diff options
| author | Alan Cox | 2009-10-27 15:35:35 +0000 |
|---|---|---|
| committer | Linus Torvalds | 2009-10-29 09:01:07 -0700 |
| commit | ef7562b7f28319e6dd1f85dc1af87df2a7a84832 (patch) | |
| tree | 6aa1059426764b68f8698e24ccd7c9946d00fb5d | |
| parent | 0a53f1693cb956ebd8ba0a9acca6adb2dcb99d5f (diff) | |
dpt_i2o: Fix up copy*user
Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | drivers/scsi/dpt_i2o.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/scsi/dpt_i2o.c b/drivers/scsi/dpt_i2o.c index b6af63ca980b..7d1aac31ec8d 100644 --- a/drivers/scsi/dpt_i2o.c +++ b/drivers/scsi/dpt_i2o.c @@ -1918,6 +1918,10 @@ static int adpt_i2o_passthru(adpt_hba* pHba, u32 __user *arg) } size = size>>16; size *= 4; + if (size > MAX_MESSAGE_SIZE) { + rcode = EINVAL; + goto cleanup; + } /* Copy in the user's I2O command */ if (copy_from_user (msg, user_msg, size)) { rcode = -EFAULT; |