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authorLinus Torvalds <torvalds@linux-foundation.org>2015-12-15 10:21:04 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2015-12-15 10:21:04 -0800
commit53915e905e07808ea8960fabacafd2d144087bc2 (patch)
tree918b48b35bf23b02aa20cd4fee9dfa65db185968 /crypto
parentb1d13cb9d87a3d25f79388d8db914a482ce5b3b7 (diff)
parente27bb8291df73746266cd9a706e7d4908ab29297 (diff)
downloadlinux-crypto-53915e905e07808ea8960fabacafd2d144087bc2.tar.gz
linux-crypto-53915e905e07808ea8960fabacafd2d144087bc2.zip
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fix from Herbert Xu: "This fixes a boundary condition in the blkcipher SG walking code that can lead to a crash when used with the new chacha20 algorithm" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: skcipher - Copy iv from desc even for 0-len walks
Diffstat (limited to 'crypto')
-rw-r--r--crypto/ablkcipher.c2
-rw-r--r--crypto/blkcipher.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/crypto/ablkcipher.c b/crypto/ablkcipher.c
index b4ffc5be..e5b57218 100644
--- a/crypto/ablkcipher.c
+++ b/crypto/ablkcipher.c
@@ -277,12 +277,12 @@ static int ablkcipher_walk_first(struct ablkcipher_request *req,
if (WARN_ON_ONCE(in_irq()))
return -EDEADLK;
+ walk->iv = req->info;
walk->nbytes = walk->total;
if (unlikely(!walk->total))
return 0;
walk->iv_buffer = NULL;
- walk->iv = req->info;
if (unlikely(((unsigned long)walk->iv & alignmask))) {
int err = ablkcipher_copy_iv(walk, tfm, alignmask);
diff --git a/crypto/blkcipher.c b/crypto/blkcipher.c
index 11b98149..8cc1622b 100644
--- a/crypto/blkcipher.c
+++ b/crypto/blkcipher.c
@@ -326,12 +326,12 @@ static int blkcipher_walk_first(struct blkcipher_desc *desc,
if (WARN_ON_ONCE(in_irq()))
return -EDEADLK;
+ walk->iv = desc->info;
walk->nbytes = walk->total;
if (unlikely(!walk->total))
return 0;
walk->buffer = NULL;
- walk->iv = desc->info;
if (unlikely(((unsigned long)walk->iv & walk->alignmask))) {
int err = blkcipher_copy_iv(walk);
if (err)