debian/patches/extra/CVE-2016-5106-scsi-megasas-use-appropriate-property-buffer-size.patch

   1 From fdcbd7ebf09947c2b65cbb10366eba6382e3c0d6 Mon Sep 17 00:00:00 2001
   2 From: Prasad J Pandit <pjp@fedoraproject.org>
   3 Date: Wed, 25 May 2016 16:01:29 +0530
   4 Subject: [PATCH 2/9] scsi: megasas: use appropriate property buffer size
   5
   6 When setting MegaRAID SAS controller properties via MegaRAID
   7 Firmware Interface(MFI) commands, a user supplied size parameter
   8 is used to set property value. Use appropriate size value to avoid
   9 OOB access issues.
  10
  11 Reported-by: Li Qiang <liqiang6-s@360.cn>
  12 Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
  13 Message-Id: <1464172291-2856-2-git-send-email-ppandit@redhat.com>
  14 Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
  15 ---
  16
  17 Notes:
  18     CVE-2016-5106
  19
  20  hw/scsi/megasas.c | 2 +-
  21  1 file changed, 1 insertion(+), 1 deletion(-)
  22
  23 diff --git a/hw/scsi/megasas.c b/hw/scsi/megasas.c
  24 index 8526c01..05c72b0 100644
  25 --- a/hw/scsi/megasas.c
  26 +++ b/hw/scsi/megasas.c
  27 @@ -1445,7 +1445,7 @@ static int megasas_dcmd_set_properties(MegasasState *s, MegasasCmd *cmd)
  28                                              dcmd_size);
  29          return MFI_STAT_INVALID_PARAMETER;
  30      }
  31 -    dma_buf_write((uint8_t *)&info, cmd->iov_size, &cmd->qsg);
  32 +    dma_buf_write((uint8_t *)&info, dcmd_size, &cmd->qsg);
  33      trace_megasas_dcmd_unsupported(cmd->index, cmd->iov_size);
  34      return MFI_STAT_OK;
  35  }
  36 --
  37 2.1.4
  38