From: Javier Martinez Canillas <javierm@redhat.com>
To: Geert Uytterhoeven <geert@linux-m68k.org>,
Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
Maxime Ripard <mripard@kernel.org>,
Thomas Zimmermann <tzimmermann@suse.de>,
David Airlie <airlied@gmail.com>, Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
Geert Uytterhoeven <geert@linux-m68k.org>
Subject: Re: [PATCH/RFC 3/8] drm/ssd130x: Bail out early if data_array is not yet available
Date: Fri, 14 Jul 2023 11:53:06 +0200 [thread overview]
Message-ID: <87lefiu8e5.fsf@minerva.mail-host-address-is-not-set> (raw)
In-Reply-To: <c1030f3a445ee130c6a582fe10431c90018278e5.1689252746.git.geert@linux-m68k.org>
Geert Uytterhoeven <geert@linux-m68k.org> writes:
> Calling ssd130x_buf_alloc() from ssd130x_encoder_helper_atomic_enable()
> is too late, causing a NULL pointer dereference:
>
> ssd130x_update_rect.isra.0+0x13c/0x340
> ssd130x_primary_plane_helper_atomic_update+0x26c/0x284
> drm_atomic_helper_commit_planes+0xfc/0x27c
>
> Work around that by checking if data_array is valid.
>
> Obviously this needs a better fix...
>
This should be fixed by [0] so we can drop this patch from the set.
[0]: https://lists.freedesktop.org/archives/dri-devel/2023-July/413630.html
--
Best regards,
Javier Martinez Canillas
Core Platforms
Red Hat
next prev parent reply other threads:[~2023-07-14 9:53 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-13 13:17 [PATCH 0/8] drm: fb-helper/ssd130x: Add support for DRM_FORMAT_R1 Geert Uytterhoeven
2023-07-13 13:17 ` [PATCH 1/8] drm/ssd130x: Fix pitch calculation in ssd130x_fb_blit_rect() Geert Uytterhoeven
2023-07-14 9:34 ` Javier Martinez Canillas
2023-07-14 9:41 ` Geert Uytterhoeven
2023-07-14 9:48 ` Javier Martinez Canillas
2023-07-21 22:39 ` Javier Martinez Canillas
2023-07-13 13:17 ` [PATCH 2/8] drm/dumb-buffers: Fix drm_mode_create_dumb() for bpp < 8 Geert Uytterhoeven
2023-07-14 9:50 ` Javier Martinez Canillas
2023-07-13 13:17 ` [PATCH/RFC 3/8] drm/ssd130x: Bail out early if data_array is not yet available Geert Uytterhoeven
2023-07-14 9:53 ` Javier Martinez Canillas [this message]
2023-07-13 13:17 ` [PATCH 4/8] drm/ssd130x: Add support for DRM_FORMAT_R1 Geert Uytterhoeven
2023-07-14 10:14 ` Javier Martinez Canillas
2023-07-14 11:26 ` Geert Uytterhoeven
2023-07-14 12:35 ` Javier Martinez Canillas
2023-07-14 12:43 ` Geert Uytterhoeven
2023-07-14 13:08 ` Javier Martinez Canillas
2023-07-13 13:17 ` [PATCH 5/8] drm/client: Convert drm_mode_create_dumb() to drm_mode_addfb2() Geert Uytterhoeven
2023-07-14 10:16 ` Javier Martinez Canillas
2023-07-14 11:01 ` Simon Ser
2023-07-14 11:29 ` Geert Uytterhoeven
2023-07-13 13:17 ` [PATCH 6/8] drm/fb-helper: Pass buffer format via drm_fb_helper_surface_size Geert Uytterhoeven
2023-07-14 10:25 ` Javier Martinez Canillas
2023-07-14 11:32 ` Geert Uytterhoeven
2023-07-13 13:17 ` [PATCH 7/8] drm/fb-helper: Add support for DRM_FORMAT_R1 Geert Uytterhoeven
2023-07-14 10:31 ` Javier Martinez Canillas
2023-07-13 13:17 ` [PATCH 8/8] drm/ssd130x: Switch preferred_bpp/depth to 1 Geert Uytterhoeven
2023-07-14 10:32 ` Javier Martinez Canillas
2023-07-16 13:30 ` [PATCH 0/8] drm: fb-helper/ssd130x: Add support for DRM_FORMAT_R1 Javier Martinez Canillas
2023-07-17 8:07 ` Geert Uytterhoeven
2023-07-17 9:13 ` Javier Martinez Canillas
2023-07-17 9:19 ` Geert Uytterhoeven
2023-07-17 9:33 ` Javier Martinez Canillas
2023-07-17 10:03 ` Geert Uytterhoeven
2023-07-17 10:11 ` Javier Martinez Canillas
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