From: Ralph Boehme <slow@samba.org>
Date: Mon, 14 Jan 2019 12:51:23 +0000 (+0100)
Subject: s3:smbd: perform impersonation in dos_mode_at_vfs_get_dosmode_done()
X-Git-Tag: talloc-2.1.15~20
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=75e2e242de83fc880b91dacdc7622e646b05b1a0;p=thirdparty%2Fsamba.git

s3:smbd: perform impersonation in dos_mode_at_vfs_get_dosmode_done()

This is needed as the callback might be called in an arbitrary
impersonation state.

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
---

diff --git a/source3/smbd/dosmode.c b/source3/smbd/dosmode.c
index 177fe68c894..a4625718a56 100644
--- a/source3/smbd/dosmode.c
+++ b/source3/smbd/dosmode.c
@@ -811,6 +811,13 @@ static void dos_mode_at_vfs_get_dosmode_done(struct tevent_req *subreq)
 	struct smb_filename *smb_path = NULL;
 	struct vfs_aio_state aio_state;
 	NTSTATUS status;
+	bool ok;
+
+	/*
+	 * Make sure we run as the user again
+	 */
+	ok = change_to_user_by_fsp(state->dir_fsp);
+	SMB_ASSERT(ok);
 
 	status = SMB_VFS_GET_DOS_ATTRIBUTES_RECV(subreq,
 						 &aio_state,