debian/patches/extra/CVE-2016-7423-scsi-mptsas-use-g_new0-to-allocate-MPTSASRequest-obj.patch

   1 From 670e56d3ed2918b3861d9216f2c0540d9e9ae0d5 Mon Sep 17 00:00:00 2001
   2 From: Li Qiang <liqiang6-s@360.cn>
   3 Date: Mon, 12 Sep 2016 18:14:11 +0530
   4 Subject: [PATCH] scsi: mptsas: use g_new0 to allocate MPTSASRequest object
   5
   6 When processing IO request in mptsas, it uses g_new to allocate
   7 a 'req' object. If an error occurs before 'req->sreq' is
   8 allocated, It could lead to an OOB write in mptsas_free_request
   9 function. Use g_new0 to avoid it.
  10
  11 Reported-by: Li Qiang <liqiang6-s@360.cn>
  12 Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
  13 Message-Id: <1473684251-17476-1-git-send-email-ppandit@redhat.com>
  14 Cc: qemu-stable@nongnu.org
  15 Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
  16 ---
  17  hw/scsi/mptsas.c | 2 +-
  18  1 file changed, 1 insertion(+), 1 deletion(-)
  19
  20 diff --git a/hw/scsi/mptsas.c b/hw/scsi/mptsas.c
  21 index 0e0a22f..eaae1bb 100644
  22 --- a/hw/scsi/mptsas.c
  23 +++ b/hw/scsi/mptsas.c
  24 @@ -304,7 +304,7 @@ static int mptsas_process_scsi_io_request(MPTSASState *s,
  25          goto bad;
  26      }
  27
  28 -    req = g_new(MPTSASRequest, 1);
  29 +    req = g_new0(MPTSASRequest, 1);
  30      QTAILQ_INSERT_TAIL(&s->pending, req, next);
  31      req->scsi_io = *scsi_io;
  32      req->dev = s;
  33 --
  34 2.1.4
  35