|
 |
b24b7f |
From: P J P <ppandit@redhat.com>
|
|
|
b24b7f |
Date: Mon, 21 Dec 2015 15:13:13 +0530
|
|
|
b24b7f |
Subject: [PATCH] scsi: initialise info object with appropriate size
|
|
|
b24b7f |
|
|
|
b24b7f |
While processing controller 'CTRL_GET_INFO' command, the routine
|
|
|
b24b7f |
'megasas_ctrl_get_info' overflows the '&info' object size. Use its
|
|
|
b24b7f |
appropriate size to null initialise it.
|
|
|
b24b7f |
|
|
|
b24b7f |
Reported-by: Qinghao Tang <luodalongde@gmail.com>
|
|
|
b24b7f |
Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
|
|
|
b24b7f |
Message-Id: <alpine.LFD.2.20.1512211501420.22471@wniryva>
|
|
|
b24b7f |
Cc: qemu-stable@nongnu.org
|
|
|
b24b7f |
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
|
|
|
b24b7f |
Signed-off-by: P J P <ppandit@redhat.com>
|
|
|
b24b7f |
(cherry picked from commit 36fef36b91f7ec0435215860f1458b5342ce2811)
|
|
|
b24b7f |
---
|
|
|
b24b7f |
hw/scsi/megasas.c | 2 +-
|
|
|
b24b7f |
1 file changed, 1 insertion(+), 1 deletion(-)
|
|
|
b24b7f |
|
|
|
b24b7f |
diff --git a/hw/scsi/megasas.c b/hw/scsi/megasas.c
|
|
|
b24b7f |
index d7dc667..576f56c 100644
|
|
|
b24b7f |
--- a/hw/scsi/megasas.c
|
|
|
b24b7f |
+++ b/hw/scsi/megasas.c
|
|
|
b24b7f |
@@ -718,7 +718,7 @@ static int megasas_ctrl_get_info(MegasasState *s, MegasasCmd *cmd)
|
|
|
b24b7f |
BusChild *kid;
|
|
|
b24b7f |
int num_pd_disks = 0;
|
|
|
b24b7f |
|
|
|
b24b7f |
- memset(&info, 0x0, cmd->iov_size);
|
|
|
b24b7f |
+ memset(&info, 0x0, dcmd_size);
|
|
|
b24b7f |
if (cmd->iov_size < dcmd_size) {
|
|
|
b24b7f |
trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size,
|
|
|
b24b7f |
dcmd_size);
|