NULL pointer dereference in kernel

[Aaron M Hosford]

[ 132.973872] BUG: kernel NULL pointer dereference, address: 0000000000000098
[ 132.973881] #PF: supervisor read access in kernel mode
[ 132.973885] #PF: error_code(0x0000) - not-present page
[ 132.973889] PGD 0 P4D 0
[ 132.973898] Oops: 0000 [#1] SMP PTI
[ 132.973907] CPU: 5 PID: 13593 Comm: modprobe Tainted: P C OE 5.4.0-100-generic #113-Ubuntu
[ 132.973911] Hardware name: Dell Inc. G5 5587/03PVDF, BIOS 1.9.0 02/11/2019
[ 132.973947] RIP: 0010:snd_soc_tplg_component_remove+0x25/0x530 [snd_soc_core]
[ 132.973954] Code: 00 00 0f 1f 00 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 49 89 fe 41 55 41 54 53 bb 08 00 00 00 48 83 ec 28 48 8b 47 20 89 75 cc <48> 8b 80 98 00 00 00 48 05 90 04 00 00 48 89 45 c0 48 8d 87 b0 00
[ 132.973960] RSP: 0018:ffffb4dc412cbd28 EFLAGS: 00010296
[ 132.973965] RAX: 0000000000000000 RBX: 0000000000000008 RCX: 0000000000000000
[ 132.973969] RDX: ffff8fa75c5e2f80 RSI: 0000000000000000 RDI: ffff8fa86061a818
[ 132.973974] RBP: ffffb4dc412cbd78 R08: ffff8fa86a794ea0 R09: 0000000000000286
[ 132.973978] R10: ffff8fa84ed17ee0 R11: 0000000000000001 R12: ffff8fa86a794c10
[ 132.973982] R13: dead000000000122 R14: ffff8fa86061a818 R15: ffff8fa86061a800
[ 132.973988] FS: 00007f1d70610540(0000) GS:ffff8fa86f340000(0000) knlGS:0000000000000000
[ 132.973993] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 132.973997] CR2: 0000000000000098 CR3: 0000000350e80003 CR4: 00000000003606e0
[ 132.974001] Call Trace:
[ 132.974015] ? acpi_companion_match+0x20/0x70
[ 132.974041] snd_soc_unregister_component+0x7b/0xd0 [snd_soc_core]
[ 132.974070] devm_component_release+0x11/0x20 [snd_soc_core]
[ 132.974080] release_nodes+0x19a/0x1e0
[ 132.974090] devres_release_all+0x3f/0x50
[ 132.974097] device_release_driver_internal+0x10f/0x1d0
[ 132.974104] driver_detach+0x4c/0x90
[ 132.974110] bus_remove_driver+0x5c/0xd0
[ 132.974116] driver_unregister+0x31/0x50
[ 132.974124] platform_driver_unregister+0x12/0x20
[ 132.974154] snd_soc_util_exit+0x10/0xcbd [snd_soc_core]
[ 132.974181] snd_soc_exit+0x9/0x23 [snd_soc_core]
[ 132.974189] __x64_sys_delete_module+0x147/0x2b0
[ 132.974199] ? exit_to_usermode_loop+0xea/0x160
[ 132.974207] do_syscall_64+0x57/0x190
[ 132.974215] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 132.974221] RIP: 0033:0x7f1d7075cbcb
[ 132.974228] Code: 73 01 c3 48 8b 0d c5 82 0c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 b0 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 95 82 0c 00 f7 d8 64 89 01 48
[ 132.974232] RSP: 002b:00007fffee532c28 EFLAGS: 00000206 ORIG_RAX: 00000000000000b0
[ 132.974239] RAX: ffffffffffffffda RBX: 00005654bf441cf0 RCX: 00007f1d7075cbcb
[ 132.974243] RDX: 0000000000000000 RSI: 0000000000000800 RDI: 00005654bf441d58
[ 132.974247] RBP: 00005654bf441cf0 R08: 0000000000000000 R09: 0000000000000000
[ 132.974251] R10: 00007f1d707d8ac0 R11: 0000000000000206 R12: 00005654bf441d58
[ 132.974255] R13: 0000000000000000 R14: 00005654bf444460 R15: 00005654bf4383e0
[ 132.974262] Modules linked in: rfcomm ccm cmac algif_hash algif_skcipher af_alg bnep binfmt_misc nls_iso8859_1 nvidia_uvm(OE) snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic nvidia_drm(POE) nvidia_modeset(POE) x86_pkg_temp_thermal snd_hda_ext_core mei_hdcp intel_powerclamp snd_soc_core(-) snd_compress ac97_bus snd_pcm_dmaengine coretemp nvidia(POE) intel_rapl_msr snd_hda_intel snd_intel_dspcfg snd_hda_codec snd_hda_core snd_hwdep snd_pcm kvm_intel kvm crct10dif_pclmul ghash_clmulni_intel snd_seq_midi snd_seq_midi_event aesni_intel dell_laptop snd_rawmidi dell_wmi ledtrig_audio crypto_simd iwlmvm cryptd dell_smbios dcdbas glue_helper i915 snd_seq mac80211 snd_seq_device snd_timer rapl uvcvideo btusb btrtl videobuf2_vmalloc intel_cstate libarc4 btbcm videobuf2_memops videobuf2_v4l2 btintel serio_raw intel_wmi_thunderbolt wmi_bmof iwlwifi bluetooth dell_wmi_descriptor snd drm_kms_helper videobuf2_common mxm_wmi i2c_algo_bit input_leds videodev joydev ecdh_generic fb_sys_fops
[ 132.974345] ucsi_acpi mei_me ecc syscopyarea hid_multitouch mc cfg80211 soundcore sysfillrect mei processor_thermal_device typec_ucsi sysimgblt intel_rapl_common intel_pch_thermal intel_soc_dts_iosf typec int3403_thermal int340x_thermal_zone intel_hid sparse_keymap mac_hid int3400_thermal acpi_pad acpi_thermal_rel sch_fq_codel msr parport_pc ppdev lp parport binder_linux drm ashmem_linux(CE) ip_tables x_tables autofs4 usbhid hid_generic intel_lpss_pci crc32_pclmul psmouse ahci alx intel_lpss idma64 mdio libahci virt_dma i2c_hid hid wmi pinctrl_cannonlake video pinctrl_intel [last unloaded: snd_soc_hdac_hda]
[ 132.974410] CR2: 0000000000000098
[ 132.974416] ---[ end trace cc6d19f9b098c3c5 ]---
[ 132.974444] RIP: 0010:snd_soc_tplg_component_remove+0x25/0x530 [snd_soc_core]
[ 132.974450] Code: 00 00 0f 1f 00 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 49 89 fe 41 55 41 54 53 bb 08 00 00 00 48 83 ec 28 48 8b 47 20 89 75 cc <48> 8b 80 98 00 00 00 48 05 90 04 00 00 48 89 45 c0 48 8d 87 b0 00
[ 132.974455] RSP: 0018:ffffb4dc412cbd28 EFLAGS: 00010296
[ 132.974460] RAX: 0000000000000000 RBX: 0000000000000008 RCX: 0000000000000000
[ 132.974464] RDX: ffff8fa75c5e2f80 RSI: 0000000000000000 RDI: ffff8fa86061a818
[ 132.974469] RBP: ffffb4dc412cbd78 R08: ffff8fa86a794ea0 R09: 0000000000000286
[ 132.974473] R10: ffff8fa84ed17ee0 R11: 0000000000000001 R12: ffff8fa86a794c10
[ 132.974477] R13: dead000000000122 R14: ffff8fa86061a818 R15: ffff8fa86061a800
[ 132.974483] FS: 00007f1d70610540(0000) GS:ffff8fa86f340000(0000) knlGS:0000000000000000
[ 132.974487] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 132.974491] CR2: 0000000000000098 CR3: 0000000350e80003 CR4: 00000000003606e0

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.4.0-100-generic 5.4.0-100.113
ProcVersionSignature: Ubuntu 5.4.0-100.113-generic 5.4.166
Uname: Linux 5.4.0-100-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27.21
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: hosford42 4728 F.... pulseaudio
 /dev/snd/controlC0: hosford42 4728 F.... pulseaudio
 /dev/snd/pcmC0D0p: hosford42 4728 F...m pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Sat Feb 26 23:18:39 2022
InstallationDate: Installed on 2019-03-03 (1091 days ago)
InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 003: ID 0c45:6718 Microdia Integrated_Webcam_HD
 Bus 001 Device 002: ID 3938:1192 2.4G RF Keyboard & Mouse
 Bus 001 Device 004: ID 8087:0aaa Intel Corp.
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Dell Inc. G5 5587
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-100-generic root=UUID=50541be1-b230-4d7d-bda0-17fd45907a10 ro rdblacklist=nouveau nouveau.modeset=0 quiet splash nvidia-drm.modeset=1 vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-5.4.0-100-generic N/A
 linux-backports-modules-5.4.0-100-generic N/A
 linux-firmware 1.187.26
SourcePackage: linux
StagingDrivers: ashmem_linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 02/11/2019
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.9.0
dmi.board.name: 03PVDF
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.9.0:bd02/11/2019:svnDellInc.:pnG55587:pvr:rvnDellInc.:rn03PVDF:rvrA00:cvnDellInc.:ct10:cvr:
dmi.product.family: GSeries
dmi.product.name: G5 5587
dmi.product.sku: 0824
dmi.sys.vendor: Dell Inc.

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This change was made by a bot.