diff options
| author | Longpeng(Mike) <longpeng2@huawei.com> | 2020-06-02 15:04:59 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2020-06-04 15:36:51 -0400 |
| commit | b02989f37fc5e865ceeee9070907e4493b3a21e2 (patch) | |
| tree | 970ffa25a0de724103a206f732f898abaac9ea62 /fs/fs_parser.c | |
| parent | fb69c2c896fc8289b0d9e2c0791472e7cd398bca (diff) | |
crypto: virtio: Fix src/dst scatterlist calculation in __virtio_crypto_skcipher_do_req()
The system will crash when the users insmod crypto/tcrypt.ko with mode=38
( testing "cts(cbc(aes))" ).
Usually the next entry of one sg will be @sg@ + 1, but if this sg element
is part of a chained scatterlist, it could jump to the start of a new
scatterlist array. Fix it by sg_next() on calculation of src/dst
scatterlist.
Fixes: dbaf0624ffa5 ("crypto: add virtio-crypto driver")
Reported-by: LABBE Corentin <clabbe@baylibre.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
Link: https://lore.kernel.org/r/20200123101000.GB24255@Red
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Longpeng(Mike) <longpeng2@huawei.com>
Link: https://lore.kernel.org/r/20200602070501.2023-2-longpeng2@huawei.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'fs/fs_parser.c')
0 files changed, 0 insertions, 0 deletions