On Fri Oct 9, 2026 at 7:44 PM CEST, Jim Cromie via B4 Relay wrote: > From: Jim Cromie <[email protected]> > > When graphics engine firmware fails to load or initialization aborts > early, nvxx_gr(drm) returns NULL. Calling DRM_IOCTL_NOUVEAU_GET_ZCULL_INFO > causes nouveau_abi16_ioctl_get_zcull_info() to dereference gr at offset > 0xf0 without checking for NULL, triggering a kernel page fault. > > Validate that gr is non-NULL before inspecting gr->has_zcull_info. > > Signed-off-by: Jim Cromie <[email protected]>
Please add a Fixes: tag and CC stable.
