ext4: set the type of max_zeroout to unsigned int to avoid overflow

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[ Upstream commit 261341a932 ]

The max_zeroout is of type int and the s_extent_max_zeroout_kb is of
type uint, and the s_extent_max_zeroout_kb can be freely modified via
the sysfs interface. When the block size is 1024, max_zeroout may
overflow, so declare it as unsigned int to avoid overflow.

Signed-off-by: Baokun Li <libaokun1@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20240319113325.3110393-9-libaokun1@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Baokun Li 2024-03-19 19:33:24 +08:00 • committed by Greg Kroah-Hartman

parent 4ca547488d

commit e9c0aa6c3d

1 changed files with 2 additions and 1 deletions

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fs/ext4/extents.c

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