File 0270-scsi-megasas-null-terminate-bios-ve.patch of Package qemu.4227

From de2bc5917f2b6429c09c95261e03d671a4293c6b Mon Sep 17 00:00:00 2001
From: Prasad J Pandit <pjp@fedoraproject.org>
Date: Tue, 7 Jun 2016 16:44:03 +0530
Subject: [PATCH] scsi: megasas: null terminate bios version buffer

While reading information via 'megasas_ctrl_get_info' routine,
a local bios version buffer isn't null terminated. Add the
terminating null byte to avoid any OOB access.

Reported-by: Li Qiang <liqiang6-s@360.cn>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit 844864fbae66935951529408831c2f22367a57b6)
[BR: CVE-2016-5337 BSC#983961]
Signed-off-by: Bruce Rogers <brogers@suse.com>
---
 hw/scsi/megasas.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/hw/scsi/megasas.c b/hw/scsi/megasas.c
index 99087380bc..502020c82a 100644
--- a/hw/scsi/megasas.c
+++ b/hw/scsi/megasas.c
@@ -728,6 +728,7 @@ static int megasas_ctrl_get_info(MegasasState *s, MegasasCmd *cmd)
 
         ptr = memory_region_get_ram_ptr(&pci_dev->rom);
         memcpy(biosver, ptr + 0x41, 31);
+        biosver[31] = 0;
         memcpy(info.image_component[1].name, "BIOS", 4);
         memcpy(info.image_component[1].version, biosver,
                strlen((const char *)biosver));