Internal error: Oops - BTI: 0000000036000001 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 4159 Comm: syz.1.7 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 : setup_sigframe arch/arm64/kernel/signal.c:-1 [inline] pc : setup_rt_frame arch/arm64/kernel/signal.c:792 [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+0xb5c/0x3128 arch/arm64/kernel/signal.c:946 lr : __uaccess_mask_ptr arch/arm64/include/asm/uaccess.h:244 [inline] lr : setup_sigframe arch/arm64/kernel/signal.c:626 [inline] lr : setup_rt_frame arch/arm64/kernel/signal.c:792 [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+0xb2c/0x3128 arch/arm64/kernel/signal.c:946 sp : ffff80001fb87be0 x29: ffff80001fb87e10 x28: 00000000fffffff2 x27: ffff80001fb87eb0 x26: 0000000000000001 x25: 0000000000000001 x24: ffff80001fb87f98 x23: 0000000000000000 x22: dfff800000000000 x21: 1ffff00003f70ff3 x20: 0000000020001fa0 x19: 0000000020001fa0 x18: 0000000000000200 x17: 0000000000000002 x16: ffff800008041b6c x15: 0000000000000002 x14: 0000000000ff0100 x13: 1ffff0000282e06b x12: 0000000000080000 x11: 0000000000000a0f x10: ffff80002172a000 x9 : 0000ffffffffffff x8 : 0000ffff9bf43a20 x7 : ffff800008750ed4 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000001 x2 : 0000000000000008 x1 : 0000000000000001 x0 : 0000000000000000 Call trace: setup_sigframe arch/arm64/kernel/signal.c:626 [inline] setup_rt_frame arch/arm64/kernel/signal.c:792 [inline] handle_signal arch/arm64/kernel/signal.c:833 [inline] do_signal arch/arm64/kernel/signal.c:908 [inline] do_notify_resume+0xb5c/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_svc+0xf0/0x1e0 arch/arm64/kernel/entry-common.c:609 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: 941fec21 2a1f03fc f9400308 f8000a88 (14000003) ---[ end trace 0589772cb662a41a ]--- ---------------- Code disassembly (best guess): 0: 941fec21 bl 0x7fb084 4: 2a1f03fc mov w28, wzr 8: f9400308 ldr x8, [x24] c: f8000a88 sttr x8, [x20] * 10: 14000003 b 0x1c <-- trapping instruction