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[Qemu-commits] [qemu/qemu] 7cdc61: vga: fix region calculation

From: GitHub
Subject: [Qemu-commits] [qemu/qemu] 7cdc61: vga: fix region calculation
Date: Mon, 12 Mar 2018 12:40:24 -0700

  Branch: refs/heads/master
  Home:   https://github.com/qemu/qemu
  Commit: 7cdc61becd095b64a786b2625f321624e7111f3d
  Author: Gerd Hoffmann <address@hidden>
  Date:   2018-03-12 (Mon, 12 Mar 2018)

  Changed paths:
    M hw/display/vga.c

  Log Message:
  vga: fix region calculation

Typically the scanline length and the line offset are identical.  But
in case they are not our calculation for region_end is incorrect.  Using
line_offset is fine for all scanlines, except the last one where we have
to use the actual scanline length.

Fixes: CVE-2018-7550
Reported-by: Ross Lagerwall <address@hidden>
Signed-off-by: Gerd Hoffmann <address@hidden>
Reviewed-by: Prasad J Pandit <address@hidden>
Tested-by: Ross Lagerwall <address@hidden>
Message-id: address@hidden

  Commit: fb5fff15881ba7a002924b967eb211c002897983
  Author: Peter Maydell <address@hidden>
  Date:   2018-03-12 (Mon, 12 Mar 2018)

  Changed paths:
    M hw/display/vga.c

  Log Message:
  Merge remote-tracking branch 'remotes/kraxel/tags/vga-20180312-pull-request' 
into staging

7cdc61becd vga: fix region calculation

# gpg: Signature made Mon 12 Mar 2018 10:59:24 GMT
# gpg:                using RSA key 4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <address@hidden>"
# gpg:                 aka "Gerd Hoffmann <address@hidden>"
# gpg:                 aka "Gerd Hoffmann (private) <address@hidden>"
# Primary key fingerprint: A032 8CFF B93A 17A7 9901  FE7D 4CB6 D8EE D3E8 7138

* remotes/kraxel/tags/vga-20180312-pull-request:
  vga: fix region calculation

Signed-off-by: Peter Maydell <address@hidden>

Compare: https://github.com/qemu/qemu/compare/6ceb1b51f05f...fb5fff15881b

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