kernel panic with TPM error tpm_try_transmit: tpm_send: error -16

Solution Verified - Updated -

Issue

  • kernel panic with following error
[119995.768808] tpm tpm0: Unable to read burstcount
[119995.768821] tpm tpm0: tpm_try_transmit: tpm_send: error -16
[119995.768845] tpm tpm0: A TPM error (379) occurred attempting get random
[119995.768856] usercopy: kernel memory exposure attempt detected from ffff945f3e010700 (kmalloc-64) (379 bytes)
[119995.768923] ------------[ cut here ]------------
[119995.769841] kernel BUG at mm/usercopy.c:72!
[119995.770496] invalid opcode: 0000 [#1] SMP

Environment

  • Red Hat Enterprise Linux 7.7
  • kernel 3.10.0-1062.1.2.el7.x86_64
  • kernel 3.10.0-1060.el7.x86_64
  • kernel 3.10.0-1060.el7.x86_64

  • Red Hat Enterprise Linux 7.8

  • kernel-3.10.0-1127.13.1.el7.x86_64

  • Issue is not hardware specific. But we have observed this issue on below list:
    Dell Latitude 3500, LENOVO version: P52, HPE I43 Synergy 660 Gen10 for RHEL 7.7.
    And on Lenovo ThinkPad P70 for RHEL 7.8.

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