System hang-up and panic on mfe_aac_check_ppath_exist function in mfe_aac third party module

Issue

• The following messages are output and the system hang up.

BUG: Bad page map in process clbz0070.sh  pte:6c66726520 pmd:42ce44067
addr:00000000fb3e547b vm_flags:08000070 anon_vma:000000001eb318da mapping:000000007b7d5589 index:210
file:libc-2.28.so fault:xfs_filemap_fault [xfs] mmap:xfs_file_mmap [xfs] readpage:xfs_vm_readpage [xfs]
CPU: 3 PID: 32861 Comm: clbz0070.sh Tainted: G           OE    --------- -  - 4.18.0-193.el8.x86_64 #1
Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 04/05/2016
Call Trace:
dump_stack+0x5c/0x80
print_bad_pte.cold.100+0x63/0xa6
vm_normal_page+0x98/0xc0
unmap_page_range+0x591/0xd50
unmap_vmas+0x7a/0xb0
exit_mmap+0xaa/0x190
mmput+0x54/0x130
do_exit+0x287/0xb40
? syscall_trace_enter+0x1d3/0x2c0
do_group_exit+0x3a/0xa0
__x64_sys_exit_group+0x14/0x20
do_syscall_64+0x5b/0x1a0
entry_SYSCALL_64_after_hwframe+0x65/0xca
RIP: 0033:0x7f27908ea8d6
Code: Bad RIP value.
RSP: 002b:00007ffd11f3e188 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f2790bab860 RCX: 00007f27908ea8d6
RDX: 00000000000000fe RSI: 000000000000003c RDI: 00000000000000fe
RBP: 00000000000000fe R08: 00000000000000e7 R09: ffffffffffffff80
R10: 00007ffd11f3e048 R11: 0000000000000246 R12: 00007f2790bab860
R13: 0000000000000001 R14: 00007f2790bb4388 R15: 0000000000000000
Disabling lock debugging due to kernel taint