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Fix child reaping on fuzzer termination

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This commit contains the following changes:
    - Call `waitpid()` on the child and the fork server when terminating the
      fuzzer; thus, we do not end up with zombies.
    - Rename `fsrv.kill_signal` to `fsrv.child_kill_signal`, since the
      documentation states that the signal is used to terminate the *child*.
    - Use SIGTERM instead of fsrv.(child)_kill_signal, thus the fork server
      can always reap the child.
This commit is contained in:
Nils Bars
2022-10-20 13:14:29 +02:00
parent 5ccf389414
commit f84ea69660
9 changed files with 26 additions and 28 deletions
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3
src/afl-fuzz.c
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@ -1358,7 +1358,7 @@ int main(int argc, char **argv_orig, char **envp) {
#endif
afl->fsrv.kill_signal =
afl->fsrv.child_kill_signal =
parse_afl_kill_signal_env(afl->afl_env.afl_kill_signal, SIGKILL);
setup_signal_handlers();
@ -2683,4 +2683,3 @@ stop_fuzzing:
}
#endif /* !AFL_LIB */