DCHECK failure in !move_dst_regs.has(dst) in liftoff-assembler.cc |
||||||||
Issue descriptionDetailed report: https://clusterfuzz.com/testcase?key=6262536491237376 Fuzzer: libFuzzer_v8_wasm_call_fuzzer Job Type: libfuzzer_chrome_asan_debug Platform Id: linux Crash Type: DCHECK failure Crash Address: Crash State: !move_dst_regs.has(dst) in liftoff-assembler.cc MoveRegister LoadIntoRegister Sanitizer: address (ASAN) Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan_debug&range=521282:521293 Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6262536491237376 Issue filed automatically. See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reference.md for more information.
,
Dec 9 2017
,
Dec 9 2017
This is a serious security regression. If you are not able to fix this quickly, please revert the change that introduced it. If this doesn't affect a release branch, or has not been properly classified for severity, please update the Security_Impact or Security_Severity labels, and remove the ReleaseBlock label. To disable this altogether, apply ReleaseBlock-NA. For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
,
Dec 9 2017
,
Dec 10 2017
,
Dec 11 2017
Liftoff is disabled by default, lowering priority.
,
Dec 11 2017
The following revision refers to this bug: https://chromium.googlesource.com/v8/v8.git/+/9678c5320dede7641f525e9849da619956433124 commit 9678c5320dede7641f525e9849da619956433124 Author: Clemens Hammacher <clemensh@chromium.org> Date: Mon Dec 11 13:47:02 2017 [Liftoff] Fix redundant register moves Moving a register to itself is not only unnecessary overhead, it also breaks invariants in the StackTransferRecipe. R=ahaas@chromium.org Bug: v8:6600, chromium:793551 Change-Id: I659fd66b4f2d4564c437ed9fb048322af4299d97 Reviewed-on: https://chromium-review.googlesource.com/819231 Reviewed-by: Clemens Hammacher <clemensh@chromium.org> Reviewed-by: Andreas Haas <ahaas@chromium.org> Commit-Queue: Clemens Hammacher <clemensh@chromium.org> Cr-Commit-Position: refs/heads/master@{#49992} [modify] https://crrev.com/9678c5320dede7641f525e9849da619956433124/src/wasm/baseline/liftoff-assembler.cc [add] https://crrev.com/9678c5320dede7641f525e9849da619956433124/test/mjsunit/regress/wasm/regress-793551.js
,
Dec 11 2017
,
Dec 12 2017
ClusterFuzz testcase 6262536491237376 is verified as fixed, so closing issue as verified. If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue. |
||||||||
►
Sign in to add a comment |
||||||||
Comment 1 by elawrence@chromium.org
, Dec 9 2017Owner: clemensh@chromium.org
Status: Assigned (was: Untriaged)