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sysctl_kern_proc_args: do not take the fast path if p_args is NULL

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In this case it falls back to reading ps_strings
This commit is contained in:
Antoine Brodin 2018-01-01 21:25:01 +00:00
parent 84874cc151
commit 1b25176cbc
1 changed files with 3 additions and 5 deletions
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8
sys/kern/kern_proc.c
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@ -1920,11 +1920,9 @@ sysctl_kern_proc_args(SYSCTL_HANDLER_ARGS)
* is nobody to modify pargs, thus we can just read. * is nobody to modify pargs, thus we can just read.
*/ */
p = curproc; p = curproc;
if (pid == p->p_pid && p->p_numthreads == 1 && req->newptr == NULL) { if (pid == p->p_pid && p->p_numthreads == 1 && req->newptr == NULL &&
if ((pa = p->p_args) != NULL) (pa = p->p_args) != NULL)
error = SYSCTL_OUT(req, pa->ar_args, pa->ar_length); return (SYSCTL_OUT(req, pa->ar_args, pa->ar_length));
return (error);
}
flags = PGET_CANSEE; flags = PGET_CANSEE;
if (req->newptr != NULL) if (req->newptr != NULL)