Why we have kernel panic with mentioning RIP : [unknown or invalid address] ?

Issue

We had a kernel panic with following traces :

 #4 [ffff88003c93daa0] __bad_area_nosemaphore at ffffffff8104a295
 #5 [ffff88003c93daf0] bad_area_nosemaphore at ffffffff8104a363
 #6 [ffff88003c93db00] __do_page_fault at ffffffff8104aabf
 #7 [ffff88003c93dc20] do_page_fault at ffffffff8152e37e
 #8 [ffff88003c93dc50] page_fault at ffffffff8152b735
    [exception RIP: unknown or invalid address]
    RIP: ffff88003efde2c8  RSP: ffff88003c93dd00  RFLAGS: 00010206
    RAX: ffff88003d74b350  RBX: ffff88003c93de68  RCX: ffff88003c93de68
    RDX: 0000000000000000  RSI: ffff88003c93de68  RDI: ffff88003ef4f6c0
    RBP: ffff88003c93ddd8   R8: 0000000000000003   R9: 0000000000000001
    R10: 0000000000000001  R11: 0000000000000001  R12: ffff88003abff021
    R13: 0000000000000003  R14: 0000000000000003  R15: 0000000000000003
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
 #9 [ffff88003c93dd00] __link_path_walk at ffffffff811991a9
#10 [ffff88003c93dde0] path_walk at ffffffff8119a09a
#11 [ffff88003c93de20] filename_lookup at ffffffff8119a2ab
#12 [ffff88003c93de60] user_path_at at ffffffff8119b3d7
#13 [ffff88003c93df30] sys_chdir at ffffffff81186929
#14 [ffff88003c93df80] system_call_fastpath at ffffffff8100b072
    RIP: 00007f7b48088f77  RSP: 00007fff2a1342d8  RFLAGS: 00010213
    RAX: 0000000000000050  RBX: ffffffff8100b072  RCX: 00007f7b48088f77
    RDX: 000000000000006e  RSI: 0000000000000000  RDI: 00007f7b4ad2a28e
    RBP: 00007fff2a134370   R8: 0000000000000000   R9: 0000000000000001
    R10: 0000000000000001  R11: 0000000000000213  R12: 0000000000000003
    R13: ffffffff00000012  R14: 00007f7b4ca0d540  R15: 000000000000000b
    ORIG_RAX: 0000000000000050  CS: 0033  SS: 002b