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From: Dan Carpenter <dan.carpenter@oracle.com>
To: Namjae Jeon <namjae.jeon@samsung.com>
Cc: Hyunchul Lee <hyc.lee@gmail.com>,
	Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
	Steve French <stfrench@microsoft.com>,
	Ronnie Sahlberg <lsahlber@redhat.com>,
	linux-kernel@vger.kernel.org, linux-cifs@vger.kernel.org,
	kernel-janitors@vger.kernel.org
Subject: [PATCH] cifsd: fix a precedence bug in parse_dacl()
Date: Thu, 18 Mar 2021 16:10:21 +0300	[thread overview]
Message-ID: <YFNRPcVUXZ3EiEXN@mwanda> (raw)

The shift has higher precedence than mask so this doesn't work as
intended.

Fixes: ef24dca82789 ("cifsd: add support for ACLs")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
 fs/cifsd/smbacl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/cifsd/smbacl.c b/fs/cifsd/smbacl.c
index 8d8360ca4751..294c5a8fe9af 100644
--- a/fs/cifsd/smbacl.c
+++ b/fs/cifsd/smbacl.c
@@ -520,7 +520,7 @@ static void parse_dacl(struct smb_acl *pdacl, char *end_of_acl,
 			fattr->cf_gid;
 		acl_state.groups->aces[acl_state.groups->n++].perms.allow =
 			(mode & 0070) >> 3;
-		default_acl_state.group.allow = mode & 0070 >> 3;
+		default_acl_state.group.allow = (mode & 0070) >> 3;
 		default_acl_state.groups->aces[default_acl_state.groups->n].gid =
 			fattr->cf_gid;
 		default_acl_state.groups->aces[default_acl_state.groups->n++].perms.allow =
-- 
2.30.2


             reply	other threads:[~2021-03-18 13:11 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-18 13:10 Dan Carpenter [this message]
2021-03-19  4:44 ` [PATCH] cifsd: fix a precedence bug in parse_dacl() Sergey Senozhatsky

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