xfs: check for bogus values in btree block headers
authorDarrick J. Wong <darrick.wong@oracle.com>
Mon, 5 Dec 2016 01:33:54 +0000 (12:33 +1100)
committerDave Chinner <david@fromorbit.com>
Mon, 5 Dec 2016 01:33:54 +0000 (12:33 +1100)
commitbb3be7e7c1c18e1b141d4cadeb98cc89ecf78099
treeebc408a6b29da392335d2969b5bb2bd760b3ed5e
parentd2a047f31e86941fa896e0e3271536d50aba415e
xfs: check for bogus values in btree block headers

When we're reading a btree block, make sure that what we retrieved
matches the owner and level; and has a plausible number of records.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
fs/xfs/libxfs/xfs_btree.c