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| author | Linus Torvalds | 2018-08-03 19:09:45 +0200 |
|---|---|---|
| committer | Linus Torvalds | 2018-08-03 19:09:45 +0200 |
| commit | 7123fd41e35a2868cbc2fc611c15a745692b3d78 (patch) | |
| tree | 3a9c9eba5025b65e1785998af7adc99a42c8d4c6 | |
| parent | Merge tag 'media/v4.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mc... (diff) | |
| parent | crypto: padlock-aes - Fix Nano workaround data corruption (diff) | |
| download | kernel-qcow2-linux-7123fd41e35a2868cbc2fc611c15a745692b3d78.tar.gz kernel-qcow2-linux-7123fd41e35a2868cbc2fc611c15a745692b3d78.tar.xz kernel-qcow2-linux-7123fd41e35a2868cbc2fc611c15a745692b3d78.zip | |
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fix from Herbert Xu:
"Fix a memory corruption in the padlock-aes driver"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: padlock-aes - Fix Nano workaround data corruption
| -rw-r--r-- | drivers/crypto/padlock-aes.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/crypto/padlock-aes.c b/drivers/crypto/padlock-aes.c index 1c6cbda56afe..09d823d36d3a 100644 --- a/drivers/crypto/padlock-aes.c +++ b/drivers/crypto/padlock-aes.c @@ -266,6 +266,8 @@ static inline void padlock_xcrypt_ecb(const u8 *input, u8 *output, void *key, return; } + count -= initial; + if (initial) asm volatile (".byte 0xf3,0x0f,0xa7,0xc8" /* rep xcryptecb */ : "+S"(input), "+D"(output) @@ -273,7 +275,7 @@ static inline void padlock_xcrypt_ecb(const u8 *input, u8 *output, void *key, asm volatile (".byte 0xf3,0x0f,0xa7,0xc8" /* rep xcryptecb */ : "+S"(input), "+D"(output) - : "d"(control_word), "b"(key), "c"(count - initial)); + : "d"(control_word), "b"(key), "c"(count)); } static inline u8 *padlock_xcrypt_cbc(const u8 *input, u8 *output, void *key, @@ -284,6 +286,8 @@ static inline u8 *padlock_xcrypt_cbc(const u8 *input, u8 *output, void *key, if (count < cbc_fetch_blocks) return cbc_crypt(input, output, key, iv, control_word, count); + count -= initial; + if (initial) asm volatile (".byte 0xf3,0x0f,0xa7,0xd0" /* rep xcryptcbc */ : "+S" (input), "+D" (output), "+a" (iv) @@ -291,7 +295,7 @@ static inline u8 *padlock_xcrypt_cbc(const u8 *input, u8 *output, void *key, asm volatile (".byte 0xf3,0x0f,0xa7,0xd0" /* rep xcryptcbc */ : "+S" (input), "+D" (output), "+a" (iv) - : "d" (control_word), "b" (key), "c" (count-initial)); + : "d" (control_word), "b" (key), "c" (count)); return iv; } |