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 B7DBC33F377; Sat, 28 Feb 2026 17:56:09 +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=1772301369; cv=none; b=iuCU6HGTaoOUlJOKe5mtduoXcDr++Co6XjZsohxfUtYuzXl3VNdl+lK5Pleev4oPBd4sM4vBpBjAFm33xLoOGxOI7CXrLk7HFP9LZWlq4jovPo5YCBK0zKNOE83aDu2ErqrsaXQmNqS8JWTUOrsMVCGZZ8ibIWMvpfBsGHvf0C4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772301369; c=relaxed/simple; bh=O5aNiLJoyiy/UOTviuDS1y3ZaxH8fE5X2bobRckl83s=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=kJJWvWdWOp6TJctJ9kmHpfMdmEmuGaCPSY76xYe/BB1JZa7IeRD925OTBozEHrOLRTH38qcFIg9HhOw0KEf6n+vMHzj7hdjMZ2BcQ7rIwt3JQRKf/ZVnKKyr4bXyfEw91emcXwBBioB+Ye7BAz7Y+xXFT8RrGy55zhgp7Qjuhhw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=fRx+xC0/; 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="fRx+xC0/" Received: by smtp.kernel.org (Postfix) with ESMTPSA id F07C7C19424; Sat, 28 Feb 2026 17:56:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772301369; bh=O5aNiLJoyiy/UOTviuDS1y3ZaxH8fE5X2bobRckl83s=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=fRx+xC0/x7Jm6m7eIlWmT3xacDFutBiZ3E+bFbzvCTmon74QR9URMb1LsdbvbtQ96 5xlBx3+4vuxbGo8oE3HsFdRESn2v5xB/Tu2Ucc4Yvay5IAtU3qpKDEc1+9jn3UySek VgA1l4NJBvsMJBpcMC1GHQObTzwGBFKO1c+8UXeIzUmJZ/TBajhfsFM7OyANAD6cp9 c5BqiLxiAh4Hv2YJ1XDzOPujjbBK9/int3bL6C3cioM0A8KxX1iosFqjbeURUfHo9e amXdpbbBv2SxSCxZQRjarKbPpJKYqiII+r7of/kEVc9dJA+SyX4Xzz1DXz0ivGLpgm VEqqfLuuMWzsQ== From: Sasha Levin To: patches@lists.linux.dev Cc: Bartosz Golaszewski , stable@vger.kernel.org, Krzysztof Kozlowski , Philipp Zabel , Sasha Levin Subject: [PATCH 6.18 558/752] reset: gpio: suppress bind attributes in sysfs Date: Sat, 28 Feb 2026 12:44:29 -0500 Message-ID: <20260228174750.1542406-558-sashal@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260228174750.1542406-1-sashal@kernel.org> References: <20260228174750.1542406-1-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 2290b25b67035..15353ba5758c3 100644 --- a/drivers/reset/reset-gpio.c +++ b/drivers/reset/reset-gpio.c @@ -110,6 +110,7 @@ static struct platform_driver reset_gpio_driver = { .id_table = reset_gpio_ids, .driver = { .name = "reset-gpio", + .suppress_bind_attrs = true, }, }; module_platform_driver(reset_gpio_driver); -- 2.51.0