Internal error: Oops - BTI: 0000000036000001 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 4302 Comm: syz.0.75 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 : get_futex_value_locked kernel/futex/core.c:793 [inline] pc : futex_wait_setup+0x1c4/0x4d4 kernel/futex/core.c:2916 lr : __uaccess_mask_ptr arch/arm64/include/asm/uaccess.h:239 [inline] lr : get_futex_value_locked kernel/futex/core.c:790 [inline] lr : futex_wait_setup+0x1a4/0x4d4 kernel/futex/core.c:2916 sp : ffff80001fe37810 x29: ffff80001fe37840 x28: ffff0000d7d451e4 x27: 0000000000000000 x26: 1fffe0001afa8a3c x25: ffff0000d7d451c0 x24: 00000000fffffff2 x23: 0000000000000000 x22: 1ffff00003fc6f2d x21: dfff800000000000 x20: 0000000000000000 x19: ffff80001fe37968 x18: 0000000000000000 x17: 0000000000000002 x16: ffff8000083c6ed8 x15: 000000000000000d x14: 0000000000ff0100 x13: 1ffff0000282e06b x12: 0000000000080000 x11: 000000000000013b x10: 0000ffffffffffff x9 : 0000000000000000 x8 : 0000000000000000 x7 : ffff8000083c8524 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000082d608c x2 : 0000000000000001 x1 : 0000000000000001 x0 : 0000000000000000 Call trace: get_futex_value_locked kernel/futex/core.c:790 [inline] futex_wait_setup+0x1c4/0x4d4 kernel/futex/core.c:2916 futex_wait_requeue_pi kernel/futex/core.c:3458 [inline] do_futex+0x1bc8/0x257c kernel/futex/core.c:4005 __do_sys_futex kernel/futex/core.c:4059 [inline] __se_sys_futex kernel/futex/core.c:4040 [inline] __arm64_sys_futex+0x388/0x400 kernel/futex/core.c:4040 __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 2a1b03f8 2a1b03e0 b8400914 (2a1803e1) ---[ end trace f52e8339bf280415 ]--- ---------------- Code disassembly (best guess): 0: d503229f csdb 4: 2a1b03f8 mov w24, w27 8: 2a1b03e0 mov w0, w27 c: b8400914 ldtr w20, [x8] * 10: 2a1803e1 mov w1, w24 <-- trapping instruction