From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 1D1703749EB; Thu, 13 Aug 2026 13:45:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786628710; cv=none; b=Px488WTsjwJzoUCWF7GO/6RAXhz4y1CQ8FvFQbks6k5ajesTqV+hF0WrVrZyaBtVxYLrMDvpiT9izAFjkgWIjUIs9MEhjPKf97ZRheeLjtKOR3XTEbf2hsIp6ONVBZ4vtvvhjHZCr4AqUkFjhtjbN82Kr5HuijprvHsW77hLdPk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786628710; c=relaxed/simple; bh=uqnEnOPWkIJui7qzcmARHhau5SfBP6TbZwsJTfXtR84=; h=Message-ID:Date:From:To:Subject:In-Reply-To:References:Cc; b=tve3tXdrCVkucZhH5kUJoqDgJVJ950RT2zoTXHA4FZhO46bVKHBzS2WJ4jP5+KGiHFVWg3XF1aw6IqmF1xU+TYqc1D8iFp/vfS364RqPY7P7BA8j9h+9liSq6Dg9/1fCMcEb4e52DX/bNrIo7xhXoJAZw9l1unrhW4b3mr6c7y4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=K3Df+Rbx; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="K3Df+Rbx" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1A92E1F000E9; Thu, 13 Aug 2026 13:45:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1786628707; bh=1cPfZ/bD6Z97U49M2447wQA3NGD5B4htgMrzWxyPoww=; h=Date:From:To:Subject:In-Reply-To:References:Cc; b=K3Df+RbxgUm4SC4zm2ucVvCWGJb4vf72uz1aaayTkRQLpcuRSaIxkrfB1HWAWHg9O KXPhhHayTkqgGtzOC+gz6MRLRF28zAbJpu5N+voo0Gc2inVoIxiE73icOIDPVNDWSH BigmAUhsF6ptF2TXs5v06LgwMI2rntR79vwvugIgCkUilf6eDVr5ulWnaP+lSjQOC7 SO7lIlNqXmsy2O4mempnYH9iSC/NZtjrMRvD0s0APhlTd6Akl9OKSup8DvxVxTJlEr dbyccZe+HL4GEekw+YL7JFSybSDyS2NgZ+VDibBSzz/s8alxSz4/lZ7gZ482/hAqtH 7Se2Mw53nZG3A== Message-ID: Date: Thu, 13 Aug 2026 13:45:05 +0000 From: "Maxime Ripard" To: "Cristian Ciocaltea" Subject: Re: [PATCH v10 02/69] drm/connector: hdmi: Handle reset() state allocation failure In-Reply-To: <20260731-dw-hdmi-qp-scramb-v10-2-294364b2cf15@collabora.com> References: <20260731-dw-hdmi-qp-scramb-v10-2-294364b2cf15@collabora.com> Cc: dri-devel@lists.freedesktop.org, kernel@collabora.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-sunxi@lists.linux.dev, "Algea Cao" , "Andrzej Hajda" , "Andy Yan" , "Chen-Yu Tsai" , "Daniel Stone" , "Dave Stevenson" , "David Airlie" , =?utf-8?b?SGVpa28gU3TDvGJuZXI=?= , "Jernej Skrabec" , "Jonas Karlman" , "Laurent Pinchart" , "Liu Ying" , "Luca Ceresoli" , "Maarten Lankhorst" , "Maxime Ripard" , =?utf-8?b?TWHDrXJhIENhbmFs?= , "Neil Armstrong" , "Phong LE" , "Raspberry Pi Kernel Maintenance" , "Robert Foss" , "Samuel Holland" , "Sandy Huang" , Sashiko , "Simona Vetter" , "Thomas Zimmermann" Content-Transfer-Encoding: 7bit Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: On Fri, 31 Jul 2026 19:19:09 +0300, Cristian Ciocaltea wrote: > In drmm_connector_hdmi_init(), if the reset callback fails to allocate > memory, e.g. inside drm_atomic_helper_connector_reset(), > connector->state will remain NULL. This is unconditionally passed to > drm_connector_attach_max_bpc_property(), leading to a NULL pointer > dereference. > > [ ... ] Reviewed-by: Maxime Ripard Thanks! Maxime