Kernel crashed with message "usercopy: Kernel memory exposure attempt detected from null address"

Solution Unverified - Updated -

Issue

  • Kernel crash with:
usercopy: Kernel memory exposure attempt detected from null address (offset 12, size 508)!
------------[ cut here ]------------
kernel BUG at mm/usercopy.c:103!

Environment

  • Red Hat Enterprise Linux 8
  • kernel-4.18.0-553.52.1.el8_10
  • third-party module [devsrr]

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