Warning: Permanently added '10.128.0.99' (ED25519) to the list of known hosts. executing program [ 67.166216][ T3543] [ 67.168926][ T3543] ============================= [ 67.174975][ T3543] WARNING: suspicious RCU usage [ 67.181560][ T3543] 6.1.87-syzkaller #0 Not tainted [ 67.188280][ T3543] ----------------------------- [ 67.195076][ T3543] kernel/events/callchain.c:161 suspicious rcu_dereference_check() usage! [ 67.205044][ T3543] [ 67.205044][ T3543] other info that might help us debug this: [ 67.205044][ T3543] [ 67.218682][ T3543] [ 67.218682][ T3543] rcu_scheduler_active = 2, debug_locks = 1 [ 67.232262][ T3543] 1 lock held by syz-executor212/3543: [ 67.238825][ T3543] #0: ffffffff8d12b540 (rcu_read_lock_trace){....}-{0:0}, at: rcu_read_lock_trace+0x37/0x70 [ 67.251030][ T3543] [ 67.251030][ T3543] stack backtrace: [ 67.258326][ T3543] CPU: 0 PID: 3543 Comm: syz-executor212 Not tainted 6.1.87-syzkaller #0 [ 67.267515][ T3543] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 67.279173][ T3543] Call Trace: [ 67.283179][ T3543] [ 67.287122][ T3543] dump_stack_lvl+0x1e3/0x2cb [ 67.292476][ T3543] ? nf_tcp_handle_invalid+0x642/0x642 [ 67.300956][ T3543] ? panic+0x764/0x764 [ 67.306572][ T3543] lockdep_rcu_suspicious+0x21c/0x330 [ 67.314151][ T3543] get_callchain_entry+0x2ac/0x3c0 [ 67.321468][ T3543] get_perf_callchain+0xe6/0x810 [ 67.327785][ T3543] ? put_callchain_entry+0xb0/0xb0 [ 67.334532][ T3543] ? __lock_acquire+0x125b/0x1f80 [ 67.340938][ T3543] __bpf_get_stack+0x378/0x570 [ 67.346944][ T3543] ? stack_map_get_build_id_offset+0x9c0/0x9c0 [ 67.355062][ T3543] ? __cant_sleep+0x270/0x270 [ 67.362415][ T3543] bpf_get_stack_raw_tp+0x1b2/0x220 [ 67.368722][ T3543] bpf_prog_b8a90dd1efcc4ad9+0x3d/0x41 [ 67.375726][ T3543] bpf_prog_run_pin_on_cpu+0x62/0x130 [ 67.382441][ T3543] bpf_prog_test_run_syscall+0x312/0x4d0 [ 67.388324][ T3543] ? sock_gen_cookie+0x60/0x60 [ 67.393282][ T3543] ? __fdget+0x14e/0x210 [ 67.397643][ T3543] ? sock_gen_cookie+0x60/0x60 [ 67.402760][ T3543] bpf_prog_test_run+0x32f/0x3a0 [ 67.408222][ T3543] __sys_bpf+0x3eb/0x6c0 [ 67.413422][ T3543] ? bpf_link_show_fdinfo+0x2d0/0x2d0 [ 67.419436][ T3543] ? print_irqtrace_events+0x210/0x210 [ 67.427878][ T3543] ? print_irqtrace_events+0x210/0x210 [ 67.433966][ T3543] ? syscall_enter_from_user_mode+0x2e/0x230 [ 67.441769][ T3543] ? lockdep_hardirqs_on+0x94/0x130 [ 67.447846][ T3543] __x64_sys_bpf+0x78/0x90 [ 67.453765][ T3543] do_syscall_64+0x3b/0xb0 [ 67.460582][ T3543] ? clear_bhb_loop+0x45/0xa0 [ 67.469264][ T3543] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 67.476698][ T3543] RIP: 0033:0x7f33319d7669 [ 67.485181][ 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 [ 67.512826][ T3543] RSP: 002b:00007ffc941012d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 67.521292][ T3543] RAX: ffffffffffffffda RBX: 00007ffc941014a8 RCX: 00007f33319d7669 [ 67.529627][ T3543] RDX: 000000000000000c RSI: 00000000200004c0 RDI: 000000000000000a [ 67.542233][ T3543] RBP: 00007f3331a4a610 R08: 00007ffc941014a8 R09: 00007ffc941014a8 [ 67.550951][ T3543] R10: 00007ffc941014a8 R11: 0000000000000246 R12: 0000000000000001 [ 67.559032][ T3543] R13: 00007ffc94101498 R14: 0000000000000001 R15: 0000000000000001 [ 67.567746]