From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 46CB82F25F4; Wed, 21 Jan 2026 18:34:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769020468; cv=none; b=K0FJ/wWQn7ZfhVz9TVF28Dl1yS72AmrA7KSTiR4RvCitGoRxDaLyWVIVaHK3ray8UfnRNV6rG8VOcyRImH9u4LWSxgWN4kPrgWWNeB5nrH62idNBheGro6IdMT3uSF/8jIDlz7EUy5t8xhfuQNnQeT3pq8kpc5uEdXwlUdSe8hw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769020468; c=relaxed/simple; bh=IcurVtLvMj4myKpSiNb1B3UzJjYvL+yG47+Za60o0rk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=leiE+u1VPyi/geuR5PbhIFqclI2KcIS9ppElC9YZhZxKrhKg2rBLFgG3gOGaeXUSZYgt+OSJKtSGIib2yAXAU2euQDeIadoWpJWDomy+yrgHB7chXMwY11ER9J6hnRtgqam2NHcakJJddahyBwYLyjwg5JlaSFT05Qwv4BTOJ/0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=NvFEPx5s; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="NvFEPx5s" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 845C5C4CEF1; Wed, 21 Jan 2026 18:34:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1769020467; bh=IcurVtLvMj4myKpSiNb1B3UzJjYvL+yG47+Za60o0rk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=NvFEPx5sOmVe6UqXYx9sCrUXywGuzF/0k41mZ8NTBx7tl3naFC4FsL6iojYno3wIm RDemWNevkOCIttXRXtmXGZeuDTpzeuLT6hXMX6GN/I/KkIoMd9oxvtOrVaWNQryUBw DYN4ickyytoYZBnyiJKMfgzMyuKMWmgml1anFBnI= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Bibo Mao , Qiang Ma , Huacai Chen Subject: [PATCH 6.18 166/198] LoongArch: KVM: Fix kvm_device leak in kvm_pch_pic_destroy() Date: Wed, 21 Jan 2026 19:16:34 +0100 Message-ID: <20260121181424.521402468@linuxfoundation.org> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260121181418.537774329@linuxfoundation.org> References: <20260121181418.537774329@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Qiang Ma commit 1cf342a7c3adc5877837b53bbceb5cc9eff60bbf upstream. In kvm_ioctl_create_device(), kvm_device has allocated memory, kvm_device->destroy() seems to be supposed to free its kvm_device struct, but kvm_pch_pic_destroy() is not currently doing this, that would lead to a memory leak. So, fix it. Cc: stable@vger.kernel.org Reviewed-by: Bibo Mao Signed-off-by: Qiang Ma Signed-off-by: Huacai Chen Signed-off-by: Greg Kroah-Hartman --- arch/loongarch/kvm/intc/pch_pic.c | 1 + 1 file changed, 1 insertion(+) --- a/arch/loongarch/kvm/intc/pch_pic.c +++ b/arch/loongarch/kvm/intc/pch_pic.c @@ -475,6 +475,7 @@ static void kvm_pch_pic_destroy(struct k /* unregister pch pic device and free it's memory */ kvm_io_bus_unregister_dev(kvm, KVM_MMIO_BUS, &s->device); kfree(s); + kfree(dev); } static struct kvm_device_ops kvm_pch_pic_dev_ops = {