bmhook_get_argv_object_from_user_arg_ptr() requests allocation that exceeds MAX_ORDER

Solution Verified - Updated -

Issue

The following warnings appear in the kernel log:

WARNING: CPU: 0 PID: 1234 at mm/page_alloc.c:3189 __alloc_pages_slowpath+0x6f/0x724
…
__kmalloc+0x211/0x230
bmhook_get_argv_object_from_user_arg_ptr.isra.31+0x6c/0x260 [bmhook]

Environment

  • Red Hat Enterprise Linux 7
  • bmhook kernel module loaded

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