syzbot

Internal error: Oops - BTI: 0000000036000001 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 4254 Comm: syz.0.17 Not tainted 5.15.189-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
pstate: 42400405 (nZcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=jc)
pc : kernel_get_mempolicy mm/mempolicy.c:1625 [inline]
pc : __do_sys_get_mempolicy mm/mempolicy.c:1638 [inline]
pc : __se_sys_get_mempolicy mm/mempolicy.c:1634 [inline]
pc : __arm64_sys_get_mempolicy+0x97c/0x1108 mm/mempolicy.c:1634
lr : kernel_get_mempolicy mm/mempolicy.c:1625 [inline]
lr : __do_sys_get_mempolicy mm/mempolicy.c:1638 [inline]
lr : __se_sys_get_mempolicy mm/mempolicy.c:1634 [inline]
lr : __arm64_sys_get_mempolicy+0x958/0x1108 mm/mempolicy.c:1634
sp : ffff80001fb17c60
x29: ffff80001fb17d20 x28: dfff800000000000 x27: ffff700003f62f90
x26: 0000000020ffe000 x25: 0000000000000000 x24: 00000020000f0000
x23: 0000000000000001 x22: 00000000fffffff2 x21: 00000000000069b4
x20: ffff0000d7de9b40 x19: 0000000000000000 x18: 0000000000000000
x17: 0000000000000000 x16: ffff80000880e704 x15: 0000000000000000
x14: 0000000000000000 x13: 1ffff0000282e06b x12: 0000000000ff0100
x11: 0000000000000000 x10: 0000000020000f00 x9 : 0000ffffffffffff
x8 : 0000000020000f00 x7 : ffff800008750ed4 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000001
x2 : 0000000000000008 x1 : 0000000000000001 x0 : 0000000000000000
Call trace:
 kernel_get_mempolicy mm/mempolicy.c:1625 [inline]
 __do_sys_get_mempolicy mm/mempolicy.c:1638 [inline]
 __se_sys_get_mempolicy mm/mempolicy.c:1634 [inline]
 __arm64_sys_get_mempolicy+0x97c/0x1108 mm/mempolicy.c:1634
 __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: d503229f 2a1f03f6 2a1f03e0 b8000959 (2a1603e1) 
---[ end trace 9a413d7f2adcf57c ]---
----------------
Code disassembly (best guess):
   0:	d503229f 	csdb
   4:	2a1f03f6 	mov	w22, wzr
   8:	2a1f03e0 	mov	w0, wzr
   c:	b8000959 	sttr	w25, [x10]
* 10:	2a1603e1 	mov	w1, w22 <-- trapping instruction