------------[ cut here ]------------
kernel BUG at include/linux/swapops.h:197!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 11998 Comm: syz-executor.5 Not tainted 5.8.0-rc5-next-20200716-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:migration_entry_to_page include/linux/swapops.h:197 [inline]
RIP: 0010:migration_entry_to_page include/linux/swapops.h:190 [inline]
RIP: 0010:pmd_migration_entry_wait+0x493/0x520 mm/migrate.c:368
Code: 4d 8d 66 ff e9 1f fe ff ff e8 b9 c4 be ff 49 8d 5f ff e9 58 fe ff ff e8 ab c4 be ff 4d 8d 66 ff e9 a9 fe ff ff e8 9d c4 be ff <0f> 0b e8 96 c4 be ff 0f 0b e8 8f c4 be ff 4c 8d 65 ff eb a7 48 89
RSP: 0000:ffffc90008b87d30 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff81b56a24
RDX: ffff8880a32bc240 RSI: ffffffff81b56b43 RDI: 0000000000000001
RBP: ffffea0008700080 R08: 0000000000000000 R09: ffffea0008700007
R10: 0000000000000000 R11: 0000000000000000 R12: ffffea0008700000
R13: ffff8880971d07e0 R14: ffffc90008e07e70 R15: ffffc90008e07e70
FS:  00000000021b1940(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200000c0 CR3: 0000000217eba000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __handle_mm_fault mm/memory.c:4349 [inline]
 handle_mm_fault+0x23cf/0x45e0 mm/memory.c:4465
 do_user_addr_fault+0x598/0xbf0 arch/x86/mm/fault.c:1294
 handle_page_fault arch/x86/mm/fault.c:1351 [inline]
 exc_page_fault+0xab/0x170 arch/x86/mm/fault.c:1404
 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:544
RIP: 0033:0x400684
Code: Bad RIP value.
RSP: 002b:00007ffd989a69d0 EFLAGS: 00010202
RAX: 0000000020000180 RBX: 0000000000000000 RCX: 00000000200000c0
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000020000180
RBP: 00000000007900f0 R08: 0000000000000000 R09: 0000000000000000
R10: 00007ffd989a6ae0 R11: 0000000000000246 R12: 00000000007900f8
R13: 0000000000000001 R14: fffffffffffffffe R15: 000000000078bfac
Modules linked in:
---[ end trace c22d80460a285444 ]---
RIP: 0010:migration_entry_to_page include/linux/swapops.h:197 [inline]
RIP: 0010:migration_entry_to_page include/linux/swapops.h:190 [inline]
RIP: 0010:pmd_migration_entry_wait+0x493/0x520 mm/migrate.c:368
Code: 4d 8d 66 ff e9 1f fe ff ff e8 b9 c4 be ff 49 8d 5f ff e9 58 fe ff ff e8 ab c4 be ff 4d 8d 66 ff e9 a9 fe ff ff e8 9d c4 be ff <0f> 0b e8 96 c4 be ff 0f 0b e8 8f c4 be ff 4c 8d 65 ff eb a7 48 89
RSP: 0000:ffffc90008b87d30 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff81b56a24
RDX: ffff8880a32bc240 RSI: ffffffff81b56b43 RDI: 0000000000000001
RBP: ffffea0008700080 R08: 0000000000000000 R09: ffffea0008700007
R10: 0000000000000000 R11: 0000000000000000 R12: ffffea0008700000
R13: ffff8880971d07e0 R14: ffffc90008e07e70 R15: ffffc90008e07e70
FS:  00000000021b1940(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200000c0 CR3: 0000000217eba000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400