page last free pid 22080 tgid 22080 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1432 [inline]
 __free_frozen_pages+0xc01/0xd80 mm/page_alloc.c:2972
 tlb_batch_list_free mm/mmu_gather.c:160 [inline]
 tlb_finish_mmu+0x144/0x230 mm/mmu_gather.c:532
 exit_mmap+0x48a/0xa00 mm/mmap.c:1315
 __mmput+0x118/0x430 kernel/fork.c:1174
 exit_mm+0x168/0x220 kernel/exit.c:581
 do_exit+0x62e/0x2310 kernel/exit.c:959
 do_group_exit+0x21b/0x2d0 kernel/exit.c:1112
 __do_sys_exit_group kernel/exit.c:1123 [inline]
 __se_sys_exit_group kernel/exit.c:1121 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1121
 x64_sys_call+0x221a/0x2240 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/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: 22079 Comm: syz.2.4408 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+0x11bc/0x1350 mm/filemap.c:858
Code: 8b c5 ff 4c 89 e7 48 c7 c6 20 a6 d7 8b e8 8c b9 27 ff 90 0f 0b e8 04 8b c5 ff 4c 89 e7 48 c7 c6 c0 9a d7 8b e8 75 b9 27 ff 90 <0f> 0b e8 ed 8a c5 ff 4c 89 e7 48 c7 c6 20 a6 d7 8b e8 5e b9 27 ff
RSP: 0018:ffffc9000e4271e0 EFLAGS: 00010246
RAX: ab874b51ac1c8b00 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000007 RSI: ffffffff8e006fa9 RDI: 00000000ffffffff
RBP: ffffc9000e427360 R08: ffffffff903342b7 R09: 1ffffffff2066856
R10: dffffc0000000000 R11: fffffbfff2066857 R12: ffffea0001249a80
R13: dffffc0000000000 R14: ffffea0001249a88 R15: 0000000000000004
FS:  00007f75f37086c0(0000) GS:ffff888125015000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6181a17dac CR3: 000000006ad86000 CR4: 00000000003526f0
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:3400
 filemap_fault+0x6e2/0x1320 mm/filemap.c:3549
 __do_fault+0x138/0x390 mm/memory.c:5365
 do_cow_fault mm/memory.c:5830 [inline]
 do_fault mm/memory.c:5936 [inline]
 do_pte_missing+0x1006/0x3750 mm/memory.c:4479
 handle_pte_fault mm/memory.c:6318 [inline]
 __handle_mm_fault mm/memory.c:6456 [inline]
 handle_mm_fault+0x1bec/0x3310 mm/memory.c:6625
 faultin_page mm/gup.c:1126 [inline]
 __get_user_pages+0x165b/0x29d0 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:3899 [inline]
 vm_mmap_pgoff+0x3aa/0x4f0 mm/util.c:586
 ksys_mmap_pgoff+0x51e/0x760 mm/mmap.c:605
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f75f279af79
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:00007f75f3708028 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f75f2a16090 RCX: 00007f75f279af79
RDX: 0000000002000007 RSI: 0000000000003000 RDI: 0000200000888000
RBP: 00007f75f28316e0 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000004002012 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f75f2a16128 R14: 00007f75f2a16090 R15: 00007ffcd3ff6e88
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__filemap_add_folio+0x11bc/0x1350 mm/filemap.c:858
Code: 8b c5 ff 4c 89 e7 48 c7 c6 20 a6 d7 8b e8 8c b9 27 ff 90 0f 0b e8 04 8b c5 ff 4c 89 e7 48 c7 c6 c0 9a d7 8b e8 75 b9 27 ff 90 <0f> 0b e8 ed 8a c5 ff 4c 89 e7 48 c7 c6 20 a6 d7 8b e8 5e b9 27 ff
RSP: 0018:ffffc9000e4271e0 EFLAGS: 00010246
RAX: ab874b51ac1c8b00 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000007 RSI: ffffffff8e006fa9 RDI: 00000000ffffffff
RBP: ffffc9000e427360 R08: ffffffff903342b7 R09: 1ffffffff2066856
R10: dffffc0000000000 R11: fffffbfff2066857 R12: ffffea0001249a80
R13: dffffc0000000000 R14: ffffea0001249a88 R15: 0000000000000004
FS:  00007f75f37086c0(0000) GS:ffff888125015000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f618184d1ee CR3: 000000006ad86000 CR4: 00000000003526f0