tree c8ecb3fb14d781cc8ccf13ef4a1ca2b4b9a78f86
parent 6e8ab72a812396996035a37e5ca4b3b99b5d214b
author Theodore Ts'o <tytso@mit.edu> 1529178048 -0400
committer Theodore Ts'o <tytso@mit.edu> 1529178048 -0400

ext4: never move the system.data xattr out of the inode body

When expanding the extra isize space, we must never move the
system.data xattr out of the inode body.  For performance reasons, it
doesn't make any sense, and the inline data implementation assumes
that system.data xattr is never in the external xattr block.

This addresses CVE-2018-10880

https://bugzilla.kernel.org/show_bug.cgi?id=200005

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org