Backtrace

WARNING: CPU: 6 PID: 4289 at drivers/char/tpm/tpm_tis_core.c:249 tpm_tis_status+0x66/0x70
Modules linked in: 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 scsi_transport_iscsi ip6table_filter ip6_tables iptable_filter cmac bnep sunrpc vfat fat squashfs loop snd_sof_pci snd_sof_intel_byt snd_sof_intel_hda_common snd_soc_hdac_hda snd_sof_intel_hda snd_sof_intel_ipc snd_sof snd_sof_xtensa_dsp snd_soc_skl snd_soc_sst_ipc snd_soc_sst_dsp snd_hda_ext_core snd_soc_acpi_intel_match ucsi_ccg snd_soc_acpi snd_hda_codec_hdmi x86_pkg_temp_thermal intel_powerclamp snd_hda_codec_realtek coretemp snd_hda_codec_generic kvm_intel iTCO_wdt intel_pmc_bxt ee1004 iTCO_vendor_support mei_hdcp iwlmvm kvm snd_hda_intel intel_rapl_msr snd_intel_dspcfg soundwire_intel soundwire_generic_allocation irqbypass snd_soc_core mac80211
 snd_compress snd_pcm_dmaengine soundwire_cadence rapl snd_usb_audio uvcvideo snd_hda_codec btusb videobuf2_vmalloc btrtl videobuf2_memops snd_usbmidi_lib btbcm intel_cstate snd_rawmidi btintel libarc4 snd_hda_core videobuf2_v4l2 snd_seq intel_uncore ac97_bus videobuf2_common bluetooth pcspkr iwlwifi wmi_bmof intel_wmi_thunderbolt i2c_i801 snd_seq_device i2c_smbus snd_hwdep thunderbolt videodev snd_pcm mei_me ecdh_generic cfg80211 joydev mc mei thinkpad_acpi idma64 ecc snd_timer ledtrig_audio ucsi_acpi snd processor_thermal_device intel_rapl_common typec_ucsi soundcore i2c_nvidia_gpu intel_soc_dts_iosf intel_pch_thermal typec int3403_thermal rfkill int340x_thermal_zone int3400_thermal acpi_pad acpi_thermal_rel zram ip_tables dm_crypt uas usb_storage i915 nouveau mxm_wmi ttm i2c_algo_bit rtsx_pci_sdmmc drm_kms_helper mmc_core cec crct10dif_pclmul crc32_pclmul crc32c_intel nvme e1000e drm serio_raw nvme_core rtsx_pci ghash_clmulni_intel wmi video pinctrl_cannonlake fuse
CPU: 6 PID: 4289 Comm: rngd Tainted: G     U  W         5.10.11-200.fc33.x86_64 #1
Hardware name: LENOVO 20URCTO1WW/20URCTO1WW, BIOS N30ET33W (1.16 ) 12/17/2020
RIP: 0010:tpm_tis_status+0x66/0x70
Code: 23 75 05 48 83 c4 10 c3 31 c0 80 3d 00 e1 56 01 00 75 f0 48 c7 c7 2c 37 43 9e 88 44 24 07 c6 05 ec e0 56 01 01 e8 cb 03 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: 0000:ffff9b10815a7cd0 EFLAGS: 00010286
RAX: 000000000000001b RBX: ffff88e8c8c52000 RCX: ffff88f01f598a88
RDX: 00000000ffffffd8 RSI: 0000000000000027 RDI: ffff88f01f598a80
RBP: ffff88e8c8c52000 R08: 0000000000000000 R09: ffff9b10815a7b00
R10: ffff9b10815a7af8 R11: ffffffff9eb44748 R12: ffff88e8c8d224a8
R13: ffff88e91daff000 R14: 0000000000000000 R15: ffff9b10815a7d8a
FS:  00007fc263ae2840(0000) GS:ffff88f01f580000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa0ba17b340 CR3: 0000000117c34001 CR4: 00000000007706e0
PKRU: 55555554
Call Trace:
 tpm_tis_send_data+0x2b/0x230
 ? tpm_tcg_write_bytes+0x33/0x50
 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+0x1b8/0x2c0
 vfs_read+0xab/0x1a0
 ksys_read+0x4f/0xc0
 do_syscall_64+0x33/0x40
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7fc2643620fc
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:00007fff1874fbe0 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00000000000009c4 RCX: 00007fc2643620fc
RDX: 00000000000009c4 RSI: 00007fff1874fc60 RDI: 0000000000000003
RBP: 00007fff1874fc60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000008 R11: 0000000000000246 R12: 000055d2d6f6c6c0
R13: 0000000000000000 R14: 00007fff1874fc60 R15: 000055d2d6f6c6f0