1 files changed, 17 insertions, 3 deletions

diff --git a/drivers/scsi/megaraid/megaraid_sas.c b/drivers/scsi/megaraid/megaraid_sas.c
index 99ff99e45bee..d9b8ca5116bc 100644
--- a/drivers/scsi/megaraid/megaraid_sas.c
+++ b/drivers/scsi/megaraid/megaraid_sas.c
@@ -3781,6 +3781,7 @@ static int megasas_mgmt_compat_ioctl_fw(struct file *file, unsigned long arg)
             compat_alloc_user_space(sizeof(struct megasas_iocpacket));
         int i;
         int error = 0;
+        compat_uptr_t ptr;
 
         if (clear_user(ioc, sizeof(*ioc)))
                 return -EFAULT;
@@ -3793,9 +3794,22 @@ static int megasas_mgmt_compat_ioctl_fw(struct file *file, unsigned long arg)
             copy_in_user(&ioc->sge_count, &cioc->sge_count, sizeof(u32)))
                 return -EFAULT;
 
-        for (i = 0; i < MAX_IOCTL_SGE; i++) {
-                compat_uptr_t ptr;
+        /*
+         * The sense_ptr is used in megasas_mgmt_fw_ioctl only when
+         * sense_len is not null, so prepare the 64bit value under
+         * the same condition.
+         */
+        if (ioc->sense_len) {
+                void __user **sense_ioc_ptr =
+                        (void __user **)(ioc->frame.raw + ioc->sense_off);
+                compat_uptr_t *sense_cioc_ptr =
+                        (compat_uptr_t *)(cioc->frame.raw + cioc->sense_off);
+                if (get_user(ptr, sense_cioc_ptr) ||
+                    put_user(compat_ptr(ptr), sense_ioc_ptr))
+                        return -EFAULT;
+        }
 
+        for (i = 0; i < MAX_IOCTL_SGE; i++) {
                 if (get_user(ptr, &cioc->sgl[i].iov_base) ||
                     put_user(compat_ptr(ptr), &ioc->sgl[i].iov_base) ||
                     copy_in_user(&ioc->sgl[i].iov_len,
@@ -4046,7 +4060,7 @@ megasas_aen_polling(struct work_struct *work)
 }
 
 
-static DRIVER_ATTR(poll_mode_io, S_IRUGO|S_IWUGO,
+static DRIVER_ATTR(poll_mode_io, S_IRUGO|S_IWUSR,
                 megasas_sysfs_show_poll_mode_io,
                 megasas_sysfs_set_poll_mode_io);