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Don't run clang to link when fuzzing. (#6835)

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The clang driver is too easy to crash with fuzzer-generated command
lines, and it's not interesting to find those bugs.
This commit is contained in:
Richard Smith
2026-03-05 20:01:44 +00:00
committed by GitHub
parent bf6f21b8e9
commit 6a650941d2
1 changed files with 5 additions and 0 deletions
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toolchain/driver/link_subcommand.cpp
+5
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@@ -117,6 +117,11 @@ auto LinkSubcommand::Run(DriverEnv& driver_env) -> DriverResult {
ClangRunner runner(driver_env.installation, driver_env.fs,
driver_env.vlog_stream);
// Don't run Clang when fuzzing, it is known to not be reliable under fuzzing
// due to many unfixed issues.
if (TestAndDiagnoseIfFuzzingExternalLibraries(driver_env, "clang")) {
return {.success = false};
}
ErrorOr<bool> run_result =
driver_env.prebuilt_runtimes
? runner.RunWithPrebuiltRuntimes(clang_args,