File 0066-scsi-initialise-info-object-with-ap.patch of Package qemu.4226

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File 0066-scsi-initialise-info-object-with-ap.patch of Package qemu.4226

From 8fad4d8ca21748f4ab98a7bb0437bc98038d9bd0 Mon Sep 17 00:00:00 2001
From: P J P <ppandit@redhat.com>
Date: Mon, 21 Dec 2015 15:13:13 +0530
Subject: [PATCH] scsi: initialise info object with appropriate size

While processing controller 'CTRL_GET_INFO' command, the routine
'megasas_ctrl_get_info' overflows the '&info' object size. Use its
appropriate size to null initialise it.

Reported-by: Qinghao Tang <luodalongde@gmail.com>
Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
Message-Id: <alpine.LFD.2.20.1512211501420.22471@wniryva>
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: P J P <ppandit@redhat.com>
(cherry picked from commit 36fef36b91f7ec0435215860f1458b5342ce2811)
[BR: BSC#961556 CVE-2015-8613]
Signed-off-by: Bruce Rogers <brogers@suse.com>
---
 hw/scsi/megasas.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/scsi/megasas.c b/hw/scsi/megasas.c
index ad7317bfe9..108448ea18 100644
--- a/hw/scsi/megasas.c
+++ b/hw/scsi/megasas.c
@@ -718,7 +718,7 @@ static int megasas_ctrl_get_info(MegasasState *s, MegasasCmd *cmd)
     BusChild *kid;
     int num_pd_disks = 0;
 
-    memset(&info, 0x0, cmd->iov_size);
+    memset(&info, 0x0, dcmd_size);
     if (cmd->iov_size < dcmd_size) {
         trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size,
                                             dcmd_size);

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File 0066-scsi-initialise-info-object-with-ap.patch of Package qemu.4226

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