get_swap_device: Bad swap file entry 3ffffffffffdf
general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 PID: 8440 Comm: syz-fuzzer Not tainted 5.12.0-rc8-next-20210423-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:do_swap_page+0x9fa/0x2430 mm/memory.c:3349
Code: e8 bb a2 6d 07 e9 cb fa ff ff e8 01 c1 cb ff 48 8b 7c 24 10 e8 97 b7 0a 00 48 ba 00 00 00 00 00 fc ff df 48 89 c1 48 c1 e9 03 <80> 3c 11 00 0f 85 60 17 00 00 48 8b 18 31 ff 81 e3 00 10 00 00 48
RSP: 0000:ffffc9000165fc78 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff88801470c410 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: ffffffff81b3f0de RDI: 0000000000000003
RBP: ffffc9000165fd88 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff81b3f09f R11: 0000000000000000 R12: 0000000000000000
R13: ffff8880309b6200 R14: ffff88801ab21010 R15: 0000000000000002
FS:  000000c000265090(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000401ea0 CR3: 0000000022c0e000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 handle_pte_fault mm/memory.c:4371 [inline]
 __handle_mm_fault+0x1b8b/0x5150 mm/memory.c:4502
 handle_mm_fault+0x1bc/0x7e0 mm/memory.c:4600
 do_user_addr_fault+0x483/0x1210 arch/x86/mm/fault.c:1390
 handle_page_fault arch/x86/mm/fault.c:1475 [inline]
 exc_page_fault+0x9e/0x180 arch/x86/mm/fault.c:1531
 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:577
RIP: 0033:0x401ea0
Code: Unable to access opcode bytes at RIP 0x401e76.
RSP: 002b:000000c001c7d8f0 EFLAGS: 00010246
RAX: 000000c00009f600 RBX: 0000000000000001 RCX: 0000000000bde900
RDX: 0000000000085185 RSI: 0000000000000100 RDI: 0000000000000000
RBP: 000000c001c7d910 R08: 00007fbbcf82efb4 R09: 0000000000203000
R10: 0000000000000014 R11: 00000000000000fe R12: 00000000000000fe
R13: 0000000e000e000e R14: 00000000009471b8 R15: 0000000000000030
Modules linked in:
---[ end trace bc563acd075be20d ]---
RIP: 0010:do_swap_page+0x9fa/0x2430 mm/memory.c:3349
Code: e8 bb a2 6d 07 e9 cb fa ff ff e8 01 c1 cb ff 48 8b 7c 24 10 e8 97 b7 0a 00 48 ba 00 00 00 00 00 fc ff df 48 89 c1 48 c1 e9 03 <80> 3c 11 00 0f 85 60 17 00 00 48 8b 18 31 ff 81 e3 00 10 00 00 48
RSP: 0000:ffffc9000165fc78 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff88801470c410 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: ffffffff81b3f0de RDI: 0000000000000003
RBP: ffffc9000165fd88 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff81b3f09f R11: 0000000000000000 R12: 0000000000000000
R13: ffff8880309b6200 R14: ffff88801ab21010 R15: 0000000000000002
FS:  000000c000265090(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbbcf348040 CR3: 0000000022c0e000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400