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=1794061490; b=iaep7MyXqG3CWLZ19064E+q+3DCroDGie9cBX5vk7N5mWpCoPjZKKho4RHqVc7kbrvd+ 0k+y7h2kbwyM+ViDw1Uup+TI9pqB9Eevhv0TD7nSPAC6DN7TPa3NoOJIIUs8qNl4HA1Xg ZjYdVIXgAuJJwOUllra+lDFn3lhnNEewJD7Y2R4fx7Okt1OtRs+9Enb1jtiqQ92xbWD0Y ahrXh17nAfBnt7uGCrxfvdEE3J8Gw9Eo88OK5eHIoS6amgrSZBk3gOrN8g/q7OWy5RvxW huiWykgxZE8yIvelgzAT8/nJnT8OH8AAn4pDttEcVaQLWLqWi9jby7r4cLr3iCGK73w== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794061490; 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=UO3KrmNKDGrb4sZJW52LhnERidYiaVV2TjTpq32N9Wo=; b=agUk9vlUybtwW4HVF8QiDhCDaI2f45iz0FDRjexK6JmU7QfrsejPLwkKQWfzSymX1bMN sid/6v1oF0dc4vAekM94E6BaqSIvP2YqUAhBIdJOuGQiZAG4nJN3XYaPVDIVbnqwt9dhN VrqTY2oyh5zndgYjsJZ+eHQ4mDERpJQi6c0BZnQ5WvQ9JOJOwrJ6psJWbdx0QYhZTQZ4x sRJU9zYihNM2/7flsE1/Gag/qkLhumf/IedktWB/gxYG6vs6+b07eH+OMwW2auSnVbUhl oIdCOiI9w8dEkUNiPaiuj5gxyxolaeZqrYvqURj6lD373DVnCaxdLM1BAf6Xmm5nq1Q== 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=RPccEm+j; 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 178B8606A326; Sat, 7 Nov 2026 14:24:50 +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=RPccEm+j Received: by smtp.kernel.org (Postfix) with ESMTPSA id B95B71F0089F; Sat, 7 Nov 2026 14:24:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1794061489; bh=UO3KrmNKDGrb4sZJW52LhnERidYiaVV2TjTpq32N9Wo=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=RPccEm+jVLs5D5DR1G0kBqPMj39JccjOAeUwfhqT1a6X/qNGTD0IKcDYMJqKgYpnw hCGKxCi6f6pl3uXUDld2ZOCNXhfQuUlbmpgKU/uB/CnhGMVEq1qryjXfxwruP2DHt7 YraqzEsATt1uWsTSgcZZTSpBfgKTfx24cDmDvYFQ= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, David Heidelberg , "Daniel Thompson (RISCstar)" , Konrad Dybcio , Lee Jones Subject: [PATCH 6.12 0579/1536] backlight: qcom-wled: Fix NULL pointer dereference in wled_remove() Date: Sat, 7 Nov 2026 08:43:15 -0500 Message-ID: <20261107135013.817399799@linuxfoundation.org> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261107134957.653319350@linuxfoundation.org> References: <20261107134957.653319350@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 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: David Heidelberg commit 1dbd46d4b2fb416a8202b1a8e4ef9d0cadbe075f upstream. wled_probe() doesn't set the driver data for the platform device. As a result, platform_get_drvdata() in wled_remove() will return NULL, and the first dereference of it crashes on unbind. Set the platform device driver data in wled_probe(). Cc: stable@vger.kernel.org Fixes: feeab87b3072 ("backlight: qcom-wled: Add support for short circuit handling") Signed-off-by: David Heidelberg Reviewed-by: Daniel Thompson (RISCstar) Reviewed-by: Konrad Dybcio Link: https://patch.msgid.link/20260921-qcom-wled-backlight-v4-1-bab8c7ef73cb@ixit.cz Signed-off-by: Lee Jones Signed-off-by: Greg Kroah-Hartman --- drivers/video/backlight/qcom-wled.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/video/backlight/qcom-wled.c +++ b/drivers/video/backlight/qcom-wled.c @@ -1682,6 +1682,7 @@ static int wled_probe(struct platform_de wled->regmap = regmap; wled->dev = &pdev->dev; + platform_set_drvdata(pdev, wled); wled->version = (uintptr_t)of_device_get_match_data(&pdev->dev); if (!wled->version) {