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drm/qxl: use kmalloc_array to alloc reloc_info in qxl_process_single_command
authorGerd Hoffmann <kraxel@redhat.com>
Tue, 16 Feb 2016 13:25:00 +0000 (14:25 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 3 Mar 2016 23:07:23 +0000 (15:07 -0800)
commitb78bd121b4978a8378c8300e0fb2e12c88a05a85
tree22e112ca01a73d7ec4d05eb9db5eb34b50a97493tree | snapshot
parent0f44b766c9b773b43e073259933f78d505badcc1commit | diff
drm/qxl: use kmalloc_array to alloc reloc_info in qxl_process_single_command

commit 34855706c30d52b0a744da44348b5d1cc39fbe51 upstream.

This avoids integer overflows on 32bit machines when calculating
reloc_info size, as reported by Alan Cox.

Cc: gnomes@lxorguk.ukuu.org.uk
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/gpu/drm/qxl/qxl_ioctl.c diff | blob | history
Linux kernel for KaRo TX COM modules