process_one_work kernel/workqueue.c:3302 [inline]
 process_scheduled_works+0xb5d/0x1860 kernel/workqueue.c:3385
 worker_thread+0xa53/0xfc0 kernel/workqueue.c:3466
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
------------[ cut here ]------------
kernel BUG at mm/filemap.c:860!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 22336 Comm: syz.9.5601 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/0x1330 mm/filemap.c:859
Code: 30 c3 ff 4c 89 e7 48 c7 c6 20 b6 d7 8b e8 ec 92 25 ff 90 0f 0b e8 44 30 c3 ff 4c 89 e7 48 c7 c6 80 aa d7 8b e8 d5 92 25 ff 90 <0f> 0b e8 2d 30 c3 ff 4c 89 e7 48 c7 c6 20 b6 d7 8b e8 be 92 25 ff
RSP: 0018:ffffc900044a71e0 EFLAGS: 00010246
RAX: bd4c15bc81ed7100 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000007 RSI: ffffffff8dfd403e RDI: 00000000ffffffff
RBP: ffffc900044a7360 R08: ffffffff903353f7 R09: 1ffffffff2066a7e
R10: dffffc0000000000 R11: fffffbfff2066a7f R12: ffffea00014b0980
R13: dffffc0000000000 R14: ffffea00014b0988 R15: 0000000000000004
FS:  00007f3bd3bff6c0(0000) GS:ffff88812521e000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f168be4edd5 CR3: 000000002cb09000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 filemap_add_folio+0x264/0x530 mm/filemap.c:967
 ra_alloc_folio mm/readahead.c:456 [inline]
 page_cache_ra_order+0x6a9/0xe80 mm/readahead.c:515
 do_sync_mmap_readahead+0x6ad/0x8e0 mm/filemap.c:3406
 filemap_fault+0x703/0x1300 mm/filemap.c:3555
 __do_fault+0x138/0x2a0 mm/memory.c:5458
 do_read_fault mm/memory.c:5893 [inline]
 do_fault mm/memory.c:6027 [inline]
 do_pte_missing+0x2093/0x33f0 mm/memory.c:4550
 handle_pte_fault mm/memory.c:6411 [inline]
 __handle_mm_fault mm/memory.c:6549 [inline]
 handle_mm_fault+0x1bd7/0x3170 mm/memory.c:6718
 faultin_page mm/gup.c:1126 [inline]
 __get_user_pages+0x1683/0x2720 mm/gup.c:1428
 populate_vma_page_range+0x2be/0x3c0 mm/gup.c:1860
 __mm_populate+0x25f/0x390 mm/gup.c:1963
 mm_populate include/linux/mm.h:4137 [inline]
 vm_mmap_pgoff+0x3aa/0x4f0 mm/util.c:586
 ksys_mmap_pgoff+0x51e/0x760 mm/mmap.c:606
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3bd2d9c819
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f3bd3bff028 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f3bd3016090 RCX: 00007f3bd2d9c819
RDX: 0000000001000005 RSI: 0000000000b36000 RDI: 0000200000000000
RBP: 00007f3bd2e32c91 R08: 0000000000000004 R09: 000000000c3af000
R10: 0000000000028011 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f3bd3016128 R14: 00007f3bd3016090 R15: 00007ffe38706928
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__filemap_add_folio+0x11bc/0x1330 mm/filemap.c:859
Code: 30 c3 ff 4c 89 e7 48 c7 c6 20 b6 d7 8b e8 ec 92 25 ff 90 0f 0b e8 44 30 c3 ff 4c 89 e7 48 c7 c6 80 aa d7 8b e8 d5 92 25 ff 90 <0f> 0b e8 2d 30 c3 ff 4c 89 e7 48 c7 c6 20 b6 d7 8b e8 be 92 25 ff
RSP: 0018:ffffc900044a71e0 EFLAGS: 00010246
RAX: bd4c15bc81ed7100 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000007 RSI: ffffffff8dfd403e RDI: 00000000ffffffff
RBP: ffffc900044a7360 R08: ffffffff903353f7 R09: 1ffffffff2066a7e
R10: dffffc0000000000 R11: fffffbfff2066a7f R12: ffffea00014b0980
R13: dffffc0000000000 R14: ffffea00014b0988 R15: 0000000000000004
FS:  00007f3bd3bff6c0(0000) GS:ffff88812531e000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f168bfeb4b8 CR3: 000000002cb09000 CR4: 0000000000350ef0