"Bad swap file entry" message followed by NULL pointer dereference crash

Issue

• "Bad swap file entry" message followed by NULL pointer dereference crash

[128058.013470] get_swap_device: Bad swap file entry 4003fffffb3cc403
[128058.013487] BUG: unable to handle kernel NULL pointer dereference at 0000000000000000
[128058.015844] PGD bf8a4f067 P4D bf8a4f067 PUD 0 
[128058.017745] Oops: 0000 [#1] SMP NOPTI
[128058.019549] CPU: 14 PID: 2903458 Comm: ScanTask execut Kdump: loaded Tainted: P           OE    --------- -  - 4.18.0-477.15.1.el8_8.x86_64 #1
[128058.021411] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 11/12/2020
[128058.022558] RIP: 0010:do_swap_page+0x432/0x710
[128058.023701] Code: 41 83 ce 08 e9 92 fe ff ff 48 8b 1c 24 48 89 df e8 73 ce fb ff 48 89 df e8 3b b7 ff ff e9 30 ff ff ff 4c 89 ef e8 1e eb 02 00 <48> 8b 00 f6 c4 08 74 11 4c 89 ef e8 4e ab 02 00 83 f8 01 0f 84 6a
[128058.026134] RSP: 0000:ffffae84e7cfbd98 EFLAGS: 00010246
[128058.027329] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[128058.028543] RDX: 0000000000000000 RSI: ffff8b612fd9e698 RDI: 0000000000000010
[128058.029724] RBP: ffffae84e7cfbdf8 R08: 0000000000000000 R09: c0000000ffff7fff
[128058.030875] R10: 0000000000000001 R11: ffffae84e7cfbb90 R12: ffff8b58c058b6a8
[128058.031773] R13: 4003fffffb3cc403 R14: 00007fde24000000 R15: 0000000000000254
[128058.032381] FS:  00007fde38ce0700(0000) GS:ffff8b612fd80000(0000) knlGS:0000000000000000
[128058.032998] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[128058.033622] CR2: 0000000000000000 CR3: 0000000c171ae001 CR4: 00000000007706e0
[128058.034274] PKRU: 55555554
[128058.034907] Call Trace:
[128058.035531]  ? pmd_devmap_trans_unstable+0x2e/0x40
[128058.036165]  ? handle_pte_fault+0x5d/0x880
[128058.036826]  __handle_mm_fault+0x453/0x6c0
[128058.037437]  handle_mm_fault+0xca/0x2a0
[128058.038042]  __do_page_fault+0x1f0/0x450
[128058.038642]  do_page_fault+0x37/0x130
[128058.039268]  ? page_fault+0x8/0x30
[128058.039876]  page_fault+0x1e/0x30
[128058.040465] RIP: 0033:0x7fdee437ee73
[128058.041053] Code: a8 02 75 3b 48 8b 15 14 2f 32 00 64 48 83 3a 00 0f 84 a1 00 00 00 48 8d 3d 5a 3d 32 00 a8 04 74 0c 48 89 f0 48 25 00 00 00 fc <48> 8b 38 48 83 c4 10 31 d2 5b e9 ce c9 ff ff 66 0f 1f 44 00 00 8b
[128058.042307] RSP: 002b:00007fde38cde5f0 EFLAGS: 00010206
[128058.042949] RAX: 00007fde24000000 RBX: 00007fdedd4a1800 RCX: 0000000000000002
[128058.043580] RDX: ffffffffffffffb0 RSI: 00007fde241859f0 RDI: 00007fdee46a2bc0
[128058.044247] RBP: 00007fde38cde630 R08: 0000000000000000 R09: 00007fddf00008d0
[128058.044874] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[128058.045489] R13: 00007fde24185a00 R14: 00007fde38cde898 R15: 00007fde24185a00
[128058.046117] Modules linked in: [...]
    ...
[128058.052060] Red Hat flags: eBPF/rawtrace
[128058.052813] CR2: 0000000000000000