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=1792586079; b=T+9OUkz5WK+YH0su81YA2koFYEykHA/6NyAQThg2v15NpveVdFzdEpNCiahc6BbdDLKk Gv/6frXUWKAHkVxPLRSrD4Gz2b6GOG3SzGXGJbx3EMsH2uL5AtlqO/Svkr8QEDCHO0wxw khYqprIlCE+FzBsu8Pn8ByNPGsgb7cfc/M9yuiL+6YifcRFO5aeV/WTh/WNJCNXStz5mY 934OvdAZyPgBbEui48l7109ZO0qzAb6C+WzIkKbUn32cKdK5zcVviaokZqAudDht1bZbH wMagDtm3OxW6UYyXv0ToLBimHIkA+mhud89IXDDwHpRcu+aI+pSNjDXsRzgB9kt74ZQ== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1792586079; h=Received:DKIM-Signature:From:To:Cc:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:MIME-Version:Content-Transfer-Encoding; bh=AOokD75NStN9kCpnuKmAghytal5d5dXGuM0291HkWnU=; b=N7mzKuS3o8Nsy3FRl2JWWCoYksMobc6jyvBt9Z65NYWlibSOH4gzYyARDFivYRUeaS0y yZLsmUZ4xAKx3Uc1SD/sfj2hQdbN418UPHgvS4mEJ+qmupfLEzIqWqph/ze+OjvWJPSuO 0PfAQeWQP8RVJMUZaAmQmYHC1GxNBKio2To4rX/bPUBVLTKuH+L0oK29TI65ZRwqcjubp 5vuXqz2jF96k9JWiiESV1IJ2DF0YgJsY4u19Oc9TndrHViRclHpntQf2FVSGLKyBDi1ca Hxx+aKB/DQgPzYKohSEezOtpa6zg/bOZgw6+AYZk64uecLlRrZXAwK8tR7iHu1UE3OA== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=Bu2UGaRn; 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 5CAB6606A339; Wed, 21 Oct 2026 12:34:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=Bu2UGaRn Received: by smtp.kernel.org (Postfix) with ESMTPSA id BAD641F000C4; Wed, 21 Oct 2026 12:34:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1792586079; bh=AOokD75NStN9kCpnuKmAghytal5d5dXGuM0291HkWnU=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=Bu2UGaRn1ANoiXctkb2RkByTc6YBQxufy4jBtlDEW0c/W6z98duMyBQHS6dRQc7hZ TL2uNwnZSKBPuVfZX+TJwx8GfWsrU8FgzByZ7bncwp2HrQ/D//OAVrm9WY13pVEgW0 hS7ahF+dpq7dDtY3fZs2HHmij5kG2/W/PUU1+hDwpTTi/kteVdZc8cka1Sp2qIK41S SIPPBvsRr3fQJhR+G+vVyoFckQCVbfby+027d/5pefmWAPoLVmY4bELFgMuvPsuqMP 9RfwEnYgNnggOAY4L8FRSJp9xj0K0JOZZgsz4cb0iaHm3IFNqR+1X7dWhab7yiwWwc LBklmbWDUrlMw== From: Lee Jones To: lee@kernel.org, Pavel Machek , Nikita Travkin , linux-leds@vger.kernel.org, linux-kernel@vger.kernel.org Cc: stable@vger.kernel.org Subject: [PATCH 04/21] leds: aw2013: Guard LED array index in aw2013_probe_dt() Date: Wed, 21 Oct 2026 12:32:13 +0000 Message-ID: <20261021123406.3163547-5-lee@kernel.org> X-Mailer: git-send-email 2.56.0.218.g1ec904b173-goog In-Reply-To: <20261021123406.3163547-1-lee@kernel.org> References: <20261021123406.3163547-1-lee@kernel.org> 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-Transfer-Encoding: 8bit aw2013_probe_dt() validates the initial child node count against AW2013_MAX_LEDS via of_get_available_child_count() before iterating over available child nodes with for_each_available_child_of_node_scoped(). Add an explicit bounds check on the loop index before indexing into chip->leds[] to ensure the statically sized array cannot be overrun if additional child nodes become available during iteration. Fixes: 59ea3c9faf32 ("leds: add aw2013 driver") Closes: https://sashiko.dev/#/bug/linux-577a1fa0-4e80-42cc-8c7f-34c43c131d95 Cc: stable@vger.kernel.org Signed-off-by: Lee Jones --- drivers/leds/leds-aw2013.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/leds/leds-aw2013.c b/drivers/leds/leds-aw2013.c index 216755d6010f..dfeac8b2993f 100644 --- a/drivers/leds/leds-aw2013.c +++ b/drivers/leds/leds-aw2013.c @@ -286,6 +286,9 @@ static int aw2013_probe_dt(struct aw2013 *chip) continue; } + if (i >= AW2013_MAX_LEDS) + return -EINVAL; + led = &chip->leds[i]; led->num = source; led->chip = chip; -- 2.56.0.218.g1ec904b173-goog