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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2015-03-23 14:03:55 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2015-03-23 14:06:50 +0300 |
| commit | a83034f5cb135bceb5b23dce1746ef2d98c68234 (patch) | |
| tree | 4a7db7403110fecc2a1b5ff6b35aca6a92254b68 /drivers/crypto/img-hash.c | |
| parent | 900831a4d9cf3d0280527f176fc20e8c0cdbb63a (diff) | |
| download | linux-a83034f5cb135bceb5b23dce1746ef2d98c68234.tar.xz | |
crypto: img-hash - shift wrapping bug in img_hash_hw_init()
"hdev->req->nbytes" is an unsigned int so we so we lose the upper 3 bits
to the shift wrap bug.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/img-hash.c')
| -rw-r--r-- | drivers/crypto/img-hash.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/crypto/img-hash.c b/drivers/crypto/img-hash.c index 601ab357f661..ad47d0d61098 100644 --- a/drivers/crypto/img-hash.c +++ b/drivers/crypto/img-hash.c @@ -464,7 +464,7 @@ static int img_hash_hw_init(struct img_hash_dev *hdev) img_hash_write(hdev, CR_RESET, CR_RESET_UNSET); img_hash_write(hdev, CR_INTENAB, CR_INT_NEW_RESULTS_SET); - nbits = (hdev->req->nbytes << 3); + nbits = (u64)hdev->req->nbytes << 3; u = nbits >> 32; l = nbits; img_hash_write(hdev, CR_MESSAGE_LENGTH_H, u); |