlLhHRLLFWuPZ_hlkp_b105sqmGSGoBcsy5yNvfHN0V0o6ECv9HWbp6l0y9nGHtI66eswXCdcrE90nAjsR2C3S7uuDmneSGrDaF1qIIc6FxVmhBznBIPwMuS8OsM4c7ConbKy-Cos8S5N_KKtKRiA?testcase_id=5170849553580032


Issue manually filed by: ishell

See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.
 

Comment 1 by ta...@google.com, Mar 31 2017

This crash accounts for ~30% of all crashes occuring on ClusterFuzz. It'd be great if it get resolved quickly.

Comment 2 by ta...@google.com, Apr 1 2017

Labels: Pri-2
Owner: mstarzinger@chromium.org
Status: Assigned (was: Untriaged)
mstarzinger@, I wonder if you can take a look at this. It looks similar to 705385.
Project Member

Comment 3 by sheriffbot@chromium.org, Apr 1 2017

Labels: M-59
Project Member

Comment 4 by sheriffbot@chromium.org, Apr 1 2017

Labels: ReleaseBlock-Beta
This issue is a security regression. If you are not able to fix this quickly, please revert the change that introduced it.

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

Comment 5 by sheriffbot@chromium.org, Apr 1 2017

Labels: -Pri-2 Pri-1

Comment 6 by ta...@google.com, Apr 3 2017

This crash occurs 20% of all crash occurrences in ClusterFuzz. It would be great if it is fixed soon. Thank you!
Cc: awhalley@chromium.org
Project Member

Comment 8 by ClusterFuzz, Apr 4 2017

ClusterFuzz has detected this issue as fixed in range 44342:44343.

Detailed report: https://clusterfuzz.com/testcase?key=5170849553580032

Fuzzer: decoder_langfuzz
Job Type: linux_asan_d8_v8_mipsel_dbg
Platform Id: linux

Crash Type: Global-buffer-overflow READ 4
Crash Address: 0xf6f28240
Crash State:
  v8::internal::Simulator::DecodeTypeImmediate
  v8::internal::Simulator::InstructionDecode
  v8::internal::Simulator::CallInternal
  
Sanitizer: address (ASAN)

Regressed: V8: 44294:44295
Fixed: V8: 44342:44343

Reproducer Testcase: https://clusterfuzz.com/download/AMIfv97se0OkPHm8U_GLx4LAsKpkU3k1rHvlfbeIwfb38c6in_Y1HzK_XRMD8xS9SD0qsFVs9ems8CZe7zH8lmBrf8EAEk3Ha6o2R80ECP3NRthK3z5537R6BwYkfMjQX13US5xgBNccfxnJgDee790YAkCtZvKcUikvBX0Cqfhke8Q1EwYIU68q0Ye8sLmqj23uHslhh7lu5OW_SYp5jCVFNf59HzPaMUbrFV8Or3fglTJoNMD-p3PYi6v-J8hD2AxjRuTHeWVWtmlLhHRLLFWuPZ_hlkp_b105sqmGSGoBcsy5yNvfHN0V0o6ECv9HWbp6l0y9nGHtI66eswXCdcrE90nAjsR2C3S7uuDmneSGrDaF1qIIc6FxVmhBznBIPwMuS8OsM4c7ConbKy-Cos8S5N_KKtKRiA?testcase_id=5170849553580032


See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs 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 9 by ClusterFuzz, Apr 4 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 5170849553580032 is verified as fixed, so closing issue.

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

Comment 10 by sheriffbot@chromium.org, Apr 4 2017

Labels: -Restrict-View-SecurityTeam Restrict-View-SecurityNotify
Cc: mstarzinger@chromium.org
Owner: jgruber@chromium.org
ClusterFuzz regression ranges point to:

Breaking CL: https://chromium.googlesource.com/v8/v8/+/cec39ad1ade5b38a7b203e9cc64cca867196f33a
Fixing CL: https://chromium.googlesource.com/v8/v8/+/32d4d8e93dda9f8aa069dd5f3f88ba09462ba89d
Labels: -ReleaseBlock-Beta -reward-topanel -Security_Impact-Head Security_Impact-Stable
Project Member

Comment 13 by sheriffbot@chromium.org, Apr 28 2017

Labels: Merge-Request-59
Labels: -Merge-Request-59 Merge-Approved-59
AFAIK this is already on 59.

tools/release/mergeinfo.py 32d4d8e93dda9f8aa069dd5f3f88ba09462ba89d

Is on Canary:    3062
First V8 branch: 5.9.157 (Might not be the rolled version)
Labels: -Merge-Approved-59 Merge-Merged
Labels: -Security_Impact-Stable Security_Impact-Beta
Project Member

Comment 18 by sheriffbot@chromium.org, Jul 11 2017

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

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