[experimental] Add crash to Fuzzilli fuzzing to investigate ClusterFuzz [chromium/src : main]
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Tigran Bantikyan (Gerrit)
May 27, 2026, 5:08:14 PM (24 hours ago) May 27
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Tigran Bantikyan (Gerrit)
May 27, 2026, 5:08:32 PM (24 hours ago) May 27
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Tigran Bantikyan added 1 comment![]( "Open in Gerrit")
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Giovanni Ortuno Urquidi (Gerrit)
May 27, 2026, 5:10:11 PM (24 hours ago) May 27
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| Code-Review | +1 |
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Tigran Bantikyan (Gerrit)
May 27, 2026, 5:12:39 PM (24 hours ago) May 27
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Tigran Bantikyan . resolved
Hi Jocelyn, PTAL at this CL.
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Jocelyn Tran (Gerrit)
10:25 AM (7 hours ago) 10:25 AM
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Jocelyn Tran voted and added 1 comment![]( "Open in Gerrit")
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| Code-Review | +1 |
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File chrome/test/fuzzing/js_in_process_fuzzer.cc
Line 163, Patchset 1 (Latest):
raise(SIGTERM);Jocelyn Tran . unresolved
nit: Why not `CHECK(false)` or `base::ImmediateCrash()` here?
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Tigran Bantikyan (Gerrit)
10:41 AM (6 hours ago) 10:41 AM
to Jocelyn Tran, Chromium LUCI CQ, Giovanni Ortuno Urquidi, chromium...@chromium.org, ortuno...@chromium.org, titoua...@chromium.org
Tigran Bantikyan added 1 comment![]( "Open in Gerrit")
File chrome/test/fuzzing/js_in_process_fuzzer.cc
Line 163, Patchset 1 (Latest):
raise(SIGTERM);Jocelyn Tran . resolved
nit: Why not `CHECK(false)` or `base::ImmediateCrash()` here?
Tigran Bantikyan
Fuzzilli is specifically [looking for SIGTERM or SIGSEGV](https://crsrc.org/c/chrome/test/fuzzing/js_in_process_fuzzer.cc;l=107-113?ss=chromium&q=chrome%2Ftest%2Ffuzzing%2Fjs_in_process_fuzzer.cc). I believe those raise SIGABRT on Linux, but the implementation is platform dependent, so I found it simpler to raise SIGTERM explicitly.
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Tigran Bantikyan (Gerrit)
3:35 PM (1 hour ago) 3:35 PM
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Tigran Bantikyan voted Commit-Queue+2![]( "Open in Gerrit")
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Chromium LUCI CQ (Gerrit)
3:39 PM (1 hour ago) 3:39 PM
to Tigran Bantikyan, Jocelyn Tran, Giovanni Ortuno Urquidi, chromium...@chromium.org, ortuno...@chromium.org, titoua...@chromium.org
Chromium LUCI CQ submitted the change![]( "Open in Gerrit")
Change information
Commit message:
[experimental] Add crash to Fuzzilli fuzzing to investigate ClusterFuzz
This CL introduces a crash for every JavaScript program that outputs a
"EXPERIMENTAL_lock_manager_crash" and updates the
MojoLockManagerProfile.swift profile to emit that string. This change is
experimental in nature, as we seek to understand how ClusterFuzz will
handle `js_in_process_fuzzer` fuzz target crashes.
Bug: 517206974
Change-Id: Ie1212b1bd5a559dc3e5361818ec0eb86d53cf515
Commit-Queue: Tigran Bantikyan <bant...@google.com>
Reviewed-by: Giovanni Ortuno Urquidi <ort...@chromium.org>
Reviewed-by: Jocelyn Tran <jocel...@google.com>
Cr-Commit-Position: refs/heads/main@{#1637881}
Files:
- M chrome/test/fuzzing/js_in_process_fuzzer.cc
- M testing/libfuzzer/research/fuzzilli_mojom_fuzzing/MojoLockManagerProfile.swift
Change size: XS
Delta: 2 files changed, 8 insertions(+), 0 deletions(-)
Branch: refs/heads/main
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Code-Review: +1 by Giovanni Ortuno Urquidi, +1 by Jocelyn Tran
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