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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2014-07-07 10:32:34 +1000 |
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| committer | Gerd Hoffmann <kraxel@redhat.com> | 2014-07-11 10:17:02 +0200 |
| commit | d16136d22af0fcf0d651de04c9e3cbc7137cc6f9 (patch) | |
| tree | b667e257de01f24e77031f64ca21f5c31b414bd5 /scripts/vmstate-static-checker.py | |
| parent | e8ee4b68bed36471b014c23209299c84b8d4a01b (diff) | |
| download | focaccia-qemu-d16136d22af0fcf0d651de04c9e3cbc7137cc6f9.tar.gz focaccia-qemu-d16136d22af0fcf0d651de04c9e3cbc7137cc6f9.zip | |
cirrus: Fix host CPU blits
Commit b2eb849d4b1fdb6f35d5c46958c7f703cf64cfef "CVE-2007-1320 - Cirrus LGD-54XX "bitblt" heap overflow" broke cpu to video blits. When the ROP function is called from cirrus_bitblt_cputovideo_next(), we pass 0 for the pitch but only operate on one line at a time. The added test was tripping because after the initial substraction, the pitch becomes negative. Make the test only trip when the height is larger than one (ie. the pitch is actually used). This fixes HW cursor support in Windows NT4.0 (which otherwise was a white rectangle) and general display of icons in that OS when using 8bpp mode. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'scripts/vmstate-static-checker.py')
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