| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.6 120/203] drm/nouveau: fix for disabled fbdev emulation | Date | Mon, 25 Jul 2016 13:55:35 -0700 |
| |
4.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Dmitrii Tcvetkov <demfloro@demfloro.ru>
commit 52dfcc5ccfbb6697ac3cac7f7ff1e712760e1216 upstream.
Hello,
after this commit:
commit f045f459d925138fe7d6193a8c86406bda7e49da Author: Ben Skeggs <bskeggs@redhat.com> Date: Thu Jun 2 12:23:31 2016 +1000 drm/nouveau/fbcon: fix out-of-bounds memory accesses
kernel started to oops when loading nouveau module when using GTX 780 Ti video adapter. This patch fixes the problem.
Bug report: https://bugzilla.kernel.org/show_bug.cgi?id=120591
Signed-off-by: Dmitrii Tcvetkov <demfloro@demfloro.ru> Suggested-by: Ilia Mirkin <imirkin@alum.mit.edu> Fixes: f045f459d925 ("nouveau_fbcon_init()") Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/gpu/drm/nouveau/nouveau_fbcon.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/gpu/drm/nouveau/nouveau_fbcon.c +++ b/drivers/gpu/drm/nouveau/nouveau_fbcon.c @@ -557,7 +557,8 @@ nouveau_fbcon_init(struct drm_device *de if (ret) goto fini; - fbcon->helper.fbdev->pixmap.buf_align = 4; + if (fbcon->helper.fbdev) + fbcon->helper.fbdev->pixmap.buf_align = 4; return 0; fini:
|