Warning: Permanently added '10.128.1.66' (ED25519) to the list of known hosts. executing program [ 72.645352][ T4244] [ 72.647789][ T4244] ============================= [ 72.652990][ T4244] WARNING: suspicious RCU usage [ 72.657859][ T4244] 6.1.134-syzkaller #0 Not tainted [ 72.663017][ T4244] ----------------------------- [ 72.667871][ T4244] kernel/events/callchain.c:161 suspicious rcu_dereference_check() usage! [ 72.676430][ T4244] [ 72.676430][ T4244] other info that might help us debug this: [ 72.676430][ T4244] [ 72.686716][ T4244] [ 72.686716][ T4244] rcu_scheduler_active = 2, debug_locks = 1 [ 72.694839][ T4244] 1 lock held by syz-executor250/4244: [ 72.700340][ T4244] #0: ffffffff8d32f000 (rcu_read_lock_trace){....}-{0:0}, at: rcu_read_lock_trace+0x37/0x70 [ 72.710648][ T4244] [ 72.710648][ T4244] stack backtrace: [ 72.716605][ T4244] CPU: 0 PID: 4244 Comm: syz-executor250 Not tainted 6.1.134-syzkaller #0 [ 72.725120][ T4244] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 72.735204][ T4244] Call Trace: [ 72.738502][ T4244] [ 72.741438][ T4244] dump_stack_lvl+0x1e3/0x2cb [ 72.746130][ T4244] ? nf_tcp_handle_invalid+0x647/0x647 [ 72.751604][ T4244] ? panic+0x764/0x764 [ 72.755696][ T4244] ? __lock_acquire+0x125b/0x1f80 [ 72.760730][ T4244] lockdep_rcu_suspicious+0x21c/0x330 [ 72.766124][ T4244] get_callchain_entry+0x2ac/0x3c0 [ 72.771284][ T4244] get_perf_callchain+0xe6/0x810 [ 72.776269][ T4244] ? put_callchain_entry+0xb0/0xb0 [ 72.781402][ T4244] ? __lock_acquire+0x125b/0x1f80 [ 72.786470][ T4244] __bpf_get_stack+0x3da/0x590 [ 72.791270][ T4244] ? stack_map_get_build_id_offset+0x9c0/0x9c0 [ 72.797443][ T4244] ? __cant_sleep+0x270/0x270 [ 72.802137][ T4244] bpf_get_stack_raw_tp+0x1b2/0x220 [ 72.807361][ T4244] bpf_prog_d43750871481577d+0x3d/0x41 [ 72.812943][ T4244] bpf_prog_run_pin_on_cpu+0x62/0x130 [ 72.818366][ T4244] bpf_prog_test_run_syscall+0x312/0x4d0 [ 72.824037][ T4244] ? sock_gen_cookie+0x60/0x60 [ 72.828835][ T4244] ? __fdget+0x14e/0x210 [ 72.833095][ T4244] ? sock_gen_cookie+0x60/0x60 [ 72.837870][ T4244] bpf_prog_test_run+0x32f/0x3a0 [ 72.842825][ T4244] __sys_bpf+0x3eb/0x6c0 [ 72.847083][ T4244] ? bpf_link_show_fdinfo+0x300/0x300 [ 72.852482][ T4244] ? print_irqtrace_events+0x210/0x210 [ 72.857963][ T4244] ? print_irqtrace_events+0x210/0x210 [ 72.863440][ T4244] ? syscall_enter_from_user_mode+0x2e/0x230 [ 72.869439][ T4244] ? lockdep_hardirqs_on+0x94/0x130 [ 72.874655][ T4244] __x64_sys_bpf+0x78/0x90 [ 72.879083][ T4244] do_syscall_64+0x3b/0x80 [ 72.883506][ T4244] ? clear_bhb_loop+0x45/0xa0 [ 72.888240][ T4244] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 72.894156][ T4244] RIP: 0033:0x7fb8630a5969 [ 72.898587][ T4244] 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 [ 72.918218][ T4244] RSP: 002b:00007ffc07aa06e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 72.926641][ T4244] RAX: ffffffffffffffda RBX: 0000200000000440 RCX: 00007fb8630a5969 [ 72.934616][ T4244] RDX: 0000000000000010 RSI: 0000200000000740 RDI: 000000000000000a [ 72.942595][ T4244] RBP: 00002000000000c0 R08