Re: [PATCH 0/3] nouveau: fix 3 null-ptr derefs

From: Lyude Paul

Date: Sat Oct 03 2026 - 19:26:29 EST


Hi, could you please specify what hardware this is, and why exactly you're
booting it without ACR firmware?

I'm not totally against these patches, but these cards really aren't meant to
be run with the ACR firmware these days. You're going to hit pretty regular
issues and bitrot pretty regularly if we don't just figure out why exactly
it's not loading - could you send a dmesg from when your system boots up so we
could take a look?

On Fri, 2026-10-02 at 12:09 -0600, Jim Cromie via B4 Relay wrote:
> These 3 patches fix NULL ptr derefs I hit while booting kernels with
> unrelated work (dynamic-debug) on a 2019 amdgpu+noueau laptop. One of
> them is possibly hard to reproduce, the others are "dependable".
>
> Signed-off-by: Jim Cromie <jim.cromie@xxxxxxxxx>
> ---
> Jim Cromie (3):
> drm/nouveau: Fix NULL pointer dereferences in GETPARAM ioctl
> drm/nouveau: Fix NULL pointer dereference in GET_ZCULL_INFO ioctl
> drm/nouveau/gsp: Fix NULL dereference in nvkm_gsp_gcx_ready()
>
> drivers/gpu/drm/nouveau/nouveau_abi16.c | 27 ++++++++++++++++++-----
> drivers/gpu/drm/nouveau/nvkm/engine/device/user.c | 2 +-
> drivers/gpu/drm/nouveau/nvkm/subdev/gsp/base.c | 2 +-
> 3 files changed, 24 insertions(+), 7 deletions(-)
> ---
> base-commit: 72d3fcf802c45d00b300f25b848a93c3a2bd7c7e
> change-id: 20261002-my-fixups-324d25f3bd05
>
> Best regards,

--
Cheers,
Lyude Paul (she/her)
Senior Software Engineer at Red Hat

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