v8/test/mjsunit/regress/regress-992389.js
Patrick Thier 52c7565de8 [regexp] Fix dirty read in regexp interpreter.
When GC triggered while an exception is pending, a read to
memory that was no longer valid could happen while backtracking in the
regexp interpreter (introduced with commit fb0df2c).
This CL prevents this dirty read, that could have been a security issue.

Bug: chromium:992389, v8:9575
Change-Id: Ie1acd6faa16665e211666c6a8dcf2a9d74e0c886
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1751342
Commit-Queue: Patrick Thier <pthier@google.com>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63195}
2019-08-13 16:08:18 +00:00

15 lines
345 B
JavaScript

// Copyright 2019 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --jitless --gc-interval=12 --stack-size=50
__f_0();
function __f_0() {
try {
__f_0();
} catch(e) {
"b".replace(/(b)/g, function() { return "c"; });
}
}