Internal error: Oops - BTI: 0000000036000001 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 4345 Comm: syz.1.291 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+0x958/0x309c 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+0x93c/0x309c arch/arm64/kernel/signal.c:946 sp : ffff80001f5d7be0 x29: ffff80001f5d7e00 x28: ffff0000d5bf9b64 x27: 0000000000000001 x26: 000000001fffeda0 x25: dfff800000000000 x24: 0000000000000000 x23: 0000000000000001 x22: 000000001fffee20 x21: 0000000000000000 x20: 00000000fffffff2 x19: 0000001fffee2000 x18: 0000000000000200 x17: 0000000000000000 x16: ffff800008041c80 x15: 0000000000000002 x14: 0000000000000009 x13: 1ffff0000285202b x12: 0000000000ff0100 x11: 0000000000000000 x10: 0000ffffffffffff x9 : 000000001fffee20 x8 : 000000001fffee20 x7 : ffff800008758124 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+0x958/0x309c 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/0x1ec 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: ea2a011f 9a9f02c9 d503229f f8000938 (14000003) ---[ end trace 820645d8c17a80db ]--- ---------------- Code disassembly (best guess): 0: ea2a011f bics xzr, x8, x10 4: 9a9f02c9 csel x9, x22, xzr, eq // eq = none 8: d503229f csdb c: f8000938 sttr x24, [x9] * 10: 14000003 b 0x1c <-- trapping instruction