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=1793214332; b=3vK1m5JQdykGQ0w7guxggSb+oHcOUWETav0q5TZQYylZcQh3iWfV6jsEjrYU+Zv4UiUe 1PUss3p/M5+EC9m8vBtulU8nbhy/I4u5t1ZOspW94gJQXIzT8fVbUsB1p+IJYwKsLet/q ArDfSg32jfjDSEDNkTIYNMREW3+oEjV2Q/dp08kS1qY9N3qSvTNaGEeHxrxBF0X6NE/87 IsRpEIGxfDhu9pS+Fe1HxhQ+8Ir16HM/RxY095Jp4tDc8vqkL8vjW0jXb7ujbbsRF3i6M C8uGrLluwIif2BmE52QoaznaQa6Km9wW8J1+2Dhhe4XkQPH0KMm68cMroUlujpaGjqw== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793214332; 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=aj2S+43sBpVCckiUQUk6tBs/W2EAOkE1szlzbYRjVcA=; b=xCltpBOWLcrTK8euDdipDslRakrTwhJwei8/mICQ8eVvLx34yAWDEZlP2qDHPCTpBtXG FOwNdgE14+TJtuhzgNSNB4PvVnzp5M95hsqhzCAnVywzIwUifHjZy4OlJOcGbRUmmdlZA Bv2SgfI2JA01Ej0OZzRS/z4es+xmsRZUcRInRVR6k+fkniNeY+sU28JbmHaWxHxT53fri bV/Wi1vY3CW1ymZs6viXJAtkBIbqOXBmeZrzMYyU1xAPqTeXeFtLnFkLbcDKcKutl/2Q6 FXkSc2q5FZGWi9PD2DF5Q6hQXxHv5VGj6euTLFTZnfjcna4wuXmF7lUTFyQBO/j2PMw== 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=vC9WC1wp; 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 D9389606A326; Wed, 28 Oct 2026 19:05:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key, unprotected) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=vC9WC1wp Received: by smtp.kernel.org (Postfix) with ESMTPSA id 360801F01825; Wed, 28 Oct 2026 19:05:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1793214331; bh=aj2S+43sBpVCckiUQUk6tBs/W2EAOkE1szlzbYRjVcA=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=vC9WC1wpEmIsQgz7Qkywf3xqwpR92MwtMSONJz8HDujc6Z32qSYuKhztrlSnWVzV0 fmDREm2nb6YrDPx5NRX56PMtXl3wG2P83bln+09U91KIbPzd/1fBXmfkroIDco2Na6 Wb0WWZmWg4OHN46gbBfibOGXNl4daMirPkr9LtsE= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Umio Yasuno , Alex Deucher , Sasha Levin Subject: [PATCH 6.1 0822/1887] drm/amd/pm: fix null pointer access Date: Wed, 28 Oct 2026 17:48:38 +0100 Message-ID: <20261028170518.131139424@linuxfoundation.org> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261028170459.200466217@linuxfoundation.org> References: <20261028170459.200466217@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore X-Mailing-List: patches@lists.linux.dev List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Umio Yasuno [ Upstream commit d524d40e3a6152a3ea1125af729f8cd8ca65efde ] Writing a string without delimiters (' ', '\n', '\0') to the under gpu_od/fan_ctrl sysfs or pp_power_profile_mode for the CUSTOM profile will result in a null pointer dereference. Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4401 Signed-off-by: Umio Yasuno Acked-by: Alex Deucher Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/pm/amdgpu_pm.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/amd/pm/amdgpu_pm.c b/drivers/gpu/drm/amd/pm/amdgpu_pm.c index 500cbd1572374..1eaf20cad9fa1 100644 --- a/drivers/gpu/drm/amd/pm/amdgpu_pm.c +++ b/drivers/gpu/drm/amd/pm/amdgpu_pm.c @@ -1436,6 +1436,8 @@ static ssize_t amdgpu_set_pp_power_profile_mode(struct device *dev, if (ret) return -EINVAL; parameter_size++; + if (!tmp_str) + break; while (isspace(*tmp_str)) tmp_str++; } -- 2.53.0