Ritesh Harjani
d11502fa26
ext4: fix loff_t overflow in ext4_max_bitmap_size()
...
commit 75ca6ad408f459f00b09a64f04c774559848c097 upstream.
We should use unsigned long long rather than loff_t to avoid
overflow in ext4_max_bitmap_size() for comparison before returning.
w/o this patch sbi->s_bitmap_maxbytes was becoming a negative
value due to overflow of upper_limit (with has_huge_files as true)
Below is a quick test to trigger it on a 64KB pagesize system.
sudo mkfs.ext4 -b 65536 -O ^has_extents,^64bit /dev/loop2
sudo mount /dev/loop2 /mnt
sudo echo "hello" > /mnt/hello -> This will error out with
"echo: write error: File too large"
Signed-off-by: Ritesh Harjani <riteshh@linux.ibm.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
Link: https://lore.kernel.org/r/594f409e2c543e90fd836b78188dfa5c575065ba.1622867594.git.riteshh@linux.ibm.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-10-06 15:56:01 +02:00
..
2021-09-08 08:49:01 +02:00
2020-10-24 12:26:05 -07:00
2021-03-04 11:38:37 +01:00
2021-09-30 10:11:01 +02:00
2020-10-16 11:11:22 -07:00
2020-09-18 16:45:50 -04:00
2021-01-06 14:56:52 +01:00
2021-09-30 10:11:04 +02:00
2021-03-30 14:32:07 +02:00
2021-09-26 14:09:00 +02:00
2021-09-30 10:11:04 +02:00
2021-07-14 16:56:48 +02:00
2020-09-18 16:45:50 -04:00
2021-09-08 08:48:59 +02:00
2021-10-06 15:55:59 +02:00
2021-07-14 16:55:59 +02:00
2021-05-26 12:06:55 +02:00
2020-11-25 16:55:02 +01:00
2020-09-18 16:45:50 -04:00
2021-07-14 16:56:53 +02:00
2021-07-14 16:56:52 +02:00
2020-10-24 12:26:05 -07:00
2021-10-06 15:56:01 +02:00
2021-09-18 13:40:16 +02:00
2020-09-18 16:45:50 -04:00
2021-09-18 13:40:15 +02:00
2021-09-22 12:28:00 +02:00
2021-09-30 10:11:04 +02:00
2021-07-31 08:16:12 +02:00
2021-05-19 10:13:10 +02:00
2021-04-14 08:42:06 +02:00
2020-09-18 16:45:50 -04:00
2021-07-28 14:35:46 +02:00
2021-09-30 10:11:04 +02:00
2021-09-15 09:50:25 +02:00
2021-05-19 10:13:19 +02:00
2021-05-11 14:47:36 +02:00
2021-07-20 16:05:40 +02:00
2021-01-27 11:55:29 +01:00
2021-09-18 13:40:30 +02:00
2020-09-18 16:45:50 -04:00
2021-09-18 13:40:13 +02:00
2020-12-30 11:53:45 +01:00
2021-09-18 13:40:33 +02:00
2021-09-26 14:09:01 +02:00
2021-09-18 13:40:38 +02:00
2021-07-14 16:55:38 +02:00
2021-09-30 10:10:58 +02:00
2020-09-22 23:39:45 -04:00
2021-07-20 16:05:48 +02:00
2021-09-18 13:40:35 +02:00
2021-07-28 14:35:42 +02:00
2021-07-14 16:56:12 +02:00
2021-09-30 10:11:08 +02:00
2020-09-18 16:45:50 -04:00
2021-03-04 11:37:53 +01:00
2020-10-16 11:11:22 -07:00
2021-08-12 13:22:19 +02:00
2020-10-24 12:26:05 -07:00
2021-05-19 10:13:10 +02:00
2020-10-02 12:02:30 +02:00
2020-09-18 16:45:50 -04:00
2021-09-30 10:11:04 +02:00
2021-09-15 09:50:27 +02:00
2020-10-24 12:26:05 -07:00
2020-09-10 14:03:31 -07:00
2021-08-18 08:59:18 +02:00
2021-10-06 15:55:46 +02:00
2021-09-30 10:11:04 +02:00
2021-03-25 09:04:05 +01:00
2020-11-10 16:53:07 -08:00
2020-10-16 11:11:21 -07:00
2021-10-06 15:55:59 +02:00
2020-08-24 08:49:13 +10:00
2021-03-17 17:06:35 +01:00
2021-06-03 09:00:45 +02:00
2020-10-18 09:27:09 -07:00
2021-09-26 14:08:56 +02:00
2020-10-14 14:54:45 -07:00
2021-07-14 16:56:13 +02:00
2020-07-29 16:14:27 +02:00
2021-04-14 08:41:58 +02:00
2021-05-11 14:47:12 +02:00
2021-09-08 08:49:00 +02:00
2021-09-15 09:50:27 +02:00
2020-10-17 15:05:30 -06:00
2021-01-30 13:55:18 +01:00
2020-08-23 17:36:59 -05:00
2020-10-13 18:38:27 -07:00
2020-07-29 16:14:27 +02:00
2021-07-14 16:56:31 +02:00
2020-08-23 17:36:59 -05:00
2020-08-04 21:02:38 -04:00
2020-12-30 11:53:49 +01:00
2021-07-31 08:16:11 +02:00
2021-09-30 10:11:05 +02:00
2021-09-18 13:40:06 +02:00
2021-02-13 13:54:56 +01:00
2020-07-31 08:16:01 +02:00
2021-02-17 11:02:21 +01:00
2020-10-05 13:37:04 +02:00
2020-11-22 10:48:22 -08:00
2021-03-20 10:43:44 +01:00
2020-10-23 11:33:41 -07:00
2021-04-14 08:41:58 +02:00
2021-08-26 08:35:57 -04:00
2021-07-14 16:55:59 +02:00
2021-09-03 10:09:28 +02:00
2021-03-17 17:06:13 +01:00
2020-12-30 11:54:02 +01:00
2020-10-23 11:33:41 -07:00
2021-04-21 13:00:54 +02:00
2020-10-15 09:48:49 -07:00
2021-03-25 09:04:16 +01:00
2021-07-20 16:05:59 +02:00
2020-08-23 17:36:59 -05:00
2020-10-24 12:40:18 -07:00
2021-05-11 14:47:33 +02:00
2020-08-27 16:06:47 -04:00
2020-11-10 16:53:11 -08:00
2021-09-18 13:40:17 +02:00
2020-07-31 08:16:01 +02:00
2020-10-13 18:38:27 -07:00