Backtrace

WARNING: CPU: 4 PID: 1510 at drivers/char/tpm/tpm_tis_core.c:205 tpm_tis_status+0x86/0x90
Modules linked in: xt_conntrack nft_chain_nat ipt_MASQUERADE nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 bnep nft_counter xt_CHECKSUM nft_compat nf_tables nfnetlink sunrpc vfat fat ext4 squashfs mbcache jbd2 loop joydev hid_multitouch snd_hda_codec_hdmi snd_sof_pci snd_sof_intel_byt snd_sof_intel_ipc snd_sof_intel_hda_common snd_soc_hdac_hda snd_sof_xtensa_dsp snd_sof_intel_hda snd_hda_codec_realtek snd_sof snd_hda_codec_generic snd_soc_skl snd_soc_sst_ipc snd_soc_sst_dsp snd_hda_ext_core snd_soc_acpi_intel_match snd_soc_acpi iTCO_wdt snd_hda_intel iTCO_vendor_support snd_intel_dspcfg mei_wdt i2c_designware_platform soundwire_intel i2c_designware_core soundwire_generic_allocation intel_rapl_msr x86_pkg_temp_thermal dell_wmi_sysman dell_wmi wmi_bmof intel_powerclamp snd_soc_core intel_wmi_thunderbolt coretemp dell_rbtn snd_compress dell_laptop ledtrig_audio soundwire_cadence dell_smbios soundwire_bus kvm_intel dell_wmi_descriptor iwlmvm dcdbas dell_smm_hwmon snd_hda_codec
 kvm mac80211 snd_hda_core snd_hwdep snd_seq snd_seq_device snd_pcm irqbypass rapl intel_cstate intel_uncore snd_timer libarc4 uvcvideo snd pcspkr iwlwifi i2c_i801 soundcore btusb videobuf2_vmalloc btrtl videobuf2_memops videobuf2_v4l2 btbcm btintel videobuf2_common rtsx_pci_ms bluetooth cfg80211 memstick idma64 videodev processor_thermal_device mei_me ecdh_generic intel_soc_dts_iosf mei intel_lpss_pci rfkill intel_lpss intel_rapl_common wmi int3403_thermal int340x_thermal_zone dell_smo8800 acpi_pad intel_hid int3400_thermal acpi_thermal_rel intel_pmc_core sparse_keymap ip_tables xfs libcrc32c dm_crypt i915 cec intel_gtt i2c_algo_bit drm_kms_helper crct10dif_pclmul rtsx_pci_sdmmc syscopyarea mmc_core sysfillrect sysimgblt fb_sys_fops crc32_pclmul crc32c_intel ahci libahci nvme ghash_clmulni_intel drm nvme_core e1000e t10_pi libata serio_raw rtsx_pci i2c_hid video pinctrl_cannonlake dm_mirror dm_region_hash dm_log dm_mod fuse
CPU: 4 PID: 1510 Comm: rngd Not tainted 4.18.0-305.25.1.el8_4.x86_64 #1
Hardware name: Dell Inc. Latitude 5410/06KF2W, BIOS 1.3.2 09/23/2020
RIP: 0010:tpm_tis_status+0x86/0x90
Code: 00 00 89 d8 75 28 48 83 c4 10 5b c3 31 db 80 3d 38 e2 20 01 00 75 dd 48 c7 c7 8f ad b2 b6 c6 05 28 e2 20 01 01 e8 e3 ce b1 ff <0f> 0b eb c6 e8 e1 cb b1 ff 90 0f 1f 44 00 00 41 57 49 89 f7 41 56
RSP: 0018:ffffb84bc281fca0 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000007
RDX: 0000000000000007 RSI: 0000000000000096 RDI: ffff9c8c2d716800
RBP: ffff9c8c0dd3c000 R08: 000000000000038f R09: 0000000000000004
R10: 0000000000000000 R11: 0000000000000001 R12: ffff9c8c0de9e618
R13: 0000000000000000 R14: 0000000000000014 R15: ffff9c8bdae02000
FS:  00007f05a742f840(0000) GS:ffff9c8c2d700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa4c3d02000 CR3: 000000041ae58004 CR4: 00000000003706e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 tpm_tis_send_data+0x41/0x260
 ? __switch_to_asm+0x41/0x70
 tpm_tis_send_main+0x31/0x100
 tpm_transmit+0xd9/0x490
 tpm_transmit_cmd+0x25/0x90
 tpm2_get_random+0xec/0x1e0
 tpm_get_random+0x57/0x70
 rng_dev_read+0x17f/0x280
 vfs_read+0x91/0x140
 ksys_read+0x4f/0xb0
 do_syscall_64+0x5b/0x1a0
 entry_SYSCALL_64_after_hwframe+0x65/0xca
RIP: 0033:0x7f05a5d7d8e4
Code: c3 0f 1f 44 00 00 41 54 49 89 d4 55 48 89 f5 53 89 fb 48 83 ec 10 e8 7b fc ff ff 4c 89 e2 48 89 ee 89 df 41 89 c0 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 38 44 89 c7 48 89 44 24 08 e8 b7 fc ff ff 48
RSP: 002b:00007ffee2eda3d0 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f05a5d7d8e4
RDX: 00000000000009c4 RSI: 00007ffee2eda450 RDI: 0000000000000003
RBP: 00007ffee2eda450 R08: 0000000000000000 R09: 00007f05a742f840
R10: 0000000000000008 R11: 0000000000000246 R12: 00000000000009c4
R13: 0000000000000000 R14: 00007ffee2eda450 R15: 00007ffee2eda450