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authorHerbert Xu <herbert@gondor.apana.org.au>2006-01-07 16:24:15 +1100
committerDavid S. Miller <davem@sunset.davemloft.net>2006-01-09 14:15:58 -0800
commit7302533aac2df321b76e8a113e5cfa529c825b09 (patch)
tree9499633f4d5b6eeecc41ac50cca7fcf5310efd9e /crypto
parentbcb0ad2b34daade529ce1f38eede0ea8b7309535 (diff)
downloadlinux-linaro-stable-7302533aac2df321b76e8a113e5cfa529c825b09.tar.gz
[CRYPTO] api: Require block size to be less than PAGE_SIZE/8
The cipher code path may allocate up to two blocks of data on the stack. Therefore we need to place limits on the maximum block size. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
-rw-r--r--crypto/api.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/crypto/api.c b/crypto/api.c
index 2715afdf678c..e26156f71839 100644
--- a/crypto/api.c
+++ b/crypto/api.c
@@ -251,7 +251,7 @@ int crypto_register_alg(struct crypto_alg *alg)
if (alg->cra_alignmask & alg->cra_blocksize)
return -EINVAL;
- if (alg->cra_blocksize > PAGE_SIZE)
+ if (alg->cra_blocksize > PAGE_SIZE / 8)
return -EINVAL;
if (alg->cra_priority < 0)