asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
------------[ cut here ]------------
kernel BUG at mm/filemap.c:859!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 13712 Comm: syz.0.2123 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
RIP: 0010:__filemap_add_folio+0x11bc/0x1350 mm/filemap.c:858
Code: 2a c5 ff 4c 89 e7 48 c7 c6 40 ae d7 8b e8 3c 86 27 ff 90 0f 0b e8 74 2a c5 ff 4c 89 e7 48 c7 c6 e0 a2 d7 8b e8 25 86 27 ff 90 <0f> 0b e8 5d 2a c5 ff 4c 89 e7 48 c7 c6 40 ae d7 8b e8 0e 86 27 ff
RSP: 0018:ffffc900106cf5c0 EFLAGS: 00010246
RAX: bf5272a4b129fe00 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000007 RSI: ffffffff8defbe6a RDI: 00000000ffffffff
RBP: ffffc900106cf740 R08: ffffffff9011dbb7 R09: 1ffffffff2023b76
R10: dffffc0000000000 R11: fffffbfff2023b77 R12: ffffea0001848cc0
R13: dffffc0000000000 R14: ffffea0001848cc8 R15: 0000000000000004
FS:  000055557cef5500(0000) GS:ffff888125454000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c44699c CR3: 00000000227d3000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 filemap_add_folio+0x264/0x530 mm/filemap.c:966
 ra_alloc_folio mm/readahead.c:456 [inline]
 page_cache_ra_order+0x6b5/0xeb0 mm/readahead.c:515
 do_sync_mmap_readahead+0x6ad/0x8e0 mm/filemap.c:3405
 filemap_fault+0x6e2/0x1320 mm/filemap.c:3554
 __do_fault+0x138/0x390 mm/memory.c:5364
 do_shared_fault mm/memory.c:5863 [inline]
 do_fault mm/memory.c:5937 [inline]
 do_pte_missing+0x5c4/0x3490 mm/memory.c:4477
 handle_pte_fault mm/memory.c:6317 [inline]
 __handle_mm_fault mm/memory.c:6455 [inline]
 handle_mm_fault+0x1bec/0x3310 mm/memory.c:6624
 do_user_addr_fault+0xa73/0x1340 arch/x86/mm/fault.c:1334
 handle_page_fault arch/x86/mm/fault.c:1474 [inline]
 exc_page_fault+0x6a/0xc0 arch/x86/mm/fault.c:1527
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618
RIP: 0033:0x7f8f4c465f62
Code: 30 48 8b 14 24 48 85 d2 74 17 8b 44 24 10 0f c8 89 c0 48 89 44 24 10 48 83 fa 01 0f 85 aa 02 00 00 48 8b 44 24 18 8b 74 24 10 <89> 30 e9 1e fe ff ff 48 8b 44 24 18 8b 10 48 8b 04 24 48 85 c0 0f
RSP: 002b:00007ffd98c186d0 EFLAGS: 00010246
RAX: 0000200000000380 RBX: 0000000000000004 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 000055557cef53d8
RBP: 00007ffd98c187f0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 00007ffd98c18830
R13: 00007f8f4c81627c R14: 00000000000856be R15: 00007f8f4c816270
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__filemap_add_folio+0x11bc/0x1350 mm/filemap.c:858
Code: 2a c5 ff 4c 89 e7 48 c7 c6 40 ae d7 8b e8 3c 86 27 ff 90 0f 0b e8 74 2a c5 ff 4c 89 e7 48 c7 c6 e0 a2 d7 8b e8 25 86 27 ff 90 <0f> 0b e8 5d 2a c5 ff 4c 89 e7 48 c7 c6 40 ae d7 8b e8 0e 86 27 ff
RSP: 0018:ffffc900106cf5c0 EFLAGS: 00010246
RAX: bf5272a4b129fe00 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000007 RSI: ffffffff8defbe6a RDI: 00000000ffffffff
RBP: ffffc900106cf740 R08: ffffffff9011dbb7 R09: 1ffffffff2023b76