From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 00115479893; Sat, 12 Sep 2026 11:48:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789213704; cv=none; b=GJUwZ9zmZGRBjYbm+47QkflXMYxl+tjfxGTH9JREWvMaNaJXhIN6mQP2ksSA+SoUD6TFb/lY7ygDzCgb3HB79PGITqdPQsr7WcVVpIKGcbQ9TXggcSkXXUO2rrnQd2//sJTB5NU0tSaoywabB88zBODncSGViMrnYdICBm5Rk4Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789213704; c=relaxed/simple; bh=JLYmpG32t6TZGY2rl/ZFokH0MzHSGdEAIC5MLA6a/U4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=utgGjAZiCUVK+lICsQ3r8GFn0HzUtX2TRjT9ckMM8ZlYhpBYOknyd+1LbEhd5xOdemiPjS9rf3h8FkwGU5NU3AKVxV6mYdVZ1eOtvCX5jzUnpVcQnAb/7pwfT8jUAO+MifTIUw2VjdGJClv6Qw2OD4kceLd1ZKq59GyOqKLul0E= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=pWAeaP7z; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="pWAeaP7z" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E3E271F000FF; Sat, 12 Sep 2026 11:48:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1789213702; bh=9T21waQXoYZq7SuF3/O2Wm5IJAuQpyvB+DvhLfNaJt8=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=pWAeaP7zlGIHYMx5/vUcmtArfFLu4GdpXYntwvz8hwaeEn75uVBxV/Sr2icAVc71U DmW29GHnD+AyvZerGhKUdNIV9Udq+P8NEVEF0mFag7wPyvtXzwjrU3dd1+EvBQtlwF 8JMIll9Eo/+Dg0hTeMAlq0wEBk78HxPfFpYsg09c= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Tao Cui , Bibo Mao , Huacai Chen Subject: [PATCH 6.12 0175/1376] LoongArch: Fix acpi_package_ids[] array overflow Date: Sat, 12 Sep 2026 08:43:21 +0200 Message-ID: <20260912065611.449414459@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260912065607.535295758@linuxfoundation.org> References: <20260912065607.535295758@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Bibo Mao commit 2a2367d46d7a4ee4122b7a86e57125542dbbe963 upstream. With LoongArch virt machine, a typical setting is one core per socket, there will max 256 sockets (packages) on one VM. With PPTT acpi table, array acpi_package_ids[] will be overflowed. Here change the array size of acpi_package_ids[] with the max value of MAX_PACKAGES and KVM_MAX_VCPUS. Cc: stable@vger.kernel.org # 6.7+ Fixes: 4e8f58620f67 ("LoongArch: Retrieve CPU package ID from PPTT when available") Reviewed-by: Tao Cui Signed-off-by: Bibo Mao Signed-off-by: Huacai Chen Signed-off-by: Greg Kroah-Hartman --- arch/loongarch/kernel/acpi.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/arch/loongarch/kernel/acpi.c +++ b/arch/loongarch/kernel/acpi.c @@ -12,6 +12,7 @@ #include #include #include +#include #include #include #include @@ -201,7 +202,7 @@ static void __init acpi_process_madt(voi int pptt_enabled; static int acpi_nr_packages; -static int acpi_package_ids[MAX_PACKAGES]; +static int acpi_package_ids[MAX(MAX_PACKAGES, KVM_MAX_VCPUS)]; int __init parse_acpi_topology(void) {