md/raid10: fix overflow of md/safe_mode_delay

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[ Upstream commit 6beb489b2e ]

There is no input check when echo md/safe_mode_delay in safe_delay_store().
And msec might also overflow when HZ < 1000 in safe_delay_show(), Fix it by
checking overflow in safe_delay_store() and use unsigned long conversion in
safe_delay_show().

Fixes: 72e02075a3 ("md: factor out parsing of fixed-point numbers")
Signed-off-by: Li Nan <linan122@huawei.com>
Signed-off-by: Song Liu <song@kernel.org>
Link: https://lore.kernel.org/r/20230522072535.1523740-2-linan666@huaweicloud.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Li Nan 2023-05-22 15:25:33 +08:00 • committed by Greg Kroah-Hartman

parent bea301c046

commit 138ad092e9

1 changed files with 4 additions and 3 deletions

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drivers/md/md.c

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