From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=148.251.105.195 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793448845; b=XClB34K/ML0y7MCugJvHx3qPNAbkAqOGHzSONLk8yWxwnJVz/vwf5SD6L0RZuxRAcNVC oEkgTTmSyzMvQ0rFM/RhQWIIyOqnjPoSLfehillGBc75v2eiyWDHck9VVfYvP82BKbRVf nluflsKgvJSavLnwzsUIrdgswvopHu/i1u+dtocepEYRUMcZWIJwig9NlqpCKPtOolgu1 F6kpQSzaV0I7oaVb/I0JS3ZQ8NTyJu/tK9VHA8l2ZsLaD8EK/3tbxoaBbjRloN7m66iEb 8Nxy4CWM/uxZjHNUfh4huuOF8TtJmhObhHjbn+YOFzQI78K1hVs6AwWBzppqIEq9jjA== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793448845; h=DMARC-Filter:DKIM-Signature:Received:Date:From:To:Cc:Subject: Message-ID:References:MIME-Version:Content-Type:Content-Disposition: In-Reply-To; bh=Q2uC7VxcfBZ583/qG7PLxMNvcI1B7rlvF3r1oodUFFk=; b=qzCe0P9raUrUeKpBiwvuHf+mOTYbOkNdsEj0WkpztAuYv6S4fTK1dZ11IYIDuzdZIbyK vC0QLH7xXLrjdLQs15T5PJNGLzGsnixWqzAH0odQQ854NfabO0S0LLgffyQLZDE/mnwEj /w80laxNXdqHpTpCOjZYPSrveGIyHH9HWu7zPUAwL+1zDVEcqpZpGdyqgX/c0zbhqMuiH 6w9WGUXrj9ZsOyNaJCZdBmn9gkcZVmwmMeaEuCd1iIlE8U3hqzBdA3x3EmhZh/FIqsQrY Hxc0ETevUpc+iAQGzKHOjyRCX8CdU1ILUvBwcmoqzPurNMojRWinxOPchxi+Itp9Ggg== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass header.d=collabora.com header.i=@collabora.com header.a=rsa-sha256 header.s=mail header.b=bPAabyAA; arc=none smtp.remote-ip=148.251.105.195 Received: from bali.collaboradmins.com (bali.collaboradmins.com [148.251.105.195]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 05256606A31C; Sat, 31 Oct 2026 12:14:04 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 05256606A31C 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, unprotected) header.d=collabora.com header.i=@collabora.com header.a=rsa-sha256 header.s=mail header.b=bPAabyAA DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1793448843; bh=Q2uC7VxcfBZ583/qG7PLxMNvcI1B7rlvF3r1oodUFFk=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=bPAabyAAkYVJc0OHlHOf96fQEKTPsF/k+f6DmRmjU+of+l0GjROMlTl/WrMVHqgTC Wn9K9L/Lw4JH03Blb9D6fP6VfLvERniVOUBSD2YSC2NnPQDEbP4LHGq0t8f+hV1pvx Pr0+/WBgn29/13s6h12ZN8ShcoNifuxm3dCa0e0KaQlL7A4SWpA5XQK/2wvmL/IJDj GjNpuWgy3x+Og9wtNCXnZK1AQB0yquuGI+nbTqfmGqbVxG6xFih8uJ+B7G6HfsSgVY fazWJ4fi5WdF+lCJNOB3WjTW3ajBjbMUVVyyjMNviEpMtqFpsdXGfZvex5qH2G87+L utxrXJZukbgTQ== Received: from localhost (unknown [100.64.0.241]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange secp256r1 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: cristicc) by bali.collaboradmins.com (Postfix) with ESMTPSA id CEC0417E07EC; Sat, 31 Oct 2026 13:14:02 +0100 (CET) Date: Sat, 31 Oct 2026 14:13:52 +0200 From: Cristian Ciocaltea To: Guangshuo Li Cc: Lee Jones , stable@vger.kernel.org, Manivannan Sadhasivam , Cristian Ciocaltea , linux-actions@lists.infradead.org, mfd@lists.linux.dev, linux-kernel@vger.kernel.org Subject: Re: [PATCH 2/6] mfd: atc260x: Fix potential use-after-free on probe failure Message-ID: References: <344536111bef51c4ee95740e2e17af26ca26929e.1793377422.git.liguangshuo@mail.sdu.edu.cn> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <344536111bef51c4ee95740e2e17af26ca26929e.1793377422.git.liguangshuo@mail.sdu.edu.cn> On 2026/10/31, Guangshuo Li wrote: > The IRQ chip is device-managed, but the child registration failure path > also deletes it explicitly. Subsequent devres cleanup can then access > the freed IRQ-chip data. Let devres perform the IRQ-chip teardown. > > This issue was found by our static analysis tool under development. > > Fixes: f7cb7fe34db9 ("mfd: Add MFD driver for ATC260x PMICs") > Cc: stable@vger.kernel.org > Assisted-by: OpenAI:gpt-6-astra > Signed-off-by: Guangshuo Li Reviewed-by: Cristian Ciocaltea