dm-integrity: fix a memory leak when rechecking the data

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[ Upstream commit 55e565c42d ]

Memory for the "checksums" pointer will leak if the data is rechecked
after checksum failure (because the associated kfree won't happen due
to 'goto skip_io').

Fix this by freeing the checksums memory before recheck, and just use
the "checksum_onstack" memory for storing checksum during recheck.

Fixes: c88f5e553f ("dm-integrity: recheck the integrity tag after a failure")
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Mikulas Patocka 2024-03-18 18:35:06 +01:00 • committed by Sasha Levin

parent 4a73b5ac78

commit 338580a7fb

1 changed files with 3 additions and 3 deletions

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drivers/md/dm-integrity.c

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