Mikulas Patocka 833309f3fb dm integrity: fix a crash with unusually large tag size
commit b93b6643e9b5a7f260b931e97f56ffa3fa65e26d upstream.

If the user specifies tag size larger than HASH_MAX_DIGESTSIZE,
there's a crash in integrity_metadata().

Cc: stable@vger.kernel.org
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-04-17 10:50:17 +02:00
..
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