page last free pid 23341 tgid 23340 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1433 [inline]
 free_unref_folios+0xb2a/0x1760 mm/page_alloc.c:3030
 folios_put_refs+0x53c/0x840 mm/swap.c:1002
 folio_batch_release include/linux/pagevec.h:101 [inline]
 truncate_inode_pages_range+0x30c/0x1050 mm/truncate.c:408
 kill_bdev block/bdev.c:91 [inline]
 set_blocksize+0x2bc/0x510 block/bdev.c:207
 blkdev_bszset+0x19b/0x240 block/ioctl.c:635
 blkdev_ioctl+0x513/0x6f0 block/ioctl.c:774
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl fs/ioctl.c:583 [inline]
 __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xc9/0xf80 arch/x86/entry/syscall_64.c:94
 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: 1 UID: 0 PID: 23342 Comm: syz.4.4469 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
RIP: 0010:__filemap_add_folio+0xf7f/0x1220 mm/filemap.c:858
Code: c9 c6 ff 48 c7 c6 a0 18 9d 8b 4c 89 ef e8 99 0d 12 00 90 0f 0b e8 51 c9 c6 ff 48 c7 c6 00 19 9d 8b 4c 89 ef e8 82 0d 12 00 90 <0f> 0b e8 3a c9 c6 ff 90 0f 0b 90 e9 9b fe ff ff e8 2c c9 c6 ff 90
RSP: 0018:ffffc90017bd7458 EFLAGS: 00010246
RAX: 0000000000080000 RBX: 0000000000112c00 RCX: ffffc90011926000
RDX: 0000000000080000 RSI: ffffffff82524068 RDI: ffff88801df5a944
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 1ffffffff1cbde81 R12: 0000000000000004
R13: ffffea0000c99d40 R14: 0000000000000000 R15: 1ffff92002f7aeb5
FS:  00007f648e83a6c0(0000) GS:ffff8881246d9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0f41ca1298 CR3: 0000000059d8b000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 filemap_add_folio+0x1d8/0x690 mm/filemap.c:966
 ra_alloc_folio mm/readahead.c:453 [inline]
 page_cache_ra_order+0x614/0xfe0 mm/readahead.c:512
 do_sync_mmap_readahead mm/filemap.c:3400 [inline]
 filemap_fault+0x1b56/0x37c0 mm/filemap.c:3549
 __do_fault+0x10d/0x550 mm/memory.c:5323
 do_read_fault mm/memory.c:5758 [inline]
 do_fault+0xaf9/0x1990 mm/memory.c:5892
 do_pte_missing mm/memory.c:4404 [inline]
 handle_pte_fault mm/memory.c:6276 [inline]
 __handle_mm_fault+0x1807/0x2b50 mm/memory.c:6414
 handle_mm_fault+0x36d/0xa20 mm/memory.c:6583
 faultin_page mm/gup.c:1126 [inline]
 __get_user_pages+0xf9c/0x34d0 mm/gup.c:1428
 populate_vma_page_range+0x267/0x3f0 mm/gup.c:1860
 __mm_populate+0x107/0x3a0 mm/gup.c:1963
 mm_populate include/linux/mm.h:3705 [inline]
 vm_mmap_pgoff+0x37f/0x470 mm/util.c:586
 ksys_mmap_pgoff+0x328/0x5b0 mm/mmap.c:604
 __do_sys_mmap arch/x86/kernel/sys_x86_64.c:89 [inline]
 __se_sys_mmap arch/x86/kernel/sys_x86_64.c:82 [inline]
 __x64_sys_mmap+0x125/0x190 arch/x86/kernel/sys_x86_64.c:82
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xc9/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f648d99aeb9
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:00007f648e83a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f648dc16090 RCX: 00007f648d99aeb9
RDX: 0000000001000002 RSI: 0000000000b36000 RDI: 0000200000000000
RBP: 00007f648da08c1f R08: 0000000000000004 R09: 000000002c93a000
R10: 0000000000028011 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f648dc16128 R14: 00007f648dc16090 R15: 00007ffdcad732c8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__filemap_add_folio+0xf7f/0x1220 mm/filemap.c:858
Code: c9 c6 ff 48 c7 c6 a0 18 9d 8b 4c 89 ef e8 99 0d 12 00 90 0f 0b e8 51 c9 c6 ff 48 c7 c6 00 19 9d 8b 4c 89 ef e8 82 0d 12 00 90 <0f> 0b e8 3a c9 c6 ff 90 0f 0b 90 e9 9b fe ff ff e8 2c c9 c6 ff 90
RSP: 0018:ffffc90017bd7458 EFLAGS: 00010246
RAX: 0000000000080000 RBX: 0000000000112c00 RCX: ffffc90011926000
RDX: 0000000000080000 RSI: ffffffff82524068 RDI: ffff88801df5a944
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 1ffffffff1cbde81 R12: 0000000000000004
R13: ffffea0000c99d40 R14: 0000000000000000 R15: 1ffff92002f7aeb5
FS:  00007f648e83a6c0(0000) GS:ffff8881246d9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0f41ca1298 CR3: 0000000059d8b000 CR4: 00000000003526f0