Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1199706 > unrolled thread

[RFC v6 34/40] ext4: Don't allow unmapped identifiers in richacls

Back to article view | Back to linux.kernel

This discussion starts older than the indexed window; earlier articles aren't shown. The article labeled Started by below is the oldest one visible, not the original post.

Contents

  [RFC v6 34/40] ext4: Don't allow unmapped identifiers in richacls Andreas Gruenbacher <andreas.gruenbacher@gmail.com> - 2015-08-04 14:00 +0200

#1199706 — [RFC v6 34/40] ext4: Don't allow unmapped identifiers in richacls

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/ext4/richacl.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/fs/ext4/richacl.c b/fs/ext4/richacl.c
index 4385f6d..9d80299 100644
--- a/fs/ext4/richacl.c
+++ b/fs/ext4/richacl.c
@@ -68,8 +68,13 @@ ext4_set_richacl(handle_t *handle, struct inode *inode, struct richacl *acl)
 	int retval;
 
 	if (acl) {
-		mode_t mode = inode->i_mode;
+		mode_t mode;
 
+		/* Don't allow acls with unmapped identifiers. */
+		if (richacl_has_unmapped_identifiers(acl))
+			return -EINVAL;
+
+		mode = inode->i_mode;
 		if (richacl_equiv_mode(acl, &mode) == 0) {
 			inode->i_mode = mode;
 			ext4_mark_inode_dirty(handle, inode);
-- 
2.5.0

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[toc] | [standalone]

Back to top | Article view | linux.kernel

csiph-web