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| H A D | resize.c | diff 4f2f76f751433908364ccff82f437a57d0e6e9b7 Fri May 25 11:51:25 CDT 2018 Jan Kara <jack@suse.cz> ext4: fix fencepost error in check for inode count overflow during resize
ext4_resize_fs() has an off-by-one bug when checking whether growing of
a filesystem will not overflow inode count. As a result it allows a
filesystem with 8192 inodes per group to grow to 64TB which overflows
inode count to 0 and makes filesystem unusable. Fix it.
Cc: stable@vger.kernel.org
Fixes: 3f8a6411fbada1fa482276591e037f3b1adcf55b
Reported-by: Jaco Kroon <jaco@uls.co.za>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Andreas Dilger <adilger@dilger.ca>
diff 3f8a6411fbada1fa482276591e037f3b1adcf55b Sun Apr 21 21:56:32 CDT 2013 Theodore Ts'o <tytso@mit.edu> ext4: add check for inodes_count overflow in new resize ioctl
Addresses-Red-Hat-Bugzilla: #913245
Reported-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com>
Cc: stable@vger.kernel.org
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