REISERFS warning (device loop0): vs-13060 reiserfs_update_sd_size: stat data of object [2 5 0x0 SD] (nlink == 1) not found (pos 2)
Unable to handle kernel paging request at virtual address dfff80001fffffff
Mem abort info:
  ESR = 0x0000000096000007
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x07: level 3 translation fault
Data abort info:
  ISV = 0, ISS = 0x00000007
  CM = 0, WnR = 0
[dfff80001fffffff] address between user and kernel address ranges
Internal error: Oops: 0000000096000007 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 4299 Comm: syz.0.42 Not tainted 5.15.187-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : scnprintf_cpu_key fs/reiserfs/prints.c:95 [inline]
pc : prepare_error_buf+0x73c/0x1790 fs/reiserfs/prints.c:229
lr : prepare_error_buf+0x470/0x1790 fs/reiserfs/prints.c:230
sp : ffff80001fbb6ac0
x29: ffff80001fbb6c40 x28: ffff80001af0395e x27: dfff800000000000
x26: ffff80001fbb6cc0 x25: 00000000ffffffff x24: ffff80001af02a5e
x23: 000000000000004b x22: ffff80001fbb6cd8 x21: ffff80001fbb6ca0
x20: ffffffffffffffe2 x19: ffff80001449e3e0 x18: 0000000000000001
x17: 0000000000000002 x16: ffff800008bfd83c x15: 000000000000007a
x14: 0000000000ff0100 x13: ffffffffffffffff x12: 0000000000080000
x11: 000000000001f39f x10: ffff800021269000 x9 : ffff800008bfda64
x8 : 000000001fffffff x7 : 20726f6620686372 x6 : 7261657320666f20
x5 : ffff80001af02a5e x4 : ffff80001af0395e x3 : ffff80000a92c004
x2 : 000000000000000f x1 : 00000000ffffffe0 x0 : ffff80001fbb6cc8
Call trace:
 scnprintf_cpu_key fs/reiserfs/prints.c:95 [inline]
 prepare_error_buf+0x73c/0x1790 fs/reiserfs/prints.c:229
 __reiserfs_error+0xd0/0x28c fs/reiserfs/prints.c:396
 reiserfs_do_truncate+0x3a8/0x1020 fs/reiserfs/stree.c:1930
 reiserfs_truncate_file+0x328/0x6e4 fs/reiserfs/inode.c:2318
 reiserfs_vfs_truncate_file+0x34/0x4c fs/reiserfs/file.c:133
 reiserfs_direct_IO+0x1e8/0x20c fs/reiserfs/inode.c:3276
 generic_file_direct_write+0x30c/0x608 mm/filemap.c:3687
 __generic_file_write_iter+0x28c/0x454 mm/filemap.c:3869
 generic_file_write_iter+0xb0/0x1b4 mm/filemap.c:3944
 do_iter_readv_writev+0x3a0/0x4f8 fs/read_write.c:-1
 do_iter_write+0x1c4/0x670 fs/read_write.c:855
 vfs_iter_write+0x88/0xac fs/read_write.c:896
 iter_file_splice_write+0x504/0xa1c fs/splice.c:689
 do_splice_from fs/splice.c:767 [inline]
 direct_splice_actor+0xe4/0x134 fs/splice.c:936
 splice_direct_to_actor+0x3e4/0x950 fs/splice.c:891
 do_splice_direct+0x158/0x248 fs/splice.c:979
 do_sendfile+0x458/0xc88 fs/read_write.c:1249
 __do_sys_sendfile64 fs/read_write.c:1317 [inline]
 __se_sys_sendfile64 fs/read_write.c:1303 [inline]
 __arm64_sys_sendfile64+0x130/0x3b0 fs/read_write.c:1303
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
Code: f94002b9 cb180294 b40004b9 d343ff28 (38fb6908) 
---[ end trace 3a04fb4d5dbfe4c4 ]---
----------------
Code disassembly (best guess):
   0:	f94002b9 	ldr	x25, [x21]
   4:	cb180294 	sub	x20, x20, x24
   8:	b40004b9 	cbz	x25, 0x9c
   c:	d343ff28 	lsr	x8, x25, #3
* 10:	38fb6908 	ldrsb	w8, [x8, x27] <-- trapping instruction