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-rw-r--r--drivers/scsi/dpt_i2o.c4
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;