syzbot

cgroup: Unknown subsys name 'net'
Internal error: Oops - BTI: 0000000036000001 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 4090 Comm: syz-executor 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 : copy_mount_options fs/namespace.c:3235 [inline]
pc : __do_sys_mount fs/namespace.c:3560 [inline]
pc : __se_sys_mount fs/namespace.c:3542 [inline]
pc : __arm64_sys_mount+0x2f8/0x5e4 fs/namespace.c:3542
lr : copy_mount_options fs/namespace.c:3235 [inline]
lr : __do_sys_mount fs/namespace.c:3560 [inline]
lr : __se_sys_mount fs/namespace.c:3542 [inline]
lr : __arm64_sys_mount+0x2d4/0x5e4 fs/namespace.c:3542
sp : ffff80001f4b7c80
x29: ffff80001f4b7d20 x28: 00000000fffffff2 x27: 0000ffffdd00f000
x26: ffff0000c2ee51c0 x25: 0000000000000000 x24: 0000ffffdd00e0d1
x23: ffff0000d017c000 x22: 0000000000000f2f x21: dfff800000000000
x20: 00000000ffffff2f x19: 0000000000000000 x18: 0000000000000000
x17: 0000000000000000 x16: ffff8000089650ac x15: 0000ffffdd00e0d1
x14: 2e3832312e303120 x13: 1ffff0000282e06b x12: 0000000000ff0100
x11: 0000000000000000 x10: 0000ffffffffffff x9 : 0000ffffdd00f000
x8 : 0000ffffdd00f000 x7 : ffff800008750ed4 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000001
x2 : 0000000000000008 x1 : 0000000000000001 x0 : 0000000000000000
Call trace:
 copy_mount_options fs/namespace.c:3235 [inline]
 __do_sys_mount fs/namespace.c:3560 [inline]
 __se_sys_mount fs/namespace.c:3542 [inline]
 __arm64_sys_mount+0x2f8/0x5e4 fs/namespace.c:3542
 __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 2a1903fc 2a1903e0 38400933 (2a1c03e1) 
---[ end trace 76a0354157f9daa4 ]---
----------------
Code disassembly (best guess):
   0:	d503229f 	csdb
   4:	2a1903fc 	mov	w28, w25
   8:	2a1903e0 	mov	w0, w25
   c:	38400933 	ldtrb	w19, [x9]
* 10:	2a1c03e1 	mov	w1, w28 <-- trapping instruction