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List: linux-cifs
Subject: [PATCH v12 42/49] xfs: Don't allow unmapped identifiers in richacls
From: Andreas Gruenbacher <agruenba () redhat ! com>
Date: 2015-10-23 18:41:55
Message-ID: 1445625722-13791-43-git-send-email-agruenba () redhat ! com
[Download RAW message or body]
Don't allow acls which contain unmapped identifiers: they are meaningful
for remote file systems only.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
---
fs/xfs/xfs_richacl.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/fs/xfs/xfs_richacl.c b/fs/xfs/xfs_richacl.c
index 92a036e..6870679 100644
--- a/fs/xfs/xfs_richacl.c
+++ b/fs/xfs/xfs_richacl.c
@@ -78,6 +78,10 @@ xfs_set_richacl(struct inode *inode, struct richacl *acl)
if (!acl)
return xfs_remove_richacl(inode);
+ /* Don't allow acls with unmapped identifiers. */
+ if (richacl_has_unmapped_identifiers(acl))
+ return -EINVAL;
+
if (richacl_equiv_mode(acl, &mode) == 0) {
xfs_set_mode(inode, mode);
return xfs_remove_richacl(inode);
--
2.5.0
--
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