From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794064190; b=jRUYAjowTNX0JtzsHpBavz8aHRSuroiIx3rPiJXztERdtRtSZNyJGV7+RdfBxFm14Yta tCFj5l4Svo1JKyQqfhjVBpsLwRSWaEZV++5uotCJwFiXaxzrjgLLlF8xA3vmGXl70ijjM Qrp1+HEJGWAqQBZFLLEglBoYQbSQViDrJ9EHUUSewck9M3sznxT/77QCt0gt2pK8qtSyl ww7E4OD/HKVcaUhbd/xpjkpp2UJB26b3Dr3UbmsVSfNRQJUKl8NpGkj6b6luyNs9jh3E0 bV8IfnksybJAUQgYz+iwQo7kcu9Wg98zLK4Y2M/TzkQN1TBIy70aL9xKLS27pNmJp5A== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794064190; h=Received:DKIM-Signature:From:To:Cc:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:User-Agent:X-stable:X-Patchwork-Hint: MIME-Version:Content-Transfer-Encoding; bh=bcOqYsa3LuMZY/GKXCzePtgO31NEaYl2OWYrQ+9pi/g=; b=md9DIssFLqNZCe/u3Xr6wqY9S0G4oP+PGBtS1rEVrY+VO8Gbep7lOsNKb2SALGcDmGP/ Nxi4y20lA+DdR+1jLm5RFKX9LZLBHP8FNxbfJi12fTzudsIrtNAhP+9MeA5lls+oPQrD/ sLtpxkIz82Os0p31A28DPCHXBMfVzM0jNqqRkeh8Z1I9ONobOQot46p4z1frK/GV4Ws5c lujsN4G6gSBf5I85kPLjWdytvUtyS/FrN/uWXL/X/m2DTwuQna0mmDIU01byZ47qyvc9h SqIwZPcD1WemeOfJ+BBG9emBPWn/ompN6v01z/jlo1/dnhWsW1Uqi5i8i/TmX4Xixfw== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=DOp5TQpO; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2F5ED606E8EF; Sat, 7 Nov 2026 15:09:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=DOp5TQpO Received: by smtp.kernel.org (Postfix) with ESMTPSA id D1C3F1F0089F; Sat, 7 Nov 2026 15:09:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1794064190; bh=bcOqYsa3LuMZY/GKXCzePtgO31NEaYl2OWYrQ+9pi/g=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=DOp5TQpOXSvS74NJvHIKORaHMc0BvRNXjkXwpJw/eG2Bpi5/gQgpTBW6rZLh4ezkW 2tOyMKqr/v+DfDOq6dV5r7EwyzbHnmGhhzx+5V1l43qkPH+KhBfhsN6o2LohsFdevH MicnJWwbZKlgJgSwMYf/dhTVkNbeSTDB/PMTSEYo= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Jiale Yao , Jonathan Cameron , Sasha Levin Subject: [PATCH 7.3 0331/1257] iio: dac: ad5755: validate SPI match data Date: Sat, 7 Nov 2026 08:43:47 -0500 Message-ID: <20261107134948.560102457@linuxfoundation.org> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261107134939.434104957@linuxfoundation.org> References: <20261107134939.434104957@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore X-Mailing-List: stable@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 7.3-stable review patch. If anyone has any objections, please let me know. ------------------ From: Jiale Yao [ Upstream commit 85e2c8ca7ac9e39a61e7fb18728918f6e966f439 ] A device bound through driver_override need not match an entry in the driver tables. In that case spi_get_device_match_data() returns NULL, but ad5755_probe() stores and later dereferences the result. Validate the match data before it is used. Fixes: 62d3fb9dcc09 ("iio: dac: ad5755: make use of of_device_id table") Signed-off-by: Jiale Yao Cc: stable@vger.kernel.org Signed-off-by: Jonathan Cameron Signed-off-by: Sasha Levin --- drivers/iio/dac/ad5755.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/iio/dac/ad5755.c b/drivers/iio/dac/ad5755.c index 0828b99090990..730289dd8ef69 100644 --- a/drivers/iio/dac/ad5755.c +++ b/drivers/iio/dac/ad5755.c @@ -819,6 +819,9 @@ static int ad5755_probe(struct spi_device *spi) spi_set_drvdata(spi, indio_dev); st->chip_info = spi_get_device_match_data(spi); + if (!st->chip_info) + return -ENODATA; + st->spi = spi; st->pwr_down = 0xf; -- 2.53.0