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| author |   Linus Torvalds <torvalds@linux-foundation.org> | 2014-05-21 18:34:35 +0900 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-05-21 18:34:35 +0900 |
| commit | 1f5518b4e7febc2a1026fba2ff311ba54be1abc4 (patch) | |
| tree | b637d1d99b876ae6ef721bcfe164a1338b958332 | |
| parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending (diff) | |
| parent | crypto: s390 - fix aes,des ctr mode concurrency finding. (diff) | |
| download | linux-dev-1f5518b4e7febc2a1026fba2ff311ba54be1abc4.tar.xz linux-dev-1f5518b4e7febc2a1026fba2ff311ba54be1abc4.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu:
"This fixes a NULL pointer dereference on allocation failure in caam,
as well as a regression in the ctr mode on s390 that was added with
the recent concurrency fixes"
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: s390 - fix aes,des ctr mode concurrency finding.
crypto: caam - add allocation failure handling in SPRINTFCAT macro
| -rw-r--r-- | arch/s390/crypto/aes_s390.c | 3 | ||||
| -rw-r--r-- | arch/s390/crypto/des_s390.c | 3 | ||||
| -rw-r--r-- | drivers/crypto/caam/error.c | 10 |
3 files changed, 13 insertions, 3 deletions
diff --git a/arch/s390/crypto/aes_s390.c b/arch/s390/crypto/aes_s390.c index cf3c0089bef2..23223cd63e54 100644 --- a/arch/s390/crypto/aes_s390.c +++ b/arch/s390/crypto/aes_s390.c @@ -820,6 +820,9 @@ static int ctr_aes_crypt(struct blkcipher_desc *desc, long func, else memcpy(walk->iv, ctrptr, AES_BLOCK_SIZE); spin_unlock(&ctrblk_lock); + } else { + if (!nbytes) + memcpy(walk->iv, ctrptr, AES_BLOCK_SIZE); } /* * final block may be < AES_BLOCK_SIZE, copy only nbytes diff --git a/arch/s390/crypto/des_s390.c b/arch/s390/crypto/des_s390.c index 0a5aac8a9412..7acb77f7ef1a 100644 --- a/arch/s390/crypto/des_s390.c +++ b/arch/s390/crypto/des_s390.c @@ -429,6 +429,9 @@ static int ctr_desall_crypt(struct blkcipher_desc *desc, long func, else memcpy(walk->iv, ctrptr, DES_BLOCK_SIZE); spin_unlock(&ctrblk_lock); + } else { + if (!nbytes) + memcpy(walk->iv, ctrptr, DES_BLOCK_SIZE); } /* final block may be < DES_BLOCK_SIZE, copy only nbytes */ if (nbytes) { diff --git a/drivers/crypto/caam/error.c b/drivers/crypto/caam/error.c index 9f25f5296029..0eabd81e1a90 100644 --- a/drivers/crypto/caam/error.c +++ b/drivers/crypto/caam/error.c @@ -16,9 +16,13 @@ char *tmp; \ \ tmp = kmalloc(sizeof(format) + max_alloc, GFP_ATOMIC); \ - sprintf(tmp, format, param); \ - strcat(str, tmp); \ - kfree(tmp); \ + if (likely(tmp)) { \ + sprintf(tmp, format, param); \ + strcat(str, tmp); \ + kfree(tmp); \ + } else { \ + strcat(str, "kmalloc failure in SPRINTFCAT"); \ + } \ } static void report_jump_idx(u32 status, char *outstr) |