Backtrace

WARNING: CPU: 12 PID: 1185 at drivers/char/tpm/tpm_tis_core.c:205 tpm_tis_status+0x66/0x70
Modules linked in: snd_usb_audio snd_usbmidi_lib snd_rawmidi cmac 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 uvcvideo nfnetlink videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common ip6table_filter ip6_tables videodev iptable_filter mc vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) qrtr_mhi bnep sunrpc snd_hda_codec_hdmi snd_sof_pci snd_sof_intel_hda_common snd_hda_codec_realtek snd_sof_intel_hda snd_sof_intel_byt snd_hda_codec_generic snd_sof_intel_ipc snd_sof snd_sof_xtensa_dsp snd_soc_skl snd_soc_hdac_hda snd_hda_ext_core snd_soc_sst_ipc snd_soc_sst_dsp snd_soc_acpi_intel_match snd_soc_acpi snd_hda_intel snd_intel_dspcfg soundwire_intel
 soundwire_generic_allocation qrtr x86_pkg_temp_thermal snd_soc_core ns intel_powerclamp coretemp ath11k_pci iTCO_wdt snd_compress intel_pmc_bxt kvm_intel dell_laptop snd_pcm_dmaengine ath11k mei_hdcp ee1004 iTCO_vendor_support soundwire_cadence vfat ledtrig_audio intel_rapl_msr snd_hda_codec dell_smm_hwmon kvm fat squashfs qmi_helpers irqbypass snd_hda_core rapl mac80211 loop ac97_bus dell_wmi snd_hwdep nvidia_drm(POE) dell_smbios snd_seq intel_cstate nvidia_modeset(POE) dcdbas intel_uncore snd_seq_device nvidia_uvm(POE) snd_pcm cfg80211 pcspkr dell_wmi_sysman(+) wmi_bmof dell_wmi_descriptor hci_uart intel_wmi_thunderbolt snd_timer snd btqca btrtl btbcm i2c_i801 btintel soundcore mhi i2c_smbus mei_me hid_sensor_als thunderbolt libarc4 bluetooth nvidia(POE) mei joydev hid_sensor_trigger idma64 hid_sensor_iio_common processor_thermal_device industrialio_triggered_buffer kfifo_buf processor_thermal_rfim ucsi_acpi industrialio processor_thermal_mbox ecdh_generic
 processor_thermal_rapl typec_ucsi rfkill intel_rapl_common intel_pch_thermal intel_soc_dts_iosf typec ecc int3403_thermal int340x_thermal_zone intel_hid sparse_keymap int3400_thermal acpi_pad acpi_thermal_rel acpi_tad ip_tables hid_sensor_hub intel_ishtp_loader intel_ishtp_hid i915 hid_multitouch rtsx_pci_sdmmc i2c_algo_bit drm_kms_helper mmc_core crct10dif_pclmul crc32_pclmul crc32c_intel cec drm r8152 nvme intel_ish_ipc nvme_core ghash_clmulni_intel rtsx_pci serio_raw mii hid_jabra intel_ishtp wmi i2c_hid video pinctrl_cannonlake fuse
CPU: 12 PID: 1185 Comm: rngd Tainted: P           OE     5.11.14-200.fc33.x86_64 #1
Hardware name: Dell Inc. XPS 15 9500/0XWT2F, BIOS 1.7.1 03/29/2021
RIP: 0010:tpm_tis_status+0x66/0x70
Code: 23 75 05 48 83 c4 10 c3 31 c0 80 3d 48 00 56 01 00 75 f0 48 c7 c7 fc 64 43 9e 88 44 24 07 c6 05 34 00 56 01 01 e8 90 61 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:ffffb311418a7cd0 EFLAGS: 00010286
RAX: 000000000000001b RBX: ffff943d48310000 RCX: ffff9444ad718ac8
RDX: 00000000ffffffd8 RSI: 0000000000000027 RDI: ffff9444ad718ac0
RBP: ffff943d48310000 R08: 0000000000000000 R09: ffffb311418a7b00
R10: ffffb311418a7af8 R11: ffffffff9eb44f08 R12: ffff943d48363a68
R13: ffff943d6cf83000 R14: 0000000000000000 R15: ffffb311418a7d8a
FS:  00007feba174e840(0000) GS:ffff9444ad700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007feba06833b4 CR3: 0000000139936002 CR4: 00000000007706e0
PKRU: 55555554
Call Trace:
 tpm_tis_send_data+0x2b/0x230
 tpm_tis_send_main+0x1e/0xe0
 ? proc_dostring_coredump+0x80/0x80
 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: 0033:0x7feba1f700fc
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:00007fff907662d0 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00000000000009c4 RCX: 00007feba1f700fc
RDX: 00000000000009c4 RSI: 00007fff90766350 RDI: 0000000000000003
RBP: 00007fff90766350 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000008 R11: 0000000000000246 R12: 0000561cd3f99760
R13: 0000000000000000 R14: 00007fff90766350 R15: 0000561cd3f99760