raw: 0000000000000000 0000000000000000 0000000400000000 ffff0000d07d4000
page dumped because: VM_BUG_ON_FOLIO(folio_mapped(folio))
------------[ cut here ]------------
kernel BUG at mm/filemap.c:153!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 4691 Comm: syz.4.61 Not tainted 6.1.142-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
pstate: 804000c5 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : filemap_unaccount_folio+0x464/0x50c mm/filemap.c:153
lr : filemap_unaccount_folio+0x464/0x50c mm/filemap.c:153
sp : ffff8000211271c0
x29: ffff8000211271d0 x28: ffff800021127540 x27: dfff800000000000
x26: ffff700004224e4c x25: 0000000000000001 x24: ffff800021127540
x23: ffff800021127280 x22: ffff0000fae77b58 x21: fffffc000384c7d8
x20: ffff0000fae77b58 x19: fffffc000384c7c0 x18: ffff800011a8bce0
x17: 0000000000000000 x16: ffff8000082e7c3c x15: 0000000000000000
x14: 0000000000000000 x13: 1ffff00002a100b1 x12: 0000000000ff0100
x11: ff008000087ae04c x10: 0000000000000000 x9 : ffff8000087ae04c
x8 : ffff0000da7cb780 x7 : ffff80000830ccc8 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : ffff8000082e7d50
x2 : 0000000000000001 x1 : 0000000100000002 x0 : 0000000000000039
Call trace:
 filemap_unaccount_folio+0x464/0x50c mm/filemap.c:153
 __filemap_remove_folio+0xc0/0x4d4 mm/filemap.c:222
 filemap_remove_folio+0xcc/0x1bc mm/filemap.c:255
 truncate_inode_folio+0x6c/0x84 mm/truncate.c:195
 shmem_undo_range+0x400/0x1610 mm/shmem.c:942
 shmem_truncate_range mm/shmem.c:1062 [inline]
 shmem_evict_inode+0x204/0x8a0 mm/shmem.c:1171
 evict+0x3c8/0x810 fs/inode.c:705
 iput_final fs/inode.c:1834 [inline]
 iput+0x764/0x7f4 fs/inode.c:1860
 dentry_unlink_inode+0x360/0x438 fs/dcache.c:405
 __dentry_kill+0x320/0x598 fs/dcache.c:611
 dentry_kill+0xc8/0x248 fs/dcache.c:-1
 dput+0x238/0x454 fs/dcache.c:918
 __fput+0x480/0x7c0 fs/file_table.c:328
 ____fput+0x20/0x30 fs/file_table.c:348
 task_work_run+0x1ec/0x270 kernel/task_work.c:203
 exit_task_work include/linux/task_work.h:39 [inline]
 do_exit+0x54c/0x19a8 kernel/exit.c:880
 __do_sys_exit kernel/exit.c:989 [inline]
 __se_sys_exit kernel/exit.c:987 [inline]
 do_group_exit+0x0/0x22c kernel/exit.c:987
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x138 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
Code: f004a1a1 911c0021 aa1303e0 94037abd (d4210000) 
---[ end trace 0000000000000000 ]---