Jan Kara 33930a67bd quota: Don't overflow quota file offsets
[ Upstream commit 10f04d40a9fa29785206c619f80d8beedb778837 ]

The on-disk quota format supports quota files with upto 2^32 blocks. Be
careful when computing quota file offsets in the quota files from block
numbers as they can overflow 32-bit types. Since quota files larger than
4GB would require ~26 millions of quota users, this is mostly a
theoretical concern now but better be careful, fuzzers would find the
problem sooner or later anyway...

Reviewed-by: Andreas Dilger <adilger@dilger.ca>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-01-09 13:35:50 +01:00
..
2020-11-10 10:23:59 +01:00
2020-01-29 10:24:34 +01:00
2019-08-06 18:29:38 +02:00
2020-10-29 09:05:43 +01:00
2020-08-21 11:02:08 +02:00
2017-11-30 08:39:04 +00:00
2020-12-29 13:45:05 +01:00
2019-03-13 14:04:52 -07:00
2020-11-18 18:26:28 +01:00
2018-12-21 14:11:31 +01:00
2020-04-02 17:20:27 +02:00
2018-02-17 13:21:15 +01:00
2017-06-14 15:06:01 +02:00