Internal error: Oops - BTI: 0000000036000001 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 5122 Comm: syz.0.17 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 42400405 (nZcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=jc) pc : do_sys_poll+0xe14/0x106c fs/select.c:1025 lr : do_sys_poll+0xde0/0x106c fs/select.c:1025 sp : ffff80001fe976a0 x29: ffff80001fe97c40 x28: 0000000020000006 x27: 0000000000000000 x26: 0000002000000600 x25: ffff80001fe97ae2 x24: 0000000020000006 x23: 00000000fffffff2 x22: ffff80001fe97aea x21: 0000000020000006 x20: 0000000000000000 x19: 0000000020000006 x18: 0000000000000002 x17: 0000000040000000 x16: ffff800008935d14 x15: 0000000000000002 x14: 0000000000000001 x13: 1ffff0000285402b x12: 0000000000ff0100 x11: 0000000000000000 x10: 0000000000000000 x9 : dfff800000000000 x8 : 0000000000000000 x7 : ffff800008758fbc x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000001 x2 : 0000000000000008 x1 : 0000000000000001 x0 : 0000000000000000 Call trace: do_sys_poll+0xe14/0x106c fs/select.c:1025 __do_sys_ppoll fs/select.c:1120 [inline] __se_sys_ppoll fs/select.c:1100 [inline] __arm64_sys_ppoll+0x224/0x2c0 fs/select.c:1100 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:181 el0_svc+0x78/0x1d0 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: 35000308 2a1403f7 784086c8 78000b08 (2a1403e0) ---[ end trace 92079b922aa0b896 ]--- ---------------- Code disassembly (best guess): 0: 35000308 cbnz w8, 0x60 4: 2a1403f7 mov w23, w20 8: 784086c8 ldrh w8, [x22], #8 c: 78000b08 sttrh w8, [x24] * 10: 2a1403e0 mov w0, w20 <-- trapping instruction