Warning: Permanently added '10.128.0.183' (ED25519) to the list of known hosts. executing program [ 66.151314][ T3543] [ 66.153757][ T3543] ============================= [ 66.158683][ T3543] WARNING: suspicious RCU usage [ 66.163581][ T3543] 6.1.87-syzkaller #0 Not tainted [ 66.168623][ T3543] ----------------------------- [ 66.173460][ T3543] kernel/events/callchain.c:161 suspicious rcu_dereference_check() usage! [ 66.182044][ T3543] [ 66.182044][ T3543] other info that might help us debug this: [ 66.182044][ T3543] [ 66.192352][ T3543] [ 66.192352][ T3543] rcu_scheduler_active = 2, debug_locks = 1 [ 66.200503][ T3543] 1 lock held by syz-executor242/3543: [ 66.206018][ T3543] #0: ffffffff8d12b540 (rcu_read_lock_trace){....}-{0:0}, at: rcu_read_lock_trace+0x37/0x70 [ 66.216304][ T3543] [ 66.216304][ T3543] stack backtrace: [ 66.222235][ T3543] CPU: 1 PID: 3543 Comm: syz-executor242 Not tainted 6.1.87-syzkaller #0 [ 66.230645][ T3543] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 66.240700][ T3543] Call Trace: [ 66.243976][ T3543] [ 66.246906][ T3543] dump_stack_lvl+0x1e3/0x2cb [ 66.251604][ T3543] ? nf_tcp_handle_invalid+0x642/0x642 [ 66.257071][ T3543] ? panic+0x764/0x764 [ 66.261147][ T3543] lockdep_rcu_suspicious+0x21c/0x330 [ 66.266531][ T3543] get_callchain_entry+0x2ac/0x3c0 [ 66.271664][ T3543] get_perf_callchain+0xe6/0x810 [ 66.276608][ T3543] ? put_callchain_entry+0xb0/0xb0 [ 66.281721][ T3543] ? __lock_acquire+0x125b/0x1f80 [ 66.286779][ T3543] __bpf_get_stack+0x378/0x570 [ 66.291553][ T3543] ? stack_map_get_build_id_offset+0x9c0/0x9c0 [ 66.297728][ T3543] ? __cant_sleep+0x270/0x270 [ 66.302404][ T3543] bpf_get_stack_raw_tp+0x1b2/0x220 [ 66.307611][ T3543] bpf_prog_b8a90dd1efcc4ad9+0x3d/0x41 [ 66.313076][ T3543] bpf_prog_run_pin_on_cpu+0x62/0x130 [ 66.318456][ T3543] bpf_prog_test_run_syscall+0x312/0x4d0 [ 66.324102][ T3543] ? sock_gen_cookie+0x60/0x60 [ 66.328879][ T3543] ? __fdget+0x14e/0x210 [ 66.333126][ T3543] ? sock_gen_cookie+0x60/0x60 [ 66.337899][ T3543] bpf_prog_test_run+0x32f/0x3a0 [ 66.342857][ T3543] __sys_bpf+0x3eb/0x6c0 [ 66.347116][ T3543] ? bpf_link_show_fdinfo+0x2d0/0x2d0 [ 66.352511][ T3543] ? print_irqtrace_events+0x210/0x210 [ 66.357984][ T3543] ? print_irqtrace_events+0x210/0x210 [ 66.363484][ T3543] ? syscall_enter_from_user_mode+0x2e/0x230 [ 66.369491][ T3543] ? lockdep_hardirqs_on+0x94/0x130 [ 66.374698][ T3543] __x64_sys_bpf+0x78/0x90 [ 66.379140][ T3543] do_syscall_64+0x3b/0xb0 [ 66.383571][ T3543] ? clear_bhb_loop+0x45/0xa0 [ 66.388264][ T3543] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 66.394167][ T3543] RIP: 0033:0x7f53e5e81669 [ 66.398673][ T3543] 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 [ 66.418371][ T3543] RSP: 002b:00007fffcb52f1d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 66.426795][ T3543] RAX: ffffffffffffffda RBX: 00007fffcb52f3a8 RCX: 00007f53e5e81669 [ 66.434777][ T3543] RDX: 000000000000000c RSI: 00000000200004c0 RDI: 000000000000000a [ 66.442750][ T3543] RBP: 00007f53e5ef4610 R08: 00007fffcb52f3a8 R09: 00007fffcb52f3a8 [ 66.450814][ T3543]