Warning: Permanently added '10.128.10.45' (ED25519) to the list of known hosts. executing program [ 57.717713][ T3544] [ 57.720129][ T3544] ============================= [ 57.725074][ T3544] WARNING: suspicious RCU usage [ 57.729950][ T3544] 6.1.87-syzkaller #0 Not tainted [ 57.735215][ T3544] ----------------------------- [ 57.740098][ T3544] kernel/events/callchain.c:161 suspicious rcu_dereference_check() usage! [ 57.748652][ T3544] [ 57.748652][ T3544] other info that might help us debug this: [ 57.748652][ T3544] [ 57.758943][ T3544] [ 57.758943][ T3544] rcu_scheduler_active = 2, debug_locks = 1 [ 57.767042][ T3544] 1 lock held by syz-executor332/3544: [ 57.772554][ T3544] #0: ffffffff8d12b540 (rcu_read_lock_trace){....}-{0:0}, at: rcu_read_lock_trace+0x37/0x70 [ 57.782818][ T3544] [ 57.782818][ T3544] stack backtrace: [ 57.788726][ T3544] CPU: 0 PID: 3544 Comm: syz-executor332 Not tainted 6.1.87-syzkaller #0 [ 57.797143][ T3544] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 57.807202][ T3544] Call Trace: [ 57.810508][ T3544] [ 57.813463][ T3544] dump_stack_lvl+0x1e3/0x2cb [ 57.818156][ T3544] ? nf_tcp_handle_invalid+0x642/0x642 [ 57.823635][ T3544] ? panic+0x764/0x764 [ 57.827716][ T3544] lockdep_rcu_suspicious+0x21c/0x330 [ 57.833113][ T3544] get_callchain_entry+0x2ac/0x3c0 [ 57.838225][ T3544] get_perf_callchain+0xe6/0x810 [ 57.843166][ T3544] ? put_callchain_entry+0xb0/0xb0 [ 57.848299][ T3544] ? __lock_acquire+0x125b/0x1f80 [ 57.853356][ T3544] __bpf_get_stack+0x378/0x570 [ 57.858136][ T3544] ? stack_map_get_build_id_offset+0x9c0/0x9c0 [ 57.864297][ T3544] ? __cant_sleep+0x270/0x270 [ 57.868971][ T3544] bpf_get_stack_raw_tp+0x1b2/0x220 [ 57.874171][ T3544] bpf_prog_b8a90dd1efcc4ad9+0x3d/0x41 [ 57.879626][ T3544] bpf_prog_run_pin_on_cpu+0x62/0x130 [ 57.885022][ T3544] bpf_prog_test_run_syscall+0x312/0x4d0 [ 57.890673][ T3544] ? sock_gen_cookie+0x60/0x60 [ 57.895454][ T3544] ? __fdget+0x14e/0x210 [ 57.899711][ T3544] ? sock_gen_cookie+0x60/0x60 [ 57.904485][ T3544] bpf_prog_test_run+0x32f/0x3a0 [ 57.909439][ T3544] __sys_bpf+0x3eb/0x6c0 [ 57.913693][ T3544] ? bpf_link_show_fdinfo+0x2d0/0x2d0 [ 57.919085][ T3544] ? print_irqtrace_events+0x210/0x210 [ 57.924552][ T3544] ? print_irqtrace_events+0x210/0x210 [ 57.930016][ T3544] ? syscall_enter_from_user_mode+0x2e/0x230 [ 57.936011][ T3544] ? lockdep_hardirqs_on+0x94/0x130 [ 57.941215][ T3544] __x64_sys_bpf+0x78/0x90 [ 57.945689][ T3544] do_syscall_64+0x3b/0xb0 [ 57.950116][ T3544] ? clear_bhb_loop+0x45/0xa0 [ 57.954800][ T3544] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 57.960716][ T3544] RIP: 0033:0x7fdacb9a4669 [ 57.965142][ T3544] Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 57.984760][ T3544] RSP: 002b:00007ffc0d13c508 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 57.993186][ T3544] RAX: ffffffffffffffda RBX: 00007ffc0d13c6d8 RCX: 00007fdacb9a4669 [ 58.001156][ T3544] RDX: 000000000000000c RSI: 00000000200004c0 RDI: 000000000000000a [ 58.009127][ T3544] RBP: 00007fdacba17610 R08: 00007ffc0d13c6d8 R09: 00007ffc0d13c6d8 [ 58.017194][ T3544]