D40642.diff
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	diff --git a/sys/kern/kern_prot.c b/sys/kern/kern_prot.c
	--- a/sys/kern/kern_prot.c
	+++ b/sys/kern/kern_prot.c
	@@ -1408,21 +1408,18 @@
	static int
	cr_canseeothergids(struct ucred u1, struct ucred u2)
	{
	- int i, match;
	-
	if (!see_other_gids) {
	- match = 0;
	- for (i = 0; i < u1->cr_ngroups; i++) {
	- if (groupmember(u1->cr_groups[i], u2))
	- match = 1;
	- if (match)
	- break;
	- }
	- if (!match) {
	- if (priv_check_cred(u1, PRIV_SEEOTHERGIDS) != 0)
	- return (ESRCH);
	- }
	+ if (realgroupmember(u1->cr_rgid, u2))
	+ return (0);
	+
	+ for (int i = 1; i < u1->cr_ngroups; i++)
	+ if (realgroupmember(u1->cr_groups[i], u2))
	+ return (0);
	+
	+ if (priv_check_cred(u1, PRIV_SEEOTHERGIDS) != 0)
	+ return (ESRCH);
	}
	+
	return (0);
	}