Unable to handle kernel write to read-only memory at virtual address ffff0000db87b044
KASAN: maybe wild-memory-access in range [0xfffc0006dc3d8220-0xfffc0006dc3d8227]
Mem abort info:
  ESR = 0x000000009600004f
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x0f: level 3 permission fault
Data abort info:
  ISV = 0, ISS = 0x0000004f
  CM = 0, WnR = 1
swapper pgtable: 4k pages, 48-bit VAs, pgdp=000000020e268000
[ffff0000db87b044] pgd=180000023fff7003, p4d=180000023fff7003, pud=180000023f413003, pmd=180000023f336003, pte=006000011b87b787
Internal error: Oops: 000000009600004f [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 6178 Comm: syz.3.261 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : __memcpy+0x1b4/0x260 arch/arm64/lib/memcpy.S:206
lr : memmove+0x74/0x90 mm/kasan/shadow.c:58
sp : ffff800021c07440
x29: ffff800021c07440 x28: 0000000000000000 x27: ffff0000db879000
x26: ffff0000db87904c x25: dfff800000000000 x24: 00000000000003cc
x23: 0000000000000800 x22: ffff800008caa8dc x21: ffff0000db879058
x20: ffff0000db879050 x19: 0000000000001ffc x18: ffff800011abbcc0
x17: 00000fe800000218 x16: ffff8000082d25ac x15: ffff8000089a0ae0
x14: 0000000000000004 x13: 0000000000000000 x12: 0000000000000000
x11: 0000000000000000 x10: ffff60001b70f60b x9 : 0000000000000000
x8 : 0000000000000001 x7 : 0000000000000000 x6 : 0000000000000000
x5 : ffff0000db87b054 x4 : ffff0000db87b048 x3 : ffff800008caa8dc
x2 : 0000000000001ff8 x1 : ffff0000db879050 x0 : ffff0000db879058
Call trace:
 __memcpy+0x1b4/0x260 arch/arm64/lib/memcpy.S:205
 reiserfs_release_objectid+0x430/0x614 fs/reiserfs/objectid.c:165
 remove_save_link+0x21c/0x320 fs/reiserfs/super.c:542
 reiserfs_evict_inode+0x2f8/0x3e4 fs/reiserfs/inode.c:91
 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
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 do_notify_resume+0x2038/0x2b28 arch/arm64/kernel/signal.c:1137
 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline]
 el0_svc+0x98/0x138 arch/arm64/kernel/entry-common.c:638
 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: 92400cae cb0e0084 cb0e0042 a97f1c86 (a93f34ac) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	92400cae 	and	x14, x5, #0xf
   4:	cb0e0084 	sub	x4, x4, x14
   8:	cb0e0042 	sub	x2, x2, x14
   c:	a97f1c86 	ldp	x6, x7, [x4, #-16]
* 10:	a93f34ac 	stp	x12, x13, [x5, #-16] <-- trapping instruction