A System installed oracleoks module crashed due to "BUG: unable to handle kernel paging request" at memcpy().

Issue

• Kernel panic occured due to the following backtrace.

[627885.094680] BUG: unable to handle kernel paging request at ffff9e14f1b8d000
[627885.095254] IP: [<ffffffffab7978b6>] memcpy+0x6/0x110
[627885.095567] PGD 665c74067 PUD 665c79067 PMD 665c7c067 PTE 0
[627885.095887] Oops: 0000 [#1] SMP
...
[627885.099292] CPU: 0 PID: 13000 Comm: ocssd.bin Kdump: loaded Tainted: P           OE  ------------   3.10.0-1160.66.1.el7.x86_64 #1
[627885.100177] Hardware name: HPE ProLiant DL380 Gen10/ProLiant DL380 Gen10, BIOS U30 01/23/2021
[627885.100628] task: ffff9e1b845c3180 ti: ffff9e1b822d8000 task.ti: ffff9e1b822d8000
[627885.101075] RIP: 0010:[<ffffffffab7978b6>]  [<ffffffffab7978b6>] memcpy+0x6/0x110
[627885.101530] RSP: 0018:ffff9e1b822db738  EFLAGS: 00010006
[627885.101982] RAX: ffff9e1c9bbb1000 RBX: ffff9e1acb1bd610 RCX: 0000000000000500
[627885.102443] RDX: 0000000000001000 RSI: ffff9e14f1b8d000 RDI: ffff9e1c9bbb1b00
[627885.102911] RBP: ffff9e1b822db750 R08: 000000000001f1a0 R09: ffffffffab5c1545
[627885.103387] R10: 0000000000000004 R11: 0000000000000000 R12: ffff9e173f52f908
[627885.103871] R13: 0000000000000020 R14: ffff9e18f101a600 R15: ffff9e18f101a600
[627885.104360] FS:  00007f5237e7e700(0000) GS:ffff9e1cbfa00000(0000) knlGS:0000000000000000
[627885.104843] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[627885.105314] CR2: ffff9e14f1b8d000 CR3: 00000007021b8000 CR4: 00000000007607f0
[627885.105797] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[627885.106280] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[627885.106774] PKRU: 55555554
[627885.107258] Call Trace:
[627885.107747]  [<ffffffffab68b3c6>] ? __bio_clone+0x26/0x70
[627885.108248]  [<ffffffffab68d002>] bio_clone_bioset+0x32/0x70
[627885.108761]  [<ffffffffc01d1320>] ? dm_use_blk_mq+0x20/0x20 [dm_mod]
[627885.109256]  [<ffffffffab7532e3>] blk_rq_prep_clone+0x63/0x160
[627885.109743]  [<ffffffffc01d17c5>] setup_clone.constprop.14+0x35/0xa0 [dm_mod]
[627885.110239]  [<ffffffffc01d1922>] dm_old_prep_fn+0xf2/0x150 [dm_mod]
[627885.110733]  [<ffffffffab75728a>] blk_peek_request+0x17a/0x2a0
[627885.111229]  [<ffffffffc01d203c>] dm_old_request_fn+0xcc/0x210 [dm_mod]
[627885.111731]  [<ffffffffab753d09>] __blk_run_queue+0x39/0x50
[627885.112237]  [<ffffffffab753dca>] queue_unplugged+0x2a/0xa0
[627885.112747]  [<ffffffffab7576c8>] blk_flush_plug_list+0x1d8/0x230
[627885.113265]  [<ffffffffab757b34>] blk_finish_plug+0x14/0x40
[627885.113770]  [<ffffffffc0898f0d>] safd_bio_submit+0x20d/0x2a0 [oracleafd]
[627885.114266]  [<ffffffffc088e1f6>] afdq_batch_submit+0x1166/0x1450 [oracleafd]
[627885.114768]  [<ffffffffc087d766>] ? afdt_free_object+0xf6/0x150 [oracleafd]
[627885.115272]  [<ffffffffc087b08c>] ? afduhLookup+0x3c/0x120 [oracleafd]
[627885.115777]  [<ffffffffc087f0f3>] afdc_io+0xb13/0xf70 [oracleafd]
[627885.116287]  [<ffffffffc087f6ab>] afdc_dispatch_ioctl+0x15b/0x18d0 [oracleafd]
[627885.116807]  [<ffffffffab4d72bc>] ? activate_task+0x4c/0xa0
[627885.117310]  [<ffffffffab4ebefe>] ? push_rt_task+0x16e/0x250
[627885.117810]  [<ffffffffab4ebff8>] ? push_rt_tasks+0x18/0x20
[627885.118306]  [<ffffffffabb80868>] ? __balance_callback+0x58/0x5f
[627885.118790]  [<ffffffffc088118c>] afdc_execute_ioctl+0x36c/0x470 [oracleafd]
[627885.119266]  [<ffffffffab513735>] ? futex_wait+0x195/0x280
[627885.119728]  [<ffffffffab4d759f>] ? ttwu_do_wakeup+0x3f/0xe0
[627885.120179]  [<ffffffffab4dac62>] ? try_to_wake_up+0x192/0x390
[627885.120615]  [<ffffffffab512518>] ? get_futex_key+0x1c8/0x2c0
[627885.121039]  [<ffffffffc08959ac>] afd_ioctl+0x18c/0x350 [oracleafd]
[627885.121451]  [<ffffffffab76842a>] blkdev_ioctl+0x28a/0xa20
[627885.121850]  [<ffffffffab5153fa>] ? do_futex+0x12a/0x4d0
[627885.122236]  [<ffffffffab68f021>] block_ioctl+0x41/0x50
[627885.122610]  [<ffffffffab6638c0>] do_vfs_ioctl+0x3a0/0x5b0
[627885.122975]  [<ffffffffab663b51>] SyS_ioctl+0x81/0xa0
[627885.123333]  [<ffffffffab53ecd6>] ? __audit_syscall_exit+0x1f6/0x2b0
[627885.123688]  [<ffffffffabb99f92>] system_call_fastpath+0x25/0x2a
[627885.124040] Code: eb ab 31 c0 e8 dc 5f d0 ff 0f ae e8 0f 31 48 c1 e2 20 89 c0 48 09 c2 48 31 d3 e9 7b ff ff ff 90 90 90 90 90 90 48 89 f8 48 89 d1 <f3> a4 c3 03 83 e2 07 f3 48 a5 89 d1 f3 a4 c3 20 4c 8b 06 4c 8b
[627885.124829] RIP  [<ffffffffab7978b6>] memcpy+0x6/0x110
[627885.125201]  RSP <ffff9e1b822db738>
[627885.125568] CR2: ffff9e14f1b8d000