REISERFS warning (device loop0): vs-13060 reiserfs_update_sd_size: stat data of object [2 7 0x0 SD] (nlink == 1) not found (pos 1)
REISERFS warning (device loop0): vs-13060 reiserfs_update_sd_size: stat data of object [2 7 0x0 SD] (nlink == 1) not found (pos 1)
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: 4982 Comm: syz.0.16 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : scnprintf_cpu_key fs/reiserfs/prints.c:95 [inline]
pc : prepare_error_buf+0x714/0x16e8 fs/reiserfs/prints.c:229
lr : prepare_error_buf+0x470/0x16e8 fs/reiserfs/prints.c:230
sp : ffff80001fc17120
x29: ffff80001fc172a0 x28: ffffffffffffffe2 x27: ffff700003f82e34
x26: 00000000ffffffff x25: ffff80001b02179e x24: ffff80001b02089e
x23: 000000000000004b x22: ffff80001fc17338 x21: 1ffff00003f82e67
x20: ffff80001fc17300 x19: dfff800000000000 x18: 0000000000000001
x17: 0000000000000000 x16: ffff800008bf9908 x15: 000000000000007a
x14: 0000000000ff0100 x13: ffffffffffffffff x12: 0000000000ff0100
x11: 0000000000000001 x10: 0000000000000000 x9 : ffff800008bf9af0
x8 : 000000001fffffff x7 : 20726f6620686372 x6 : 7261657320666f20
x5 : ffff80001b02089e x4 : ffff80001b02179e x3 : ffff80000a958604
x2 : 000000000000000f x1 : 00000000ffffffe0 x0 : ffff80001fc17328
Call trace:
 scnprintf_cpu_key fs/reiserfs/prints.c:95 [inline]
 prepare_error_buf+0x714/0x16e8 fs/reiserfs/prints.c:229
 __reiserfs_error+0xdc/0x2a0 fs/reiserfs/prints.c:396
 reiserfs_do_truncate+0x268/0x1058 fs/reiserfs/stree.c:1930
 reiserfs_truncate_file+0x338/0x708 fs/reiserfs/inode.c:2318
 reiserfs_truncate_failed_write fs/reiserfs/inode.c:2751 [inline]
 reiserfs_write_begin+0x548/0x654 fs/reiserfs/inode.c:2823
 pagecache_write_begin+0xa0/0xc0 mm/filemap.c:3608
 generic_cont_expand_simple+0xf4/0x1ac fs/buffer.c:2362
 reiserfs_setattr+0x338/0xddc fs/reiserfs/inode.c:3319
 notify_change+0xa08/0xcd8 fs/attr.c:505
 do_truncate+0x188/0x20c fs/open.c:65
 vfs_truncate+0x23c/0x2b0 fs/open.c:111
 do_sys_truncate+0xec/0x1b4 fs/open.c:134
 __do_sys_truncate fs/open.c:146 [inline]
 __se_sys_truncate fs/open.c:144 [inline]
 __arm64_sys_truncate+0x5c/0x70 fs/open.c:144
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:181
 el0_svc+0x78/0x1d0 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: 91220108 cb18011c b40004da d343ff48 (38f36908) 
---[ end trace 6acac47ade821e10 ]---
----------------
Code disassembly (best guess):
   0:	91220108 	add	x8, x8, #0x880
   4:	cb18011c 	sub	x28, x8, x24
   8:	b40004da 	cbz	x26, 0xa0
   c:	d343ff48 	lsr	x8, x26, #3
* 10:	38f36908 	ldrsb	w8, [x8, x19] <-- trapping instruction