From 06817176784f620984200dc5d7cbe16984f7b262 Mon Sep 17 00:00:00 2001 From: Sebastian Siewior Date: Fri, 3 Aug 2007 20:33:47 +0800 Subject: [PATCH] [CRYPTO] api: fix writting into unallocated memory in setkey_aligned setkey_unaligned() commited in ca7c39385ce1a7b44894a4b225a4608624e90730 overwrites unallocated memory in the following memset() because I used the wrong buffer length. Signed-off-by: Sebastian Siewior Signed-off-by: Herbert Xu --- crypto/ablkcipher.c | 2 +- crypto/blkcipher.c | 2 +- crypto/cipher.c | 2 +- crypto/hash.c | 2 +- 4 files changed, 4 insertions(+), 4 deletions(-) diff --git a/crypto/ablkcipher.c b/crypto/ablkcipher.c index 1c166b47b4cc..3dbb1cc6eab5 100644 --- a/crypto/ablkcipher.c +++ b/crypto/ablkcipher.c @@ -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; } diff --git a/crypto/blkcipher.c b/crypto/blkcipher.c index 40a3dcff15bb..7755834b8846 100644 --- a/crypto/blkcipher.c +++ b/crypto/blkcipher.c @@ -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; } diff --git a/crypto/cipher.c b/crypto/cipher.c index 0b2650c2014b..fc6b46f2a9b0 100644 --- a/crypto/cipher.c +++ b/crypto/cipher.c @@ -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; diff --git a/crypto/hash.c b/crypto/hash.c index 4d75ca7b57b2..4fd470bd729b 100644 --- a/crypto/hash.c +++ b/crypto/hash.c @@ -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; } -- 2.30.2