From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 5D10F3FA8E8; Sat, 28 Feb 2026 17:43:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772300583; cv=none; b=FtPtUdsT8C6i4PJUXy+y5Gtmyi3oAXwaMjLgMqvbIyDSTW2HmX2FW/jbltBFljDO5CstU2bMn5HhDZh8/WFki5kFR1NNTXEAYRL32/83Mwq6UN+xInABIkMGaCEWUHC7oBHd4z3E1GuC3poMB9zIVEFdGC/SU2kv2aU+dbLyYrI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772300583; c=relaxed/simple; bh=eMPU9koIKEZixE4sZuG8N2+QdGfAisHOg9zLI83Mqto=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=pvTDso2iWemzOllIQKutmyoJD6zLRp6Ilt0CzA2Ul5C89Amzw/NXhrnbQJ9u74Yl6oXrK4CrdGqPJbQY4rW+mqf2cQzMHFaq/6h066Bx3uZAUCcdgE5JyvvHS4hHvLjC/WKmW6fJ4q3dCdpRiAlP/Oat6Vb7VLDTpJnK/MT+I4M= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=EBpdKgbq; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="EBpdKgbq" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 937BBC19423; Sat, 28 Feb 2026 17:43:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772300583; bh=eMPU9koIKEZixE4sZuG8N2+QdGfAisHOg9zLI83Mqto=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=EBpdKgbqrd9bhiPPseYt00alemR92mWHeZZWlM6uFrTCRdRYTZl3JLgscjQKcmLuG nL2K4TVw5Y2P5RPyU+hVdd43ca9G35zHytkIb4XH2QTB+SSDjeLrZ5G9tlkgRScskK AV4bJPUd3hZODJ97/whLhe9a77UW0FigN3WbuLvQnOhAyfzDxyS4oNs6IgwWuqeby0 LSE7AG7Aa42pXwrQT30sfZjkhifAMio0MlFh0wLv0FAlskpZRNSz+zURpzppvNXNYs B/FbJMMo6fjpmj3TwzYGDEm0yhDW6MRZhYI9FcCJVSzL6Ei7qo2KvzbzD/P9Uj0Oxq 61DgJSAgW7bwQ== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Bartosz Golaszewski , Krzysztof Kozlowski , Philipp Zabel , Sasha Levin Subject: [PATCH 6.19 624/844] reset: gpio: suppress bind attributes in sysfs Date: Sat, 28 Feb 2026 12:28:57 -0500 Message-ID: <20260228173244.1509663-625-sashal@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260228173244.1509663-1-sashal@kernel.org> References: <20260228173244.1509663-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit From: Bartosz Golaszewski [ Upstream commit 16de4c6a8fe9ff497ca1aba33ef0dbee09f11952 ] This is a special device that's created dynamically and is supposed to stay in memory forever. We also currently don't have a devlink between it and the actual reset consumer. Suppress sysfs bind attributes so that user-space can't unbind the device because - as of now - it will cause a use-after-free splat from any user that puts the reset control handle. Fixes: cee544a40e44 ("reset: gpio: Add GPIO-based reset controller") Cc: stable@vger.kernel.org Signed-off-by: Bartosz Golaszewski Reviewed-by: Krzysztof Kozlowski Signed-off-by: Philipp Zabel Signed-off-by: Sasha Levin --- drivers/reset/reset-gpio.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/reset/reset-gpio.c b/drivers/reset/reset-gpio.c index e5512b3b596b5..626c4c639c155 100644 --- a/drivers/reset/reset-gpio.c +++ b/drivers/reset/reset-gpio.c @@ -111,6 +111,7 @@ static struct auxiliary_driver reset_gpio_driver = { .id_table = reset_gpio_ids, .driver = { .name = "reset-gpio", + .suppress_bind_attrs = true, }, }; module_auxiliary_driver(reset_gpio_driver); -- 2.51.0