Backtrace

WARNING: CPU: 6 PID: 1552 at drivers/char/tpm/tpm_tis_core.c:205 tpm_tis_status+0x66/0x70
Modules linked in: ftdi_sio loop r8153_ecm cdc_ether usbnet uinput rfcomm xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp tun bridge stp llc ccm typec_displayport cmac 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 iptable_filter vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) bnep snd_soc_skl_hda_dsp snd_soc_hdac_hdmi iTCO_wdt intel_pmc_bxt snd_hda_codec_hdmi iTCO_vendor_support snd_hda_codec_realtek snd_hda_codec_generic sunrpc snd_soc_dmic snd_sof_pci snd_sof_intel_hda_common snd_sof_intel_hda snd_sof_intel_byt snd_sof_intel_ipc snd_sof mei_hdcp snd_sof_xtensa_dsp intel_pmt_telemetry
 intel_pmt_class intel_rapl_msr snd_soc_hdac_hda snd_hda_ext_core x86_pkg_temp_thermal intel_powerclamp dell_laptop snd_soc_acpi_intel_match vfat snd_soc_acpi dell_smm_hwmon coretemp ledtrig_audio fat kvm_intel snd_hda_intel snd_intel_dspcfg iwlmvm soundwire_intel soundwire_generic_allocation kvm snd_soc_core mac80211 snd_compress irqbypass intel_cstate snd_pcm_dmaengine intel_uncore soundwire_cadence dell_wmi dell_smbios pcspkr dcdbas snd_usb_audio snd_hda_codec dell_wmi_sysman libarc4 btusb dell_wmi_descriptor wmi_bmof btrtl i2c_i801 snd_hda_core snd_usbmidi_lib btbcm uvcvideo btintel i2c_smbus mei_me ac97_bus mei bluetooth iwlwifi snd_hwdep videobuf2_vmalloc snd_rawmidi videobuf2_memops videobuf2_v4l2 snd_seq videobuf2_common snd_seq_device cfg80211 videodev snd_pcm joydev hid_sensor_als hid_sensor_trigger ecdh_generic hid_sensor_iio_common snd_timer industrialio_triggered_buffer idma64 rfkill kfifo_buf ecc industrialio snd soundcore mc thunderbolt intel_pmt
 processor_thermal_device processor_thermal_rfim ucsi_acpi processor_thermal_mbox processor_thermal_rapl typec_ucsi intel_rapl_common intel_soc_dts_iosf typec int3403_thermal int340x_thermal_zone int3400_thermal intel_hid acpi_thermal_rel sparse_keymap acpi_pad acpi_tad binfmt_misc zram ip_tables dm_crypt r8152 mii uas usb_storage hid_sensor_hub intel_ishtp_loader intel_ishtp_hid i915 hid_multitouch wacom rtsx_pci_sdmmc mmc_core crct10dif_pclmul crc32_pclmul crc32c_intel i2c_algo_bit drm_kms_helper ghash_clmulni_intel cec nvme drm rtsx_pci intel_ish_ipc serio_raw intel_ishtp nvme_core wmi i2c_hid video pinctrl_tigerlake fuse
CPU: 6 PID: 1552 Comm: rngd Tainted: G        W  OE     5.11.16-200.fc33.x86_64 #1
Hardware name: Dell Inc. XPS 13 9310/08607K, BIOS 2.2.0 04/06/2021
RIP: 0010:tpm_tis_status+0x66/0x70
Code: 23 75 05 48 83 c4 10 c3 31 c0 80 3d 38 ff 55 01 00 75 f0 48 c7 c7 6c 66 43 8d 88 44 24 07 c6 05 24 ff 55 01 01 e8 80 60 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:ffffb96380e5fcd0 EFLAGS: 00010286
RAX: 000000000000001b RBX: ffff9c02477a4000 RCX: ffff9c05bf798ac8
RDX: 00000000ffffffd8 RSI: 0000000000000027 RDI: ffff9c05bf798ac0
RBP: ffff9c02477a4000 R08: 0000000000000000 R09: ffffb96380e5fb00
R10: ffffb96380e5faf8 R11: ffffffff8db16330 R12: ffff9c02477efaa8
R13: ffff9c0248735000 R14: 0000000000000000 R15: ffffb96380e5fd8a
FS:  00007fdff9d28840(0000) GS:ffff9c05bf780000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000a4e42760070 CR3: 000000014238e001 CR4: 0000000000770ee0
PKRU: 55555554
Call Trace:
 tpm_tis_send_data+0x2b/0x230
 tpm_tis_send_main+0x1e/0xe0
 tpm_transmit+0xd8/0x3d0
 tpm_transmit_cmd+0x25/0x90
 tpm2_get_random+0xd7/0x1d0
 ? tpm_chip_start+0x6a/0xb0
 tpm_get_random+0x5b/0x70
 rng_dev_read+0x1be/0x2b0
 vfs_read+0xab/0x1a0
 ksys_read+0x4f/0xc0
 do_syscall_64+0x33/0x40
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7fdffa54a0fc
Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 19 fc ff ff 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 6f fc ff ff 48
RSP: 002b:00007ffd7e2428f0 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00000000000009c4 RCX: 00007fdffa54a0fc
RDX: 00000000000009c4 RSI: 00007ffd7e242970 RDI: 0000000000000003
RBP: 00007ffd7e242970 R08: 0000000000000000 R09: 00000000000000fb
R10: 00007ffd7e243334 R11: 0000000000000246 R12: 000055dad5e8b760
R13: 0000000000000000 R14: 00007ffd7e242970 R15: 000055dad5e8b760