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| author | Dmitry Eremin-Solenikov | 2018-10-20 01:01:52 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2019-01-09 17:38:45 +0100 |
| commit | 99dcd45f274e10b0a4b04f2836218762ed2294d4 (patch) | |
| tree | fb4c174af62c42f247f801ffb3af98d5c7323887 /crypto | |
| parent | crypto: testmgr - add AES-CFB tests (diff) | |
| download | kernel-qcow2-linux-99dcd45f274e10b0a4b04f2836218762ed2294d4.tar.gz kernel-qcow2-linux-99dcd45f274e10b0a4b04f2836218762ed2294d4.tar.xz kernel-qcow2-linux-99dcd45f274e10b0a4b04f2836218762ed2294d4.zip | |
crypto: cfb - fix decryption
commit fa4600734b74f74d9169c3015946d4722f8bcf79 upstream.
crypto_cfb_decrypt_segment() incorrectly XOR'ed generated keystream with
IV, rather than with data stream, resulting in incorrect decryption.
Test vectors will be added in the next patch.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'crypto')
| -rw-r--r-- | crypto/cfb.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/crypto/cfb.c b/crypto/cfb.c index 20987d0e09d8..e81e45673498 100644 --- a/crypto/cfb.c +++ b/crypto/cfb.c @@ -144,7 +144,7 @@ static int crypto_cfb_decrypt_segment(struct skcipher_walk *walk, do { crypto_cfb_encrypt_one(tfm, iv, dst); - crypto_xor(dst, iv, bsize); + crypto_xor(dst, src, bsize); iv = src; src += bsize; |