| commit | 4299b90e9ba9ce5ca9024572804ba751aa1a7e70 | |
| author | Prasad J Pandit <pjp@fedoraproject.org> | |
| Tue, 18 Oct 2016 07:45:17 +0000 (18 13:15 +0530) | ||
| committer | Gerd Hoffmann <kraxel@redhat.com> | |
| Mon, 5 Dec 2016 10:01:55 +0000 (5 11:01 +0100) | ||
| tree | 1ccd2cdab99576b791e53ad97f20a8cc9ae94984 | treesnapshot (tar.gz zip) |
| parent | 2d1cd6c7a91a4beb99a0c3a21be529222a708545 | commitdiff |
display: cirrus: check vga bits per pixel(bpp) value
In Cirrus CLGD 54xx VGA Emulator, if cirrus graphics mode is VGA,
'cirrus_get_bpp' returns zero(0), which could lead to a divide
by zero error in while copying pixel data. The same could occur
via blit pitch values. Add check to avoid it.
Reported-by: Huawei PSIRT <psirt@huawei.com>
Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
Message-id: 1476776717-24807-1-git-send-email-ppandit@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
In Cirrus CLGD 54xx VGA Emulator, if cirrus graphics mode is VGA,
'cirrus_get_bpp' returns zero(0), which could lead to a divide
by zero error in while copying pixel data. The same could occur
via blit pitch values. Add check to avoid it.
Reported-by: Huawei PSIRT <psirt@huawei.com>
Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
Message-id: 1476776717-24807-1-git-send-email-ppandit@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
| hw/display/cirrus_vga.c | diffblobblamehistory |