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proc: read the pid prior to unlocking in report_alive_proc1

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In principle another thread could have reaped the process by that time.
This commit is contained in:
Mateusz Guzik 2022-08-25 17:26:49 +00:00
parent 5d0aebf4fa
commit 49afea1059
1 changed files with 1 additions and 1 deletions
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2
sys/kern/kern_exit.c
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@ -1269,8 +1269,8 @@ report_alive_proc(struct thread *td, struct proc *p, siginfo_t *siginfo,
}
if (status != NULL)
*status = cont ? SIGCONT : W_STOPCODE(p->p_xsig);
PROC_UNLOCK(p);
td->td_retval[0] = p->p_pid;
PROC_UNLOCK(p);
}
int