REISERFS warning (device loop1): vs-13060 reiserfs_update_sd_size: stat data of object [2 4 0x0 SD] (nlink == 1) not found (pos 3)
Unable to handle kernel paging request at virtual address 00000000ffffffff
Mem abort info:
  ESR = 0x0000000096000005
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x05: level 1 translation fault
Data abort info:
  ISV = 0, ISS = 0x00000005
  CM = 0, WnR = 0
user pgtable: 4k pages, 48-bit VAs, pgdp=000000010deeb000
[00000000ffffffff] pgd=0800000118163003, p4d=0800000118163003, pud=0000000000000000
Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 4551 Comm: syz.1.36 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026
pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : scnprintf_cpu_key fs/reiserfs/prints.c:95 [inline]
pc : prepare_error_buf+0x87c/0x18c0 fs/reiserfs/prints.c:229
lr : prepare_error_buf+0x574/0x18c0 fs/reiserfs/prints.c:230
sp : ffff800021bf7260
x29: ffff800021bf73e0 x28: ffff80001c6c7b1e x27: ffffffffffffffe2
x26: 000000000000004b x25: dfff800000000000 x24: ffff80001c6c8a1e
x23: ffff800021bf7460 x22: ffff800021bf72e0 x21: 00000000ffffffff
x20: ffff80001567d0c0 x19: ffff70000437ee5c x18: 0000000000000000
x17: 0000000000000000 x16: ffff8000082f2508 x15: 0000000000000002
x14: 000000000000007a x13: 0000000000ff0100 x12: 0000000000080000
x11: 00000000000055b7 x10: ffff80002271b000 x9 : ffff800008cccbc8
x8 : 0000000000000000 x7 : 20726f6620686372 x6 : 7261657320666f20
x5 : ffff80001c6c7b1e x4 : ffff80001c6c8a1e x3 : ffff800011a31b94
x2 : 000000000000000f x1 : 00000000ffffffe0 x0 : 00000000ffffffff
Call trace:
 scnprintf_cpu_key fs/reiserfs/prints.c:95 [inline]
 prepare_error_buf+0x87c/0x18c0 fs/reiserfs/prints.c:229
 __reiserfs_error+0xdc/0x2a0 fs/reiserfs/prints.c:396
 reiserfs_do_truncate+0x264/0xfd0 fs/reiserfs/stree.c:1930
 reiserfs_truncate_file+0x3a4/0xb04 fs/reiserfs/inode.c:2310
 reiserfs_vfs_truncate_file+0x34/0x4c fs/reiserfs/file.c:133
 reiserfs_direct_IO+0x1e8/0x20c fs/reiserfs/inode.c:3258
 generic_file_direct_write+0x104/0x2b4 mm/filemap.c:3787
 __generic_file_write_iter+0x144/0x250 mm/filemap.c:3945
 generic_file_write_iter+0xb4/0x2b0 mm/filemap.c:3989
 do_iter_readv_writev fs/read_write.c:-1 [inline]
 do_iter_write+0x520/0x93c fs/read_write.c:861
 vfs_writev fs/read_write.c:934 [inline]
 do_writev+0x200/0x3d0 fs/read_write.c:977
 __do_sys_writev fs/read_write.c:1050 [inline]
 __se_sys_writev fs/read_write.c:1047 [inline]
 __arm64_sys_writev+0x80/0x94 fs/read_write.c:1047
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x128 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: d343fea8 38f96908 350058a8 aa1503e0 (b8404416) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	d343fea8 	lsr	x8, x21, #3
   4:	38f96908 	ldrsb	w8, [x8, x25]
   8:	350058a8 	cbnz	w8, 0xb1c
   c:	aa1503e0 	mov	x0, x21
* 10:	b8404416 	ldr	w22, [x0], #4 <-- trapping instruction