tree 42a13c32119aa6083ec16feceb5d6dab220108d5
parent b4a40883385d610c55c11de52002bd8f9c2d790e
author Darrick J. Wong <darrick.wong@oracle.com> 1406254767 -0400
committer Theodore Ts'o <tytso@mit.edu> 1406254767 -0400

e2fsck: fix off-by-one bounds check on group number

Since fs->group_desc_count is the number of block groups, the number
of the last group is always one less than this count.  Fix the bounds
check to reflect that.

This flaw shouldn't have any user-visible side effects, since the
block bitmap test based on last_grp later on can handle overbig block
numbers.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>