D12972.id34852.diff
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	Index: lib/libc/gen/setmode.c
	===================================================================
	--- lib/libc/gen/setmode.c
	+++ lib/libc/gen/setmode.c
	@@ -356,7 +356,7 @@
	* security.bsd.unprivileged_proc_debug is set to 0.
	*/
	len = sizeof(smask);
	- if (sysctl((int[4]){ CTL_KERN, KERN_PROC, KERN_PROC_UMASK, getpid() },
	+ if (sysctl((int[4]){ CTL_KERN, KERN_PROC, KERN_PROC_UMASK, 0 },
	4, &smask, &len, NULL, 0) == 0)
	return (smask);

	Index: sys/kern/kern_proc.c
	===================================================================
	--- sys/kern/kern_proc.c
	+++ sys/kern/kern_proc.c
	@@ -2770,11 +2770,19 @@
	struct proc *p;
	int error;
	u_short fd_cmask;
	+ pid_t pid;

	if (namelen != 1)
	return (EINVAL);

	- error = pget((pid_t)name[0], PGET_WANTREAD, &p);
	+ pid = (pid_t)name[0];
	+ p = curproc;
	+ if (pid == p->p_pid \|\| pid == 0) {
	+ fd_cmask = p->p_fd->fd_cmask;
	+ goto out;
	+ }
	+
	+ error = pget(pid, PGET_WANTREAD, &p);
	if (error != 0)
	return (error);

	@@ -2782,6 +2790,7 @@
	fd_cmask = p->p_fd->fd_cmask;
	FILEDESC_SUNLOCK(p->p_fd);
	PRELE(p);
	+out:
	error = SYSCTL_OUT(req, &fd_cmask, sizeof(fd_cmask));
	return (error);
	}