do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
------------[ cut here ]------------
kernel BUG at mm/filemap.c:859!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 11384 Comm: syz.2.1922 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:__filemap_add_folio+0x118b/0x12d0 mm/filemap.c:858
Code: 89 c7 ff 4c 89 e7 48 c7 c6 40 b4 94 8b e8 bd 9c 2d ff 90 0f 0b e8 b5 89 c7 ff 4c 89 e7 48 c7 c6 20 ab 94 8b e8 a6 9c 2d ff 90 <0f> 0b e8 9e 89 c7 ff 4c 89 e7 48 c7 c6 40 b4 94 8b e8 8f 9c 2d ff
RSP: 0018:ffffc9000b3a75c0 EFLAGS: 00010246
RAX: b04a10851b778100 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000007 RSI: ffffffff8daa9dc3 RDI: 00000000ffffffff
RBP: ffffc9000b3a7740 R08: ffffffff8fc3d077 R09: 1ffffffff1f87a0e
R10: dffffc0000000000 R11: fffffbfff1f87a0f R12: ffffea00011ae340
R13: dffffc0000000000 R14: ffffea00011ae348 R15: 0000000000000004
FS:  000055555a88c500(0000) GS:ffff8881259dc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000002d2030 CR3: 0000000055e4e000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 filemap_add_folio+0x26d/0x540 mm/filemap.c:966
 ra_alloc_folio mm/readahead.c:453 [inline]
 page_cache_ra_order+0x6a7/0xe50 mm/readahead.c:512
 do_sync_mmap_readahead+0x66a/0x870 mm/filemap.c:3400
 filemap_fault+0x6ac/0x1290 mm/filemap.c:3549
 __do_fault+0x138/0x390 mm/memory.c:5320
 do_shared_fault mm/memory.c:5819 [inline]
 do_fault mm/memory.c:5893 [inline]
 do_pte_missing+0x6aa/0x3330 mm/memory.c:4401
 handle_pte_fault mm/memory.c:6273 [inline]
 __handle_mm_fault mm/memory.c:6411 [inline]
 handle_mm_fault+0x1b26/0x32b0 mm/memory.c:6580
 do_user_addr_fault+0xa7c/0x1380 arch/x86/mm/fault.c:1336
 handle_page_fault arch/x86/mm/fault.c:1476 [inline]
 exc_page_fault+0x82/0x100 arch/x86/mm/fault.c:1532
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618
RIP: 0033:0x7fb9c2557398
Code: fc 89 37 c3 c5 fa 6f 06 c5 fa 6f 4c 16 f0 c5 fa 7f 07 c5 fa 7f 4c 17 f0 c3 66 0f 1f 84 00 00 00 00 00 48 8b 4c 16 f8 48 8b 36 <48> 89 37 48 89 4c 17 f8 c3 c5 fe 6f 54 16 e0 c5 fe 6f 5c 16 c0 c5
RSP: 002b:00007ffd7a88c9d8 EFLAGS: 00010206
RAX: 0000200000000300 RBX: 0000000000000004 RCX: 0023757363762f76
RDX: 000000000000000b RSI: 7363762f7665642f RDI: 0000200000000300
RBP: 00007fb9c27e7da0 R08: 0000001b2ff20000 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000009 R12: 00007fb9c27e627c
R13: 00007fb9c27e6270 R14: fffffffffffffffe R15: 00007ffd7a88caf0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__filemap_add_folio+0x118b/0x12d0 mm/filemap.c:858
Code: 89 c7 ff 4c 89 e7 48 c7 c6 40 b4 94 8b e8 bd 9c 2d ff 90 0f 0b e8 b5 89 c7 ff 4c 89 e7 48 c7 c6 20 ab 94 8b e8 a6 9c 2d ff 90 <0f> 0b e8 9e 89 c7 ff 4c 89 e7 48 c7 c6 40 b4 94 8b e8 8f 9c 2d ff
RSP: 0018:ffffc9000b3a75c0 EFLAGS: 00010246
RAX: b04a10851b778100 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000007 RSI: ffffffff8daa9dc3 RDI: 00000000ffffffff
RBP: ffffc9000b3a7740 R08: ffffffff8fc3d077 R09: 1ffffffff1f87a0e
R10: dffffc0000000000 R11: fffffbfff1f87a0f R12: ffffea00011ae340
R13: dffffc0000000000 R14: ffffea00011ae348 R15: 0000000000000004
FS:  000055555a88c500(0000) GS:ffff8881259dc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000404030 CR3: 0000000055e4e000 CR4: 00000000003526f0