------------[ cut here ]------------ kernel BUG at include/linux/swapops.h:197! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 11909 Comm: syz-executor.2 Not tainted 5.8.0-rc6-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 39 20 bf ff 49 8d 5f ff e9 58 fe ff ff e8 2b 20 bf ff 4d 8d 66 ff e9 a9 fe ff ff e8 1d 20 bf ff <0f> 0b e8 16 20 bf ff 0f 0b e8 0f 20 bf ff 4c 8d 65 ff eb a7 48 89 RSP: 0000:ffffc900034b7d30 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff81b49b54 RDX: ffff8880929c2500 RSI: ffffffff81b49c73 RDI: 0000000000000001 RBP: ffffea00084e8080 R08: 0000000000000000 R09: ffffea00084e8087 R10: 0000000000000000 R11: 0000000000000000 R12: ffffea00084e8080 R13: ffff8880a33d1c00 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000e04940(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000700 CR3: 0000000214866000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __handle_mm_fault mm/memory.c:4339 [inline] handle_mm_fault+0x2220/0x43f0 mm/memory.c:4394 do_user_addr_fault+0x5a2/0xd00 arch/x86/mm/fault.c:1295 handle_page_fault arch/x86/mm/fault.c:1365 [inline] exc_page_fault+0xab/0x170 arch/x86/mm/fault.c:1418 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:542 RIP: 0033:0x400604 Code: Bad RIP value. RSP: 002b:00007ffe39bfd540 EFLAGS: 00010202 RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000020000700 RDI: 0000000000000001 RBP: 0000000000790198 R08: 0000000000000000 R09: 0000000000000000 R10: 00007ffe39bfd650 R11: 0000000000000246 R12: 00000000007901a0 R13: 0000000000000000 R14: fffffffffffffffe R15: 000000000078bf0c Modules linked in: ---[ end trace 4e96b38f190e325d ]--- 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 39 20 bf ff 49 8d 5f ff e9 58 fe ff ff e8 2b 20 bf ff 4d 8d 66 ff e9 a9 fe ff ff e8 1d 20 bf ff <0f> 0b e8 16 20 bf ff 0f 0b e8 0f 20 bf ff 4c 8d 65 ff eb a7 48 89 RSP: 0000:ffffc900034b7d30 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff81b49b54 RDX: ffff8880929c2500 RSI: ffffffff81b49c73 RDI: 0000000000000001 RBP: ffffea00084e8080 R08: 0000000000000000 R09: ffffea00084e8087 R10: 0000000000000000 R11: 0000000000000000 R12: ffffea00084e8080 R13: ffff8880a33d1c00 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000e04940(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000700 CR3: 0000000214866000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400