Backtrace

WARNING: CPU: 0 PID: 169 at drivers/char/tpm/tpm_tis_core.c:205 tpm_tis_status+0x66/0x70
Modules linked in: uinput rfcomm snd_seq_dummy snd_hrtimer xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp bridge stp llc nft_objref nf_conntrack_netbios_ns nf_conntrack_broadcast nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat ip6table_nat ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 iptable_mangle iptable_raw iptable_security ip_set nf_tables nfnetlink ip6table_filter ip6_tables cmac iptable_filter snd_sof_pci_intel_cnl snd_sof_intel_hda_common soundwire_intel soundwire_generic_allocation soundwire_cadence snd_sof_intel_hda snd_sof_pci dell_rbtn snd_sof bnep snd_sof_xtensa_dsp sunrpc snd_soc_skl snd_soc_hdac_hda snd_hda_ext_core snd_soc_sst_ipc snd_soc_sst_dsp ee1004 snd_soc_acpi_intel_match x86_pkg_temp_thermal intel_powerclamp iTCO_wdt coretemp snd_soc_acpi intel_pmc_bxt iTCO_vendor_support mei_wdt
 mei_hdcp intel_rapl_msr snd_soc_core iwlmvm dell_laptop kvm_intel dell_smm_hwmon snd_compress mac80211 kvm snd_pcm_dmaengine snd_hda_codec_realtek ac97_bus snd_hda_codec_generic ledtrig_audio libarc4 snd_hda_codec_hdmi irqbypass snd_hda_intel rapl uvcvideo btusb snd_intel_dspcfg intel_cstate dell_wmi snd_intel_sdw_acpi vfat iwlwifi intel_uncore dell_smbios btrtl fat videobuf2_vmalloc pcspkr snd_hda_codec dell_wmi_sysman btbcm dcdbas snd_hda_core btintel videobuf2_memops i2c_i801 videobuf2_v4l2 dell_wmi_descriptor intel_wmi_thunderbolt wmi_bmof i2c_smbus snd_hwdep thunderbolt bluetooth cfg80211 snd_seq videobuf2_common snd_seq_device snd_pcm videodev processor_thermal_device processor_thermal_rfim processor_thermal_mbox mei_me processor_thermal_rapl snd_timer ecdh_generic intel_rapl_common mei joydev mc ecc idma64 snd rfkill intel_pch_thermal soundcore ucsi_acpi intel_soc_dts_iosf typec_ucsi typec int3403_thermal int340x_thermal_zone intel_hid int3400_thermal
 acpi_thermal_rel sparse_keymap acpi_pad zram ip_tables hid_sensor_hub intel_ishtp_loader intel_ishtp_hid hid_multitouch i915 nouveau drm_ttm_helper ttm rtsx_pci_sdmmc i2c_algo_bit mmc_core drm_kms_helper crct10dif_pclmul crc32_pclmul crc32c_intel cec nvme intel_ish_ipc drm e1000e ghash_clmulni_intel mxm_wmi nvme_core rtsx_pci serio_raw intel_ishtp i2c_hid_acpi i2c_hid video wmi pinctrl_cannonlake fuse
CPU: 0 PID: 169 Comm: kworker/0:2 Not tainted 5.12.5-300.fc34.x86_64 #1
Hardware name: Dell Inc. Precision 7550/04JGVR, BIOS 1.6.2 12/23/2020
Workqueue: tpm_dev_wq tpm_dev_async_work
RIP: 0010:tpm_tis_status+0x66/0x70
Code: 23 75 05 48 83 c4 10 c3 31 c0 80 3d ea a0 55 01 00 75 f0 48 c7 c7 84 1c 44 ab 88 44 24 07 c6 05 d6 a0 55 01 01 e8 8b f3 3c 00 <0f> 0b 0f b6 44 24 07 eb d0 90 0f 1f 44 00 00 41 57 41 56 41 55 41
RSP: 0018:ffffbd78004b3d40 EFLAGS: 00010286
RAX: 000000000000001b RBX: ffff9faf87c85000 RCX: 0000000000000027
RDX: ffff9fb2fd4185c8 RSI: 0000000000000001 RDI: ffff9fb2fd4185c0
RBP: ffff9faf87c85000 R08: 0000000000000000 R09: ffffbd78004b3b70
R10: ffffbd78004b3b68 R11: ffffffffabb45f28 R12: ffff9faf87d33c28
R13: ffff9faf831d60ba R14: 0000000000000000 R15: ffffbd78004b3df2
FS:  0000000000000000(0000) GS:ffff9fb2fd400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1297982023 CR3: 0000000173058002 CR4: 00000000007706f0
PKRU: 55555554
Call Trace:
 tpm_tis_send_data+0x2b/0x230
 ? sched_clock+0x5/0x10
 ? sched_clock_cpu+0xc/0xa0
 ? tpm_tcg_read_bytes+0x30/0x50
 tpm_tis_send_main+0x1e/0xe0
 tpm_transmit+0xd6/0x3d0
 tpm_dev_transmit.constprop.0+0x47/0xa0
 tpm_dev_async_work+0x62/0x90
 process_one_work+0x1ec/0x380
 worker_thread+0x53/0x3e0
 ? process_one_work+0x380/0x380
 kthread+0x11b/0x140
 ? kthread_associate_blkcg+0xa0/0xa0
 ret_from_fork+0x1f/0x30