Make sure ovl_own_xattr_handler only matches attribute names starting
with "overlay.", not "overlayXXX".
Signed-off-by: Andreas Gruenbacher <agruenba@xxxxxxxxxx>
---
fs/overlayfs/inode.c | 5 ++---
fs/overlayfs/overlayfs.h | 4 ++--
2 files changed, 4 insertions(+), 5 deletions(-)
diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c
index 1b885c1..859e42c 100644
--- a/fs/overlayfs/inode.c
+++ b/fs/overlayfs/inode.c
@@ -193,9 +193,8 @@ static int ovl_readlink(struct dentry *dentry, char __user *buf, int bufsiz)
static bool ovl_is_private_xattr(const char *name)
{
-#define OVL_XATTR_PRE_NAME OVL_XATTR_PREFIX "."
- return strncmp(name, OVL_XATTR_PRE_NAME,
- sizeof(OVL_XATTR_PRE_NAME) - 1) == 0;
+ return strncmp(name, OVL_XATTR_PREFIX,
+ sizeof(OVL_XATTR_PREFIX) - 1) == 0;
}
int ovl_setxattr(struct dentry *dentry, struct inode *inode,
diff --git a/fs/overlayfs/overlayfs.h b/fs/overlayfs/overlayfs.h
index e4f5c95..77fd667 100644
--- a/fs/overlayfs/overlayfs.h
+++ b/fs/overlayfs/overlayfs.h
@@ -24,8 +24,8 @@ enum ovl_path_type {
(OVL_TYPE_MERGE(type) || !OVL_TYPE_UPPER(type))
-#define OVL_XATTR_PREFIX XATTR_TRUSTED_PREFIX "overlay"
-#define OVL_XATTR_OPAQUE OVL_XATTR_PREFIX ".opaque"
+#define OVL_XATTR_PREFIX XATTR_TRUSTED_PREFIX "overlay."
+#define OVL_XATTR_OPAQUE OVL_XATTR_PREFIX "opaque"
#define OVL_ISUPPER_MASK 1UL
--
2.7.4
--
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