| From | Andreas Gruenbacher <> | Subject | [PATCH v11 41/48] xfs: Don't allow unmapped identifiers in richacls | Date | Fri, 16 Oct 2015 17:18:19 +0200 |
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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 73c2d24..4f938b7 100644 --- a/fs/xfs/xfs_richacl.c +++ b/fs/xfs/xfs_richacl.c @@ -77,6 +77,10 @@ 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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