REISERFS warning (device loop4): vs-13060 reiserfs_update_sd_size: stat data of object [1 2 0x0 UNKNOWN] (nlink == 1) not found (pos 2)
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kernel BUG at fs/reiserfs/journal.c:505!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 4791 Comm: syz.4.90 Not tainted 6.1.148-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : reiserfs_in_journal+0x97c/0x980 fs/reiserfs/journal.c:505
lr : reiserfs_in_journal+0x97c/0x980 fs/reiserfs/journal.c:505
sp : ffff800020736d50
x29: ffff800020736d80 x28: ffff800021079000 x27: 1fffe0001b9628cf
x26: dfff800000000000 x25: 0000000000000000 x24: 0000000000000000
x23: ffff800020639048 x22: ffff800020639050 x21: 0000000000000213
x20: ffff0000dcb14678 x19: ffff0000dcb14000 x18: 0000000000000000
x17: 0000000000000000 x16: ffff8000082d0ec0 x15: 0000000000000002
x14: 0000000000000002 x13: 0000000000ff0100 x12: 0000000000080000
x11: 0000000000001ac9 x10: ffff80002a130000 x9 : ffff800008cc9844
x8 : 0000000000001aca x7 : ffff800008ce98e0 x6 : 0000000000000000
x5 : 0000000000000001 x4 : ffff800020736e80 x3 : 0000000000000001
x2 : 0000000000000213 x1 : 0000000000000213 x0 : 0000000000000213
Call trace:
 reiserfs_in_journal+0x97c/0x980 fs/reiserfs/journal.c:505
 is_block_in_journal fs/reiserfs/bitmap.c:125 [inline]
 scan_bitmap_block+0x3e0/0xc28 fs/reiserfs/bitmap.c:203
 scan_bitmap fs/reiserfs/bitmap.c:408 [inline]
 allocate_without_wrapping_disk fs/reiserfs/bitmap.c:1161 [inline]
 blocknrs_and_prealloc_arrays_from_search_start fs/reiserfs/bitmap.c:1274 [inline]
 reiserfs_allocate_blocknrs+0x247c/0x4134 fs/reiserfs/bitmap.c:1375
 _allocate_block fs/reiserfs/inode.c:-1 [inline]
 reiserfs_get_block+0x1d64/0x3524 fs/reiserfs/inode.c:756
 __block_write_begin_int+0x34c/0x13b8 fs/buffer.c:1991
 __block_write_begin+0x7c/0xa0 fs/buffer.c:2041
 reiserfs_write_begin+0x328/0x71c fs/reiserfs/inode.c:2775
 generic_cont_expand_simple+0x12c/0x1fc fs/buffer.c:2347
 reiserfs_setattr+0x564/0xf7c fs/reiserfs/inode.c:3305
 notify_change+0xb0c/0xdcc fs/attr.c:499
 do_truncate+0x178/0x1f0 fs/open.c:65
 do_sys_ftruncate+0x284/0x31c fs/open.c:193
 __do_sys_ftruncate fs/open.c:204 [inline]
 __se_sys_ftruncate fs/open.c:202 [inline]
 __arm64_sys_ftruncate+0x60/0x74 fs/open.c:202
 __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: 97f033fa aa1303e0 17ffff88 97df60c1 (d4210000) 
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