From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mout.gmx.net (mout.gmx.net [212.227.15.15]) (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 F3BCDA51 for ; Thu, 7 Sep 2023 06:41:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.de; s=s31663417; t=1694068905; x=1694673705; i=s.l-h@gmx.de; bh=MtXqy4RdyS/achTFtmU3C7IbOQZC319wHC/pSZl6Tm4=; h=X-UI-Sender-Class:Date:From:To:Cc:Subject:In-Reply-To:References; b=d4bki00nSsLKUuCVEbSq9a700UbJw4VS+D7SmpNeVcfARDKCmY7KksdPDaAlIVXZk9wo8yd N9GjG+Bv6aqrvELMMp+sUH3RVwyTWi8F3LA1RSXAAQABIb29BI4X87Mcp1rzyuRb6U0Gc5u3d PHvAXYn2yGzaW4GeGn9rpVmIqj5zzTumfRODbUnEI55JyESX0vxLbuJzcqU9YT41AlXCWh9Bf ejh5Hdul1LNCUTlvBsFeSxgE2da0QsjeEP1yHPVTSB5rC4CUgIpvRjVirnt/Hs8rtiPKVTr1P d6OEiZSqt3BlLkkodO0ZkCHM7n55EB0ZHG7QuvJJ167qLtvlKZfg== X-UI-Sender-Class: 724b4f7f-cbec-4199-ad4e-598c01a50d3a Received: from mir ([94.31.85.155]) by mail.gmx.net (mrgmx004 [212.227.17.190]) with ESMTPSA (Nemesis) id 1Mf07E-1pz1T10vNa-00gbdB; Thu, 07 Sep 2023 08:41:45 +0200 Date: Thu, 7 Sep 2023 08:41:35 +0200 From: Stefan Lippers-Hollmann To: Greg Kroah-Hartman Cc: stable@vger.kernel.org, patches@lists.linux.dev, Christoph Hellwig , Luis Chamberlain , Mauro Carvalho Chehab , linux-media@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 6.5 11/34] modules: only allow symbol_get of EXPORT_SYMBOL_GPL modules Message-ID: <20230907084135.02d97441@mir> In-Reply-To: <20230904182949.104100132@linuxfoundation.org> References: <20230904182948.594404081@linuxfoundation.org> <20230904182949.104100132@linuxfoundation.org> X-Mailer: Claws Mail 4.1.1 (GTK 3.24.38; x86_64-pc-linux-gnu) Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:2Fy5toPkMEYQqq4loPz4mBFk8T1GnH3q6lOrZmBJOUnNmotKBqr acOEkqAmMW1Mn3C0a8Db8s7O6jJuE/1jgx9XjMCoe8whZNm0ym/C6KBcUfzJdyN4CNYN5lF KYDkSNy0guWcTxJPz8Aq5vWgJ8+YYaUUBed3BrM5dkz3YFqsQjA1k3G0LHPwjCswN8zpLlz bL+PLJK9BoDJjCbj7fnmQ== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:MICrYgY2I6Y=;HLDfFrHpVaOBAQXDXawga8o/hhO Xg0vQdF2RtJKkwmF/9mDoNPV9Jj56BMXjI/T4ZGpONMW//d2cDDOC198uMyfjBdJ2iTSHHjRI PrNME+ZHshmCykAdaENMvLakFrV8VyWxl9Qp15TfKolRCVCK10EtRPkLXEqJKh+7eKK/SD6rq m3KRypmDEYB45mP156p217B194shlu5UOXXHxJqIASe+RqFIgbEdACSvXagOGBEhpGl2so38m aQ5hg89tjrv0Sz26V+Az6c9FmstRxohyXYIIQ8DMN2hj53MZVAk5/x9FKDyh0CJPSeLzVBnbY xztCgTOzSVuNEH29KBKk268ru5L2LZX6sJMuSBwQ9zkMlBsXUitIuzOdicwCMya6ZtwTw4XQY uEUN/aEZ6zgulyf9KdLHNAW/L1sKJXdsJ/iRaIAvD+b0D6lmkaY0xydfyfSo9G4X7t6R7m5Dc HUZnF2zKSyhhPBYXx0x5WePGHN/MMBUZaEUpsAjvAUV5I62y+hJX1IPNzgDPnIQlrPQqlNeAV Tm4oEC/4d0DP1H8uVIJv0wnwY0SHRl0YlinMkMDRgVcGveaGpolRYny4RggO9+mUGUW5lI2Kc f9Ln5BKALAlNyE6vwbHHb4ZylyPYXPoDg/mjeVvBUqIhfdTS2nFyQHW5DkKfw4WtWmOPsFq8X 6sSCNRjQBl4Uuc3JT1pubOqQj3e5tI34Lz7fH+lPdV3ku3ZptkwO6m0EwjJVCjVv9YWol9uJ4 wpSOEDv5fEkJnWT6nJa6PuGjHBl7bPKcBDhioIUmuoAb5QmqhhQMvRmZeaF9Z/2y4xEDa1b3m jIYLzbRQXwZnM3BSeyo9M4SCRX/JxzB21TOjZ+0gr8a7UFSOY2ReI0daSxCWPOMFVrAT4leoM Okye+RND5aVFA4svCcW45WMVq0lsKxUbMsE4ZWy9iGr3h0GnzzWJLUz+uK7FSkhOJCHc/3ht4 SxO0bg== Hi On 2023-09-04, Greg Kroah-Hartman wrote: > 6.5-stable review patch. If anyone has any objections, please let me kn= ow. > > ------------------ > > From: Christoph Hellwig > > commit 9011e49d54dcc7653ebb8a1e05b5badb5ecfa9f9 upstream. > > It has recently come to my attention that nvidia is circumventing the > protection added in 262e6ae7081d ("modules: inherit > TAINT_PROPRIETARY_MODULE") by importing exports from their proprietary > modules into an allegedly GPL licensed module and then rexporting them. > > Given that symbol_get was only ever intended for tightly cooperating > modules using very internal symbols it is logical to restrict it to > being used on EXPORT_SYMBOL_GPL and prevent nvidia from costly DMCA > Circumvention of Access Controls law suites. > > All symbols except for four used through symbol_get were already exporte= d > as EXPORT_SYMBOL_GPL, and the remaining four ones were switched over in > the preparation patches. This patch, as part of v6.5.2, breaks the in-kernel ds3000 module (for a TeVii s480 v2 DVB-S2 card, which is a PCIe card attaching two onboard TeVii s660 cards via an onboard USB2 controller (MCS9990), https://www.linuxtv.org/wiki/index.php/TeVii_S480) from loading. [ 2.896589] dvbdev: dvb_create_media_entity: media entity 'dvb-demux' r= egistered. [ 2.901085] failing symbol_get of non-GPLONLY symbol ds3000_attach. [ 2.901089] DVB: Unable to find symbol ds3000_attach() [ 2.901091] dvb-usb: no frontend was attached by 'TeVii S480.2 USB' $ dmesg | grep -i -e dvb -e dw21 -e ds3000 -e symbol [ 2.739710] dvb-usb: found a 'TeVii S480.2 USB' in cold state, will try= to load a firmware [ 2.740232] dvb-usb: downloading firmware from file 'dvb-usb-s660.fw' [ 2.740233] dw2102: start downloading DW210X firmware [ 2.743090] dvb-usb: found a 'Microsoft Xbox One Digital TV Tuner' in c= old state, will try to load a firmware [ 2.743217] dvb-usb: downloading firmware from file 'dvb-usb-dib0700-1.= 20.fw' [ 2.896066] dvb-usb: found a 'TeVii S480.2 USB' in warm state. [ 2.896297] dvb-usb: will pass the complete MPEG2 transport stream to t= he software demuxer. [ 2.896344] dvbdev: DVB: registering new adapter (TeVii S480.2 USB) [ 2.896450] dvb-usb: MAC address: 9f:9f:9f:9f:9f:9f [ 2.896589] dvbdev: dvb_create_media_entity: media entity 'dvb-demux' r= egistered. [ 2.901085] failing symbol_get of non-GPLONLY symbol ds3000_attach. [ 2.901089] DVB: Unable to find symbol ds3000_attach() [ 2.901091] dvb-usb: no frontend was attached by 'TeVii S480.2 USB' [ 2.925255] rc rc0: lirc_dev: driver dw2102 registered at minor =3D 0, = scancode receiver, no transmitter [ 2.925398] dvb-usb: schedule remote query interval to 150 msecs. [ 2.925401] dvb-usb: TeVii S480.2 USB successfully initialized and conn= ected. [ 2.925458] dvb-usb: found a 'TeVii S480.1 USB' in cold state, will try= to load a firmware [ 2.925488] dvb-usb: downloading firmware from file 'dvb-usb-s660.fw' [ 2.925489] dw2102: start downloading DW210X firmware [ 2.959695] dvb-usb: TeVii S480.2 USB successfully deinitialized and di= sconnected. [ 3.079102] dvb-usb: found a 'TeVii S480.1 USB' in warm state. [ 3.079416] dvb-usb: will pass the complete MPEG2 transport stream to t= he software demuxer. [ 3.079486] dvbdev: DVB: registering new adapter (TeVii S480.1 USB) [ 3.079777] dvb-usb: MAC address: 2f:2f:2f:2f:2f:2f [ 3.080123] dvbdev: dvb_create_media_entity: media entity 'dvb-demux' r= egistered. [ 3.080622] failing symbol_get of non-GPLONLY symbol ds3000_attach. [ 3.083513] failing symbol_get of non-GPLONLY symbol ds3000_attach. [ 3.083516] DVB: Unable to find symbol ds3000_attach() [ 3.085420] dvb-usb: no frontend was attached by 'TeVii S480.1 USB' [ 3.087260] rc rc1: lirc_dev: driver dw2102 registered at minor =3D 0, = scancode receiver, no transmitter [ 3.087362] dvb-usb: schedule remote query interval to 150 msecs. [ 3.087365] dvb-usb: TeVii S480.1 USB successfully initialized and conn= ected. [ 3.087451] usbcore: registered new interface driver dw2102 [ 3.115445] dvb-usb: TeVii S480.1 USB successfully deinitialized and di= sconnected. [ 3.319289] dvb-usb: found a 'Microsoft Xbox One Digital TV Tuner' in w= arm state. [ 3.319543] dvb-usb: will pass the complete MPEG2 transport stream to t= he software demuxer. [ 3.320133] dvbdev: DVB: registering new adapter (Microsoft Xbox One Di= gital TV Tuner) [ 3.320350] dvbdev: dvb_create_media_entity: media entity 'dvb-demux' r= egistered. [ 3.498941] usb 5-5: DVB: registering adapter 0 frontend 0 (Panasonic M= N88472)... [ 3.498948] dvbdev: dvb_create_media_entity: media entity 'Panasonic MN= 88472' registered. [ 3.499264] dvb-usb: Microsoft Xbox One Digital TV Tuner successfully i= nitialized and connected. [ 3.499437] usbcore: registered new interface driver dvb_usb_dib0700 [ 4.667281] usb 1-1: Product: DVBS2BOX [ 4.667833] dvb-usb: found a 'TeVii S660 USB' in cold state, will try t= o load a firmware [ 4.667883] dvb-usb: downloading firmware from file 'dvb-usb-s660.fw' [ 4.667885] dw2102: start downloading DW210X firmware [ 4.823196] dvb-usb: found a 'TeVii S660 USB' in warm state. [ 4.823520] dvb-usb: will pass the complete MPEG2 transport stream to t= he software demuxer. [ 4.823950] dvbdev: DVB: registering new adapter (TeVii S660 USB) [ 4.851318] usb 4-1: Product: DVBS2BOX [ 4.851853] dvb-usb: found a 'TeVii S660 USB' in cold state, will try t= o load a firmware [ 4.851898] dvb-usb: downloading firmware from file 'dvb-usb-s660.fw' [ 4.851900] dw2102: start downloading DW210X firmware [ 5.007159] dvb-usb: found a 'TeVii S660 USB' in warm state. [ 5.007469] dvb-usb: will pass the complete MPEG2 transport stream to t= he software demuxer. [ 5.007837] dvbdev: DVB: registering new adapter (TeVii S660 USB) [ 5.067116] dvb-usb: MAC address: 00:18:XX:XX:XX:XX [ 5.067337] dvbdev: dvb_create_media_entity: media entity 'dvb-demux' r= egistered. [ 5.067802] failing symbol_get of non-GPLONLY symbol ds3000_attach. [ 5.071091] failing symbol_get of non-GPLONLY symbol ds3000_attach. [ 5.071094] DVB: Unable to find symbol ds3000_attach() [ 5.072124] dvb-usb: no frontend was attached by 'TeVii S660 USB' [ 5.074041] rc rc1: lirc_dev: driver dw2102 registered at minor =3D 0, = scancode receiver, no transmitter [ 5.074244] dvb-usb: schedule remote query interval to 150 msecs. [ 5.074254] dvb-usb: TeVii S660 USB successfully initialized and connec= ted. [ 5.250767] dvb-usb: MAC address: 00:18:XX:XX:XX:XX [ 5.250985] dvbdev: dvb_create_media_entity: media entity 'dvb-demux' r= egistered. [ 5.251599] failing symbol_get of non-GPLONLY symbol ds3000_attach. [ 5.254664] failing symbol_get of non-GPLONLY symbol ds3000_attach. [ 5.254666] DVB: Unable to find symbol ds3000_attach() [ 5.255871] dvb-usb: no frontend was attached by 'TeVii S660 USB' [ 5.257962] rc rc2: lirc_dev: driver dw2102 registered at minor =3D 2, = scancode receiver, no transmitter [ 5.258132] dvb-usb: schedule remote query interval to 150 msecs. [ 5.258135] dvb-usb: TeVii S660 USB successfully initialized and connec= ted. [ 13.070175] mn88472 12-0018: downloading firmware from file 'dvb-demod-= mn88472-02.fw' This is a self built version of v6.5.2, without any out-of-tree-, backports- or proprietary modules being loaded. $ lspci -nn 00:00.0 Host bridge [0600]: Intel Corporation Device [8086:a703] (rev 01) 00:02.0 VGA compatible controller [0300]: Intel Corporation Raptor Lake-S = GT1 [UHD Graphics 770] [8086:a780] (rev 04) 00:06.0 PCI bridge [0604]: Intel Corporation Raptor Lake PCIe 4.0 Graphics= Port [8086:a74d] (rev 01) 00:08.0 System peripheral [0880]: Intel Corporation GNA Scoring Accelerato= r module [8086:a74f] (rev 01) 00:0a.0 Signal processing controller [1180]: Intel Corporation Raptor Lake= Crashlog and Telemetry [8086:a77d] (rev 01) 00:0e.0 RAID bus controller [0104]: Intel Corporation Volume Management De= vice NVMe RAID Controller Intel Corporation [8086:a77f] 00:14.0 USB controller [0c03]: Intel Corporation Device [8086:7a60] (rev 1= 1) 00:14.2 RAM memory [0500]: Intel Corporation Device [8086:7a27] (rev 11) 00:14.3 Network controller [0280]: Intel Corporation Device [8086:7a70] (r= ev 11) 00:15.0 Serial bus controller [0c80]: Intel Corporation Device [8086:7a4c]= (rev 11) 00:16.0 Communication controller [0780]: Intel Corporation Device [8086:7a= 68] (rev 11) 00:17.0 SATA controller [0106]: Intel Corporation Device [8086:7a62] (rev = 11) 00:1a.0 PCI bridge [0604]: Intel Corporation Device [8086:7a48] (rev 11) 00:1c.0 PCI bridge [0604]: Intel Corporation Device [8086:7a38] (rev 11) 00:1c.2 PCI bridge [0604]: Intel Corporation Device [8086:7a3a] (rev 11) 00:1c.4 PCI bridge [0604]: Intel Corporation Device [8086:7a3c] (rev 11) 00:1d.0 PCI bridge [0604]: Intel Corporation Device [8086:7a36] (rev 11) 00:1f.0 ISA bridge [0601]: Intel Corporation Device [8086:7a06] (rev 11) 00:1f.3 Audio device [0403]: Intel Corporation Device [8086:7a50] (rev 11) 00:1f.4 SMBus [0c05]: Intel Corporation Device [8086:7a23] (rev 11) 00:1f.5 Serial bus controller [0c80]: Intel Corporation Device [8086:7a24]= (rev 11) 01:00.0 Non-Volatile memory controller [0108]: Micron/Crucial Technology P= 5 Plus NVMe PCIe SSD [c0a9:5407] 04:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL812= 5 2.5GbE Controller [10ec:8125] (rev 05) 05:00.0 SATA controller [0106]: ASMedia Technology Inc. ASM1062 Serial ATA= Controller [1b21:0612] (rev 02) 06:00.0 USB controller [0c03]: MosChip Semiconductor Technology Ltd. MCS99= 90 PCIe to 4-Port USB 2.0 Host Controller [9710:9990] 06:00.1 USB controller [0c03]: MosChip Semiconductor Technology Ltd. MCS99= 90 PCIe to 4-Port USB 2.0 Host Controller [9710:9990] 06:00.2 USB controller [0c03]: MosChip Semiconductor Technology Ltd. MCS99= 90 PCIe to 4-Port USB 2.0 Host Controller [9710:9990] 06:00.3 USB controller [0c03]: MosChip Semiconductor Technology Ltd. MCS99= 90 PCIe to 4-Port USB 2.0 Host Controller [9710:9990] 06:00.4 USB controller [0c03]: MosChip Semiconductor Technology Ltd. MCS99= 90 PCIe to 4-Port USB 2.0 Host Controller [9710:9990] 06:00.5 USB controller [0c03]: MosChip Semiconductor Technology Ltd. MCS99= 90 PCIe to 4-Port USB 2.0 Host Controller [9710:9990] 06:00.6 USB controller [0c03]: MosChip Semiconductor Technology Ltd. MCS99= 90 PCIe to 4-Port USB 2.0 Host Controller [9710:9990] 06:00.7 USB controller [0c03]: MosChip Semiconductor Technology Ltd. MCS99= 90 PCIe to 4-Port USB 2.0 Host Controller [9710:9990] $ lsusb Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 010 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 009 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 003: ID 9022:d660 TeVii Technology Ltd. DVB-S2 S660 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 003: ID 9022:d660 TeVii Technology Ltd. DVB-S2 S660 Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 006 Device 002: ID 174c:3074 ASMedia Technology Inc. ASM1074 SuperSpee= d hub Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 005 Device 003: ID 174c:2074 ASMedia Technology Inc. ASM1074 High-Spee= d hub Bus 005 Device 002: ID 045e:02d5 Microsoft Corp. Xbox One Digital TV Tuner Bus 005 Device 007: ID 8087:0026 Intel Corp. AX201 Bluetooth Bus 005 Device 005: ID 0b05:19af ASUSTek Computer, Inc. AURA LED Controlle= r Bus 005 Device 010: ID 0609:0334 SMK Manufacturing, Inc. eHome Infrared Re= ceiver Bus 005 Device 009: ID 04d9:1603 Holtek Semiconductor, Inc. Keyboard Bus 005 Device 008: ID 046d:c069 Logitech, Inc. M-U0007 [Corded Mouse M500= ] Bus 005 Device 006: ID 147e:2016 Upek Biometric Touchchip/Touchstrip Finge= rprint Sensor Bus 005 Device 004: ID 05e3:0608 Genesys Logic, Inc. Hub Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub $ ls -1 /sys/module/ 8250 842_compress 842_decompress ac97_bus acpi acpi_pad acpiphp acpi_tad aesni_intel af_alg af_packet ahci algif_hash algif_skcipher asus_nb_wmi asus_wmi async_memcpy async_pq async_raid6_recov async_tx async_xor autofs4 battery binder binder_alloc binfmt_misc blk_cgroup blk_crypto block bluetooth bnep bridge btbcm btintel btmtk btrtl btusb button ccp cec cfg80211 clocksource cmac configfs coretemp cpufreq cpufreq_conservative cpufreq_powersave cpuid cpuidle cpuidle_haltpoll crc16 crc32c_generic crc32c_intel crc32_pclmul crc64_rocksoft crc_t10dif crct10dif_pclmul cryptd cryptomgr crypto_simd device_hmem dib0070 dib0090 dib3000mc dib7000m dibx000_common dm_mod dns_resolver drm drm_buddy drm_display_helper drm_kms_helper ds3000 dvb_core dvb_usb dvb_usb_dib0700 dvb_usb_dw2102 edac_core ee1004 eeepc_wmi efi_pstore ehci_hcd ehci_pci evdev ext4 fan fat fb firmware_class fscrypto fuse ghash_clmulni_intel gpiolib_acpi grant_table haltpoll hid hid_generic hwmon_vid i2c_algo_bit i2c_core i2c_designware_core i2c_designware_platform i2c_dev i2c_i801 i2c_smbus i8042 i915 idma64 ima intel_cstate intel_gtt intel_idle intel_lpss intel_lpss_pci intel_pmc_bxt intel_pmc_core intel_powerclamp intel_rapl_common intel_rapl_msr intel_tcc_cooling intel_uncore_frequency intel_uncore_frequency_common intel_vsec ip_tables ipv6 irqbypass ir_rc6_decoder iTCO_vendor_support iTCO_wdt iwlmvm iwlwifi jbd2 kernel keyboard kfence kvm kvm_intel ledtrig_audio libahci libarc4 libata libcrc32c linear llc loop lp mac80211 mbcache mc mceusb md_mod mei mei_hdcp mei_me mei_pxp memory_hotplug mfd_core mn88472 module mousedev msr multipath nct6775 nct6775_core netpoll nls_cp437 nls_utf8 nmi_backtrace nvme nvme_core ohci_hcd ohci_pci page_alloc page_reporting parport parport_pc pcie_aspm pciehp pci_hotplug pcspkr pinctrl_alderlake platform_profile pmt_class pmt_telemetry polyval_clmulni polyval_generic ppdev printk processor pstore r8169 raid0 raid1 raid10 raid456 raid6_pq random rapl rc_core rc_rc6_mce rc_tevii_nec rcupdate rcutree realtek regmap_i2c rfcomm rfkill rng_core rtc_cmos scsi_common scsi_mod sd_mod secretmem sg sha512_ssse3 snd snd_compress snd_hda_codec snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_core snd_hda_ext_core snd_hda_intel snd_hwdep snd_intel_dspcfg snd_intel_sdw_acpi snd_pcm snd_pcm_dmaengine snd_soc_acpi snd_soc_acpi_intel_match snd_soc_core snd_soc_hdac_hda snd_sof snd_sof_intel_hda snd_sof_intel_hda_common snd_sof_intel_hda_mlink snd_sof_pci snd_sof_pci_intel_tgl snd_sof_utils snd_sof_xtensa_dsp snd_timer soundcore soundwire_cadence soundwire_generic_allocation soundwire_intel sparse_keymap spurious srcutree stp sysrq tcp_cubic tda18250 thermal tpm tpm_crb tpm_tis tpm_tis_core ttm tun udmabuf usb_common usbcore usbhid vfat video videobuf2_common videobuf2_memops videobuf2_vmalloc vmd vt watchdog wmi wmi_bmof workqueue x86_pkg_temp_thermal xen xhci_hcd xhci_pci xhci_pci_renesas xor x_tables xz_dec zswap Regards Stefan Lippers-Hollmann