arch_do_signal_or_restart+0x91/0x7a0 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:64 [inline]
 exit_to_user_mode_loop+0x86/0x4a0 kernel/entry/common.c:98
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:325 [inline]
 do_syscall_64+0x67c/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
------------[ cut here ]------------
kernel BUG at mm/filemap.c:858!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 2 UID: 0 PID: 767 Comm: syz.5.9577 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:__filemap_add_folio+0xfcf/0x1280 mm/filemap.c:858
Code: 5e c5 ff 48 c7 c6 c0 2f bd 8b 4c 89 ef e8 d9 3f 12 00 90 0f 0b e8 51 5e c5 ff 48 c7 c6 20 30 bd 8b 4c 89 ef e8 c2 3f 12 00 90 <0f> 0b e8 3a 5e c5 ff 90 0f 0b 90 e9 4b fe ff ff e8 2c 5e c5 ff 90
RSP: 0018:ffffc90003e8f820 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000112cc0 RCX: 0000000000000000
RDX: ffff88802ea0c900 RSI: ffffffff82557c28 RDI: ffff88802ea0cd84
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000002 R12: 0000000000000002
R13: ffffea0000c2a4c0 R14: 0000000000000000 R15: 1ffff920007d1f2e
FS:  0000555571f60500(0000) GS:ffff8880d654d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000f6fffff8 CR3: 00000000413b4000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 filemap_add_folio+0x1d8/0x690 mm/filemap.c:966
 ra_alloc_folio mm/readahead.c:456 [inline]
 page_cache_ra_order+0x614/0xf30 mm/readahead.c:515
 do_sync_mmap_readahead mm/filemap.c:3400 [inline]
 filemap_fault+0x191a/0x2eb0 mm/filemap.c:3549
 __do_fault+0x10d/0x550 mm/memory.c:5355
 do_shared_fault mm/memory.c:5854 [inline]
 do_fault+0x2db/0x1a00 mm/memory.c:5928
 do_pte_missing mm/memory.c:4469 [inline]
 handle_pte_fault mm/memory.c:6308 [inline]
 __handle_mm_fault+0x180f/0x2b60 mm/memory.c:6446
 handle_mm_fault+0x36d/0xa20 mm/memory.c:6615
 do_user_addr_fault+0x5a3/0x12f0 arch/x86/mm/fault.c:1334
 handle_page_fault arch/x86/mm/fault.c:1474 [inline]
 exc_page_fault+0x6f/0xd0 arch/x86/mm/fault.c:1527
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618
RIP: 0033:0x7f959436c808
Code: 66 89 74 17 02 88 0f c3 c5 fa 6f 06 c5 fa 6f 4c 16 f0 c5 fa 7f 07 c5 fa 7f 4c 17 f0 c3 0f 1f 44 00 00 48 8b 4c 16 f8 48 8b 36 <48> 89 37 48 89 4c 17 f8 c3 62 e1 fe 28 6f 54 16 ff 62 e1 fe 28 6f
RSP: 002b:00007ffc82bd8718 EFLAGS: 00010246
RAX: 00002000000020c0 RBX: 0000000000000004 RCX: 0030656c69662f2e
RDX: 0000000000000008 RSI: 0030656c69662f2e RDI: 00002000000020c0
RBP: fffffffffffffffe R08: 0000001b2e220000 R09: 0000000000000001
R10: 7ffffffffffffff7 R11: 0000000000000009 R12: 00007ffc82bd8840
R13: 00007f959461609c R14: 00000000000aa4b4 R15: 00007f9594616090
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__filemap_add_folio+0xfcf/0x1280 mm/filemap.c:858
Code: 5e c5 ff 48 c7 c6 c0 2f bd 8b 4c 89 ef e8 d9 3f 12 00 90 0f 0b e8 51 5e c5 ff 48 c7 c6 20 30 bd 8b 4c 89 ef e8 c2 3f 12 00 90 <0f> 0b e8 3a 5e c5 ff 90 0f 0b 90 e9 4b fe ff ff e8 2c 5e c5 ff 90
RSP: 0018:ffffc90003e8f820 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000112cc0 RCX: 0000000000000000
RDX: ffff88802ea0c900 RSI: ffffffff82557c28 RDI: ffff88802ea0cd84
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000002 R12: 0000000000000002
R13: ffffea0000c2a4c0 R14: 0000000000000000 R15: 1ffff920007d1f2e
FS:  0000555571f60500(0000) GS:ffff8880d654d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000f6fffff8 CR3: 00000000413b4000 CR4: 0000000000352ef0