syzbot

Internal error: Oops - BTI: 0000000036000001 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 4099 Comm: syz.2.49 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
pstate: 42400405 (nZcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=jc)
pc : setup_rt_frame arch/arm64/kernel/signal.c:-1 [inline]
pc : handle_signal arch/arm64/kernel/signal.c:833 [inline]
pc : do_signal arch/arm64/kernel/signal.c:908 [inline]
pc : do_notify_resume+0x958/0x3128 arch/arm64/kernel/signal.c:946
lr : __uaccess_mask_ptr arch/arm64/include/asm/uaccess.h:244 [inline]
lr : setup_rt_frame arch/arm64/kernel/signal.c:788 [inline]
lr : handle_signal arch/arm64/kernel/signal.c:833 [inline]
lr : do_signal arch/arm64/kernel/signal.c:908 [inline]
lr : do_notify_resume+0x938/0x3128 arch/arm64/kernel/signal.c:946
sp : ffff80001f747be0
x29: ffff80001f747e00 x28: 00000000fffffff2 x27: ffff80001f747eb0
x26: 0000000000000001 x25: 000000001fffee20 x24: ffff80001f747f98
x23: 0000000000000001 x22: dfff800000000000 x21: ffff0000c8e13680
x20: 0000000000000000 x19: 0000001fffee2000 x18: 0000000000000200
x17: 0000000000000000 x16: ffff8000080419f4 x15: 0000000000000002
x14: 0000000000ff0100 x13: 1ffff0000283206b x12: 0000000000ff0100
x11: 0000000000000000 x10: 0000ffffffffffff x9 : 000000001fffee20
x8 : 0000000000000000 x7 : ffff80000875107c x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000001
x2 : 0000000000000008 x1 : 0000000000000001 x0 : 0000000000000000
Call trace:
 setup_rt_frame arch/arm64/kernel/signal.c:788 [inline]
 handle_signal arch/arm64/kernel/signal.c:833 [inline]
 do_signal arch/arm64/kernel/signal.c:908 [inline]
 do_notify_resume+0x958/0x3128 arch/arm64/kernel/signal.c:946
 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline]
 el0_da+0x10c/0x1fc arch/arm64/kernel/entry-common.c:495
 el0t_64_sync_handler+0xd8/0xe4 arch/arm64/kernel/entry-common.c:629
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
Code: 9a9f0329 d503229f f9405fe8 f8000928 (14000003) 
---[ end trace e8dd2b96548825b2 ]---
----------------
Code disassembly (best guess):
   0:	9a9f0329 	csel	x9, x25, xzr, eq	// eq = none
   4:	d503229f 	csdb
   8:	f9405fe8 	ldr	x8, [sp, #184]
   c:	f8000928 	sttr	x8, [x9]
* 10:	14000003 	b	0x1c <-- trapping instruction