Longpeng(Mike) 5ab6f11621 crypto: virtio: Fix dest length calculation in __virtio_crypto_skcipher_do_req() ... [ Upstream commit d90ca42012 ] The src/dst length is not aligned with AES_BLOCK_SIZE(which is 16) in some testcases in tcrypto.ko. For example, the src/dst length of one of cts(cbc(aes))'s testcase is 17, the crypto_virtio driver will set @src_data_len=16 but @dst_data_len=17 in this case and get a wrong at then end. SRC: pp pp pp pp pp pp pp pp pp pp pp pp pp pp pp pp pp (17 bytes) EXP: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc pp (17 bytes) DST: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc 00 (pollute the last bytes) (pp: plaintext cc:ciphertext) Fix this issue by limit the length of dest buffer. Fixes: dbaf0624ff ("crypto: add virtio-crypto driver") Cc: Gonglei <arei.gonglei@huawei.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: "Michael S. Tsirkin" <mst@redhat.com> Cc: Jason Wang <jasowang@redhat.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: virtualization@lists.linux-foundation.org Cc: linux-kernel@vger.kernel.org Cc: stable@vger.kernel.org Signed-off-by: Longpeng(Mike) <longpeng2@huawei.com> Link: https://lore.kernel.org/r/20200602070501.2023-4-longpeng2@huawei.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2020-06-17 16:40:32 +02:00
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Kconfig	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
Makefile	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
virtio_crypto_algs.c	crypto: virtio: Fix dest length calculation in __virtio_crypto_skcipher_do_req()	2020-06-17 16:40:32 +02:00
virtio_crypto_common.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13	2019-05-21 11:28:45 +02:00
virtio_crypto_core.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13	2019-05-21 11:28:45 +02:00
virtio_crypto_mgr.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13	2019-05-21 11:28:45 +02:00