From 9722023c4875a326ee9e4e9e0db71d463d990368 Mon Sep 17 00:00:00 2001 From: Baptiste Daroussin Date: Thu, 23 May 2024 12:09:11 +0200 Subject: [PATCH] MAC/do: allow to call setuid if real user id is 0 This fixed sshd not able to call restore_uid when MAC/do policy is loaded (cherry picked from commit 61b07f8aa52844b21637ac264ea134c1aef48cb7) --- sys/security/mac_do/mac_do.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sys/security/mac_do/mac_do.c b/sys/security/mac_do/mac_do.c index 8685954b7db6..507e64ea0175 100644 --- a/sys/security/mac_do/mac_do.c +++ b/sys/security/mac_do/mac_do.c @@ -489,7 +489,7 @@ check_setuid(struct ucred *cred, uid_t uid) if (do_enabled == 0) return (0); - if (cred->cr_uid == uid || cred->cr_uid == 0) + if (cred->cr_uid == uid || cred->cr_uid == 0 || cred->cr_ruid == 0) return (0); if (vn_fullpath(curproc->p_textvp, &fullpath, &freebuf) != 0)