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| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2021-02-22 13:06:43 +0300 |
|---|---|---|
| committer | Maarten Lankhorst <maarten.lankhorst@linux.intel.com> | 2021-03-11 13:11:33 +0300 |
| commit | de066e116306baf3a6a62691ac63cfc0b1dabddb (patch) | |
| tree | 8cc331cca1f0c5337ed7881632d2cd898764cdbb /include | |
| parent | 64e194e278673bceb68fb2dde7dbc3d812bfceb3 (diff) | |
| download | linux-de066e116306baf3a6a62691ac63cfc0b1dabddb.tar.xz | |
drm/compat: Clear bounce structures
Some of them have gaps, or fields we don't clear. Native ioctl code
does full copies plus zero-extends on size mismatch, so nothing can
leak. But compat is more hand-rolled so need to be careful.
None of these matter for performance, so just memset.
Also I didn't fix up the CONFIG_DRM_LEGACY or CONFIG_DRM_AGP ioctl, those
are security holes anyway.
Acked-by: Maxime Ripard <mripard@kernel.org>
Reported-by: syzbot+620cf21140fc7e772a5d@syzkaller.appspotmail.com # vblank ioctl
Cc: syzbot+620cf21140fc7e772a5d@syzkaller.appspotmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210222100643.400935-1-daniel.vetter@ffwll.ch
(cherry picked from commit e926c474ebee404441c838d18224cd6f246a71b7)
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions