Warning: Permanently added '10.128.0.252' (ED25519) to the list of known hosts. executing program [ 57.366142][ T4163] [ 57.368564][ T4163] ============================= [ 57.373395][ T4163] WARNING: suspicious RCU usage [ 57.378638][ T4163] 5.15.176-syzkaller #0 Not tainted [ 57.383877][ T4163] ----------------------------- [ 57.388726][ T4163] kernel/events/callchain.c:161 suspicious rcu_dereference_check() usage! [ 57.397259][ T4163] [ 57.397259][ T4163] other info that might help us debug this: [ 57.397259][ T4163] [ 57.407617][ T4163] [ 57.407617][ T4163] rcu_scheduler_active = 2, debug_locks = 1 [ 57.415720][ T4163] 1 lock held by syz-executor227/4163: [ 57.421182][ T4163] #0: ffffffff8cb20480 (rcu_read_lock_trace){....}-{0:0}, at: rcu_lock_acquire+0x9/0x30 [ 57.431075][ T4163] [ 57.431075][ T4163] stack backtrace: [ 57.437027][ T4163] CPU: 0 PID: 4163 Comm: syz-executor227 Not tainted 5.15.176-syzkaller #0 [ 57.445607][ T4163] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 57.455658][ T4163] Call Trace: [ 57.458928][ T4163] [ 57.461849][ T4163] dump_stack_lvl+0x1e3/0x2d0 [ 57.466531][ T4163] ? io_uring_drop_tctx_refs+0x1a0/0x1a0 [ 57.472163][ T4163] ? lockdep_rcu_suspicious+0x158/0x1c0 [ 57.477699][ T4163] get_callchain_entry+0x2ac/0x3c0 [ 57.482805][ T4163] get_perf_callchain+0xe6/0x810 [ 57.487737][ T4163] ? put_callchain_entry+0xb0/0xb0 [ 57.492838][ T4163] ? __lock_acquire+0x1295/0x1ff0 [ 57.497860][ T4163] __bpf_get_stack+0x378/0x570 [ 57.502621][ T4163] ? stack_map_get_build_id_offset+0x930/0x930 [ 57.508765][ T4163] ? __cant_sleep+0x270/0x270 [ 57.513437][ T4163] bpf_get_stack_raw_tp+0x1b2/0x220 [ 57.518629][ T4163] bpf_prog_0f38b8827da495ce+0x3a/0x92c [ 57.524167][ T4163] bpf_prog_run_pin_on_cpu+0x62/0x130 [ 57.529531][ T4163] bpf_prog_test_run_syscall+0x366/0x550 [ 57.535156][ T4163] ? __lock_acquire+0x1ff0/0x1ff0 [ 57.540194][ T4163] ? sock_gen_cookie+0x60/0x60 [ 57.544980][ T4163] ? __fdget+0x158/0x220 [ 57.549224][ T4163] ? sock_gen_cookie+0x60/0x60 [ 57.554072][ T4163] bpf_prog_test_run+0x32f/0x3a0 [ 57.559030][ T4163] __sys_bpf+0x3ac/0x670 [ 57.563370][ T4163] ? bpf_link_show_fdinfo+0x300/0x300 [ 57.568777][ T4163] ? syscall_enter_from_user_mode+0x2e/0x240 [ 57.574770][ T4163] ? lockdep_hardirqs_on+0x94/0x130 [ 57.579987][ T4163] __x64_sys_bpf+0x78/0x90 [ 57.584401][ T4163] do_syscall_64+0x3b/0xb0 [ 57.588806][ T4163] ? clear_bhb_loop+0x15/0x70 [ 57.593561][ T4163] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 57.599447][ T4163] RIP: 0033:0x7f1744607eb9 [ 57.603857][ T4163] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 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 [ 57.623452][ T4163] RSP: 002b:00007ffc728e1e38 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 57.631859][ T4163] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1744607eb9 [ 57.639839][ T4163] RDX: 000000000000000c RSI: 00000000200004c0 RDI: 000000000000000a [ 57.647803][ T4163] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006 [ 57.655766][ T4163] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 57.663728][ T4163] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001 [ 57.671702][ T4163] [ 57.674946][ T4163] [ 57.677284][ T4163] ============================= [ 57.682132][ T4163] WARNING: suspicious RCU usage [ 57.687057][ T4163] 5.15.176-syzkaller #0 Not tainted [ 57.692258][ T4163] ----------------------------- [ 57.697128][ T4163] include/linux/perf_event.h:1274 suspicious rcu_dereference_check() usage! [ 57.705823][ T4163] [ 57.705823][ T4163] other info that might help us debug this: [ 57.705823][ T4163] [ 57.716851][ T4163] [ 57.716851][ T4163] rcu_scheduler_active = 2, debug_locks = 1 [ 57.725034][ T4163] 1 lock held by syz-executor227/4163: [ 57.730502][ T4163] #0: ffffffff8cb20480 (rcu_read_lock_trace){....}-{0:0}, at: rcu_lock_acquire+0x9/0x30 [ 57.740625][ T4163] [ 57.740625][ T4163] stack backtrace: [ 57.746554][ T4163] CPU: 0 PID: 4163 Comm: syz-executor227 Not tainted 5.15.176-syzkaller #0 [ 57.755172][ T4163] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 57.765234][ T4163] Call Trace: [ 57.768503][ T4163] [ 57.771425][ T4163] dump_stack_lvl+0x1e3/0x2d0 [ 57.776099][ T4163] ? io_uring_drop_tctx_refs+0x1a0/0x1a0 [ 57.781728][ T4163] ? lockdep_rcu_suspicious+0x158/0x1c0 [ 57.787271][ T4163] perf_callchain_kernel+0x38b/0x6e0 [ 57.792555][ T4163] ? io_uring_drop_tctx_refs+0x1a0/0x1a0 [ 57.798188][ T4163] ? arch_perf_update_userpage+0x450/0x450 [ 57.804016][ T4163] ? lockdep_rcu_suspicious+0x158/0x1c0 [ 57.809571][ T4163] ? get_callchain_entry+0x186/0x3c0 [ 57.814844][ T4163] get_perf_callchain+0x579/0x810 [ 57.819862][ T4163] ? put_callchain_entry+0xb0/0xb0 [ 57.824964][ T4163] ? __lock_acquire+0x1295/0x1ff0 [ 57.829995][ T4163] __bpf_get_stack+0x378/0x570 [ 57.834839][ T4163] ? stack_map_get_build_id_offset+0x930/0x930 [ 57.840979][ T4163] ? __cant_sleep+0x270/0x270 [ 57.845641][ T4163] bpf_get_stack_raw_tp+0x1b2/0x220 [ 57.850831][ T4163] bpf_prog_0f38b8827da495ce+0x3a/0x92c [ 57.856360][ T4163] bpf_prog_run_pin_on_cpu+0x62/0x130 [ 57.861717][ T4163] bpf_prog_test_run_syscall+0x366/0x550 [ 57.867335][ T4163] ? __lock_acquire+0x1ff0/0x1ff0 [ 57.872353][ T4163] ? sock_gen_cookie+0x60/0x60 [ 57.877107][ T4163] ? __fdget+0x158/0x220 [ 57.881337][ T4163] ? sock_gen_cookie+0x60/0x60 [ 57.886087][ T4163] bpf_prog_test_run+0x32f/0x3a0 [ 57.891016][ T4163] __sys_bpf+0x3ac/0x670 [ 57.895293][ T4163] ? bpf_link_show_fdinfo+0x300/0x300 [ 57.900682][ T4163] ? syscall_enter_from_user_mode+0x2e/0x240 [ 57.906656][ T4163] ? lockdep_hardirqs_on+0x94/0x130 [ 57.911849][ T4163] __x64_sys_bpf+0x78/0x90 [ 57.916344][ T4163] do_syscall_64+0x3b/0xb0 [ 57.920774][ T4163] ? clear_bhb_loop+0x15/0x70 [ 57.925459][ T4163] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 57.931344][ T4163] RIP: 0033:0x7f1744607eb9 [ 57.935749][ T4163] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 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 [ 57.955342][ T4163] RSP: 002b:00007ffc728e1e38 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 executing program executing program executing program executing program [ 57.963748][ T4163] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1744607eb9 [ 57.971848][ T4163] RDX: 000000000000000c RSI: 00000000200004c0 RDI: 000000000000000a [ 57.979813][ T4163] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006 [ 57.987799][ T4163] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 57.995760][ T4163] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001 [ 58.003733][ T4163] executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program