Internal error: Oops - BTI: 0000000036000001 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 5101 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 : __do_sys_prctl kernel/sys.c:2319 [inline] pc : __se_sys_prctl kernel/sys.c:2298 [inline] pc : __arm64_sys_prctl+0xbe0/0xf14 kernel/sys.c:2298 lr : sign_extend64 include/linux/bitops.h:183 [inline] lr : __uaccess_mask_ptr arch/arm64/include/asm/uaccess.h:244 [inline] lr : __do_sys_prctl kernel/sys.c:2319 [inline] lr : __se_sys_prctl kernel/sys.c:2298 [inline] lr : __arm64_sys_prctl+0xbac/0xf14 kernel/sys.c:2298 sp : ffff80001ffd7cc0 x29: ffff80001ffd7d20 x28: ffff0000e83051c0 x27: ffff80001ffd7cc0 x26: 1ffff00003ffaf98 x25: dfff800000000000 x24: 00000000ffffffda x23: 0000000000000000 x22: 0000000000000000 x21: 0000000000000000 x20: ffff0000e83056e0 x19: 0000000000000000 x18: 0000000000000000 x17: 0000000000000000 x16: ffff8000081dfaa0 x15: 000000000000003d x14: 0000000000ff0100 x13: 1ffff0000282e06b x12: 0000000000ff0100 x11: 0000000000000000 x10: 1fffe0001d060adc x9 : 00000000fffffff2 x8 : 0000000000000000 x7 : ffff800008750ed4 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000001 x2 : 0000000000000008 x1 : 0000000000000001 x0 : 0000000000000000 Call trace: __do_sys_prctl kernel/sys.c:2319 [inline] __se_sys_prctl kernel/sys.c:2298 [inline] __arm64_sys_prctl+0xbe0/0xf14 kernel/sys.c:2298 __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: 35001248 2a1f03e9 b9400288 b8000aa8 (93407d20) ---[ end trace 32e5c984588de08f ]--- ---------------- Code disassembly (best guess): 0: 35001248 cbnz w8, 0x248 4: 2a1f03e9 mov w9, wzr 8: b9400288 ldr w8, [x20] c: b8000aa8 sttr w8, [x21] * 10: 93407d20 sxtw x0, w9 <-- trapping instruction