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kernel BUG at mm/memory.c:4481!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 8433 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:__handle_mm_fault+0xcc9/0x5150 mm/memory.c:4481
Code: 48 83 fd 1c 0f 84 29 0e 00 00 e8 72 39 cb ff 89 ee bf 1d 00 00 00 e8 16 41 cb ff 48 83 fd 1d 0f 84 0e 0e 00 00 e8 57 39 cb ff <0f> 0b e8 50 39 cb ff 48 8b 54 24 10 48 89 de 48 8b 7c 24 20 e8 be
RSP: 0000:ffffc900019d7d00 EFLAGS: 00010293
RAX: 0000000000000000 RBX: fff0000000000fff RCX: 0000000000000000
RDX: ffff88801be0d580 RSI: ffffffff81a9c019 RDI: 0000000000000003
RBP: 0000000000000000 R08: 000000000000001d R09: 0000000000000000
R10: ffffffff81a9c00a R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: ffff888027b90108
FS:  000000c00002e490(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c00002e488 CR3: 000000001e00b000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 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: 0033:0x46746e
Code: fd ff 48 8b 6c 24 10 48 83 c4 18 c3 cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc 48 83 ec 28 48 89 6c 24 20 48 8d 6c 24 20 <64> 48 8b 04 25 f8 ff ff ff 48 8b 48 30 ff 81 08 01 00 00 48 8d 4c
RSP: 002b:000000c000303820 EFLAGS: 00010202
RAX: 0000000000001000 RBX: 000000c00001e800 RCX: 00000000004af19b
RDX: 0000000000001000 RSI: 000000c0001dc000 RDI: 0000000000000006
RBP: 000000c000303840 R08: 0000000000000001 R09: 0000000000000002
R10: 0000000000003980 R11: 0000000000000206 R12: ffffffffffffffff
R13: 0000000000001000 R14: 0000000000000020 R15: 0000000000000004
Modules linked in:
---[ end trace f231af37b55487ce ]---
RIP: 0010:__handle_mm_fault+0xcc9/0x5150 mm/memory.c:4481
Code: 48 83 fd 1c 0f 84 29 0e 00 00 e8 72 39 cb ff 89 ee bf 1d 00 00 00 e8 16 41 cb ff 48 83 fd 1d 0f 84 0e 0e 00 00 e8 57 39 cb ff <0f> 0b e8 50 39 cb ff 48 8b 54 24 10 48 89 de 48 8b 7c 24 20 e8 be
RSP: 0000:ffffc900019d7d00 EFLAGS: 00010293
RAX: 0000000000000000 RBX: fff0000000000fff RCX: 0000000000000000
RDX: ffff88801be0d580 RSI: ffffffff81a9c019 RDI: 0000000000000003
RBP: 0000000000000000 R08: 000000000000001d R09: 0000000000000000