From nobody Sun Feb 8 02:56:10 2026 Received: from bali.collaboradmins.com (bali.collaboradmins.com [148.251.105.195]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 40634199D8; Wed, 14 Jan 2026 09:07:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.251.105.195 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768381638; cv=none; b=CL+4BF8cZ77yk1zv8S1gv+7VmHGneifNBcFtro04d/yaNVK6WbR9SiNvUp4oJpZw0/Q/G8Mf05uMePeuiNJITVuF4C76BHJC15HE2h9GtUNo+PhHqPKO6Hwg8Ald5CImFf9jaoMWU+cZTN1qp02MFmvovoRJfDF4wbubCmaY5QA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768381638; c=relaxed/simple; bh=j119wK6B4A0ysyL4xbjSO7vHKZL3ZlEVWLrbyVa9FPg=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=HFg2ErtoeO67n1Pe+skiV3REAI+bMc7h2Tn+lRnnijLSVzSiybK/6PFHhD+nqywiglyS4BxF2NEj1GWjoc6siuySh5334AzjkelCC85y++Ir1E4Avx43Apx2D+qqH0zdOwHRg0EutO1aRk7n4ErVG9hWZNydAQqJw/bjhbFBHU8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=CU66B5Ue; arc=none smtp.client-ip=148.251.105.195 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="CU66B5Ue" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1768381635; bh=j119wK6B4A0ysyL4xbjSO7vHKZL3ZlEVWLrbyVa9FPg=; h=From:To:Cc:Subject:Date:From; b=CU66B5UepWe+HPoa9c+V7/8zP0ArJSABZQ5thZD/8sIH3pKn1uJhRsU0cCIn3wbdu jjLhZCwBKAPs/6//wE7L02ekcY1/3eRr5Swg5hq6WqHPloDUVPkPaoCFDGknBepPlA da9WY7k71yxtVsAfcC6BO3/6yT4wtzGxjbYXQ41gbvBM+QFFjJtbMPDvJ3XmqRY/Hj r4xTQeEXIXLiB9hDKNW0zBsy7lYsau1hU6E75BYaUE0vYTLUD27hdUjQHYnNNv7CD2 E6vyDHZWy1bFwgeYwD0QH4HlQBOfFZOexxuvCr+SbmJOKvfZgKorQRy+yhk8Nr2ZtP vBHkMpK+C02dg== Received: from benjamin-XPS-13-9310.. (unknown [IPv6:2a01:e0a:120:3210:1dad:60e8:7174:bd20]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: benjamin.gaignard) by bali.collaboradmins.com (Postfix) with ESMTPSA id 32F2917E13C3; Wed, 14 Jan 2026 10:07:15 +0100 (CET) From: Benjamin Gaignard To: nicolas.dufresne@collabora.com, p.zabel@pengutronix.de, mchehab@kernel.org, heiko@sntech.de, hverkuil@kernel.org Cc: linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, kernel@collabora.com, Benjamin Gaignard Subject: [PATCH] media: verisilicon: AV1: Fix tile info buffer size Date: Wed, 14 Jan 2026 10:07:10 +0100 Message-ID: <20260114090710.71473-1-benjamin.gaignard@collabora.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Each tile info is composed of: row_sb, col_sb, start_pos and end_pos (4 bytes each). So the total required memory is AV1_MAX_TILES * 16 bytes. Use the correct #define to allocate the buffer and avoid writing tile info in non-allocated memory. Signed-off-by: Benjamin Gaignard Fixes: 727a400686a2c ("media: verisilicon: Add Rockchip AV1 decoder") Reviewed-by: Nicolas Dufresne --- .../media/platform/verisilicon/rockchip_vpu981_hw_av1_dec.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/media/platform/verisilicon/rockchip_vpu981_hw_av1_dec.= c b/drivers/media/platform/verisilicon/rockchip_vpu981_hw_av1_dec.c index e4703bb6be7c..af854b149f35 100644 --- a/drivers/media/platform/verisilicon/rockchip_vpu981_hw_av1_dec.c +++ b/drivers/media/platform/verisilicon/rockchip_vpu981_hw_av1_dec.c @@ -373,12 +373,12 @@ int rockchip_vpu981_av1_dec_init(struct hantro_ctx *c= tx) return -ENOMEM; av1_dec->global_model.size =3D GLOBAL_MODEL_SIZE; =20 - av1_dec->tile_info.cpu =3D dma_alloc_coherent(vpu->dev, AV1_MAX_TILES, + av1_dec->tile_info.cpu =3D dma_alloc_coherent(vpu->dev, AV1_TILE_INFO_SIZ= E, &av1_dec->tile_info.dma, GFP_KERNEL); if (!av1_dec->tile_info.cpu) return -ENOMEM; - av1_dec->tile_info.size =3D AV1_MAX_TILES; + av1_dec->tile_info.size =3D AV1_TILE_INFO_SIZE; =20 av1_dec->film_grain.cpu =3D dma_alloc_coherent(vpu->dev, ALIGN(sizeof(struct rockchip_av1_film_grain), 2048), --=20 2.43.0