xfs: attr leaf verifier needs to check for obviously bad count

Browse source

In the attribute leaf verifier, we can check for obviously bad values of
firstused and count so that later attempts at lasthash don't run off the
end of the memory buffer.  Found by ones fuzzing hdr.count in xfs/400 with
KASAN.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>

...

This commit is contained in:

Darrick J. Wong 2018-01-16 18:54:12 -08:00

parent ce92d29ddf

commit 79a69bf8dc

1 changed files with 21 additions and 5 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

26

fs/xfs/libxfs/xfs_attr_leaf.c

View file