Commit 545d6809 authored by Tyler Hicks's avatar Tyler Hicks

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/926292Signed-off-by: default avatarTyler Hicks <tyhicks@canonical.com>
Reported-by: default avatarSebastien Bacher <seb128@ubuntu.com>
Cc: John Johansen <john.johansen@canonical.com>
Cc: <stable@vger.kernel.org>
parent 4a26620d
...@@ -1085,6 +1085,8 @@ ecryptfs_setxattr(struct dentry *dentry, const char *name, const void *value, ...@@ -1085,6 +1085,8 @@ ecryptfs_setxattr(struct dentry *dentry, const char *name, const void *value,
} }
rc = vfs_setxattr(lower_dentry, name, value, size, flags); rc = vfs_setxattr(lower_dentry, name, value, size, flags);
if (!rc)
fsstack_copy_attr_all(dentry->d_inode, lower_dentry->d_inode);
out: out:
return rc; return rc;
} }
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment