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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
commitca43444e4342e9ce38202fb1082d38a7afa8f977 (patch)
tree3400d3466c252957ead4c87a19e5784cd1bf299c /crypto
parent173ae9ba63349194ae180622f05fb49f55a4df46 (diff)
parent70d906bc17500edfa9bdd8c8b7e59618c7911613 (diff)
downloadlinux-ca43444e4342e9ce38202fb1082d38a7afa8f977.tar.bz2
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 b4ffc5be1a93..e5b5721809e2 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 11b981492031..8cc1622b2ee0 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)