eCryptfs: Copy up lower inode attrs after setting lower xattr

After passing through a ->setxattr() call, eCryptfs needs to copy the inode attributes from the lower inode to the eCryptfs inode, as they may have changed in the lower filesystem's ->setxattr() path. One example is if an extended attribute containing a POSIX Access Control List is being set. The new ACL may cause the lower filesystem to modify the mode of the lower inode and the eCryptfs inode would need to be updated to reflect the new mode. https://launchpad.net/bugs/926292 Signed-off-by: Tyler Hicks <[email protected]> Reported-by: Sebastien Bacher <[email protected]> Cc: John Johansen <[email protected]> Cc: <[email protected]>
micronews · Feb 16, 2012 · 545d680 · 545d680
1 parent 4a26620
commit 545d680
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
@@ -1085,6 +1085,8 @@ ecryptfs_setxattr(struct dentry *dentry, const char *name, const void *value,
 	}
 
 	rc = vfs_setxattr(lower_dentry, name, value, size, flags);
+	if (!rc)
+		fsstack_copy_attr_all(dentry->d_inode, lower_dentry->d_inode);
 out:
 	return rc;
 }