kernel BUG at ./include/linux/pagemap.h:1398!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 14808 Comm: syz.8.1839 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:mpage_readahead+0x637/0x650
Code: c6 20 f9 99 8b e8 49 2d e1 fe 90 0f 0b e8 91 ee 78 ff 4c 89 ef 48 c7 c6 80 f9 99 8b e8 32 2d e1 fe 90 0f 0b e8 7a ee 78 ff 90 <0f> 0b e8 72 ee 78 ff 90 0f 0b 66 66 66 66 66 66 2e 0f 1f 84 00 00
RSP: 0018:ffffc90002f8ef60 EFLAGS: 00010246
RAX: ffffffff8246cee6 RBX: 0000000000000001 RCX: 0000000000080000
RDX: ffffc90020c2c000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffffc90002f8f150 R08: ffffea0000936407 R09: 1ffffd4000126c80
R10: dffffc0000000000 R11: fffff94000126c81 R12: dffffc0000000000
R13: ffffc90002f8f3c8 R14: 0000000000000004 R15: ffffc90002f8f3e0
FS:  00007f38f2fe06c0(0000) GS:ffff8880b8615000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6d2b7f6fc8 CR3: 00000000383c0000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 read_pages+0x17a/0x580
 page_cache_ra_unbounded+0x346/0x7b0
 do_sync_mmap_readahead+0x25e/0x7a0
 filemap_fault+0x62c/0x1200
 __do_fault+0x138/0x390
 __handle_mm_fault+0x3611/0x5440
 handle_mm_fault+0x40a/0x8e0
 do_user_addr_fault+0x764/0x1390
 exc_page_fault+0x76/0xf0
 asm_exc_page_fault+0x26/0x30
RIP: 0010:rep_movs_alternative+0x30/0x90
Code: 83 f9 08 73 25 85 c9 74 0f 8a 06 88 07 48 ff c7 48 ff c6 48 ff c9 75 f1 e9 8d 0a 04 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 <48> 8b 06 48 89 07 48 83 c6 08 48 83 c7 08 83 e9 08 74 db 83 f9 08
RSP: 0018:ffffc90002f8fa18 EFLAGS: 00010206
RAX: 00007ffffffff001 RBX: 0000000000000038 RCX: 0000000000000038
RDX: 0000000000000001 RSI: 000020000023e000 RDI: ffffc90002f8faa0
RBP: ffffc90002f8fc30 R08: ffffc90002f8fad7 R09: 1ffff920005f1f5a
R10: dffffc0000000000 R11: fffff520005f1f5b R12: 0000000000000002
R13: dffffc0000000000 R14: ffffc90002f8faa0 R15: 000020000023e000
 _copy_from_user+0x7a/0xb0
 ___sys_recvmsg+0x12e/0x510
 do_recvmmsg+0x307/0x770
 __x64_sys_recvmmsg+0x190/0x240
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f38f218eba9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f38f2fe0038 EFLAGS: 00000246
 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007f38f23d6090 RCX: 00007f38f218eba9
RDX: 0000000000010106 RSI: 00002000000000c0 RDI: 0000000000000005
RBP: 00007f38f2211e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f38f23d6128 R14: 00007f38f23d6090 R15: 00007ffc591f8f48
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:mpage_readahead+0x637/0x650
Code: c6 20 f9 99 8b e8 49 2d e1 fe 90 0f 0b e8 91 ee 78 ff 4c 89 ef 48 c7 c6 80 f9 99 8b e8 32 2d e1 fe 90 0f 0b e8 7a ee 78 ff 90 <0f> 0b e8 72 ee 78 ff 90 0f 0b 66 66 66 66 66 66 2e 0f 1f 84 00 00
RSP: 0018:ffffc90002f8ef60 EFLAGS: 00010246
RAX: ffffffff8246cee6 RBX: 0000000000000001 RCX: 0000000000080000
RDX: ffffc90020c2c000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffffc90002f8f150 R08: ffffea0000936407 R09: 1ffffd4000126c80
R10: dffffc0000000000 R11: fffff94000126c81 R12: dffffc0000000000
R13: ffffc90002f8f3c8 R14: 0000000000000004 R15: ffffc90002f8f3e0
FS:  00007f38f2fe06c0(0000) GS:ffff8880b8615000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2e809ff8 CR3: 00000000383c0000 CR4: 00000000000006f0
