Commit 06817176 authored by Sebastian Siewior's avatar Sebastian Siewior Committed by Herbert Xu

[CRYPTO] api: fix writting into unallocated memory in setkey_aligned

setkey_unaligned() commited in ca7c3938
overwrites unallocated memory in the following memset() because
I used the wrong buffer length.
Signed-off-by: default avatarSebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent d4ac2477
......@@ -35,7 +35,7 @@ static int setkey_unaligned(struct crypto_ablkcipher *tfm, const u8 *key, unsign
alignbuffer = (u8 *)ALIGN((unsigned long)buffer, alignmask + 1);
memcpy(alignbuffer, key, keylen);
ret = cipher->setkey(tfm, alignbuffer, keylen);
memset(alignbuffer, 0, absize);
memset(alignbuffer, 0, keylen);
kfree(buffer);
return ret;
}
......
......@@ -352,7 +352,7 @@ static int setkey_unaligned(struct crypto_tfm *tfm, const u8 *key, unsigned int
alignbuffer = (u8 *)ALIGN((unsigned long)buffer, alignmask + 1);
memcpy(alignbuffer, key, keylen);
ret = cipher->setkey(tfm, alignbuffer, keylen);
memset(alignbuffer, 0, absize);
memset(alignbuffer, 0, keylen);
kfree(buffer);
return ret;
}
......
......@@ -36,7 +36,7 @@ static int setkey_unaligned(struct crypto_tfm *tfm, const u8 *key, unsigned int
alignbuffer = (u8 *)ALIGN((unsigned long)buffer, alignmask + 1);
memcpy(alignbuffer, key, keylen);
ret = cia->cia_setkey(tfm, alignbuffer, keylen);
memset(alignbuffer, 0, absize);
memset(alignbuffer, 0, keylen);
kfree(buffer);
return ret;
......
......@@ -40,7 +40,7 @@ static int hash_setkey_unaligned(struct crypto_hash *crt, const u8 *key,
alignbuffer = (u8 *)ALIGN((unsigned long)buffer, alignmask + 1);
memcpy(alignbuffer, key, keylen);
ret = alg->setkey(crt, alignbuffer, keylen);
memset(alignbuffer, 0, absize);
memset(alignbuffer, 0, keylen);
kfree(buffer);
return ret;
}
......
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