Warning: Permanently added '10.128.0.54' (ED25519) to the list of known hosts. executing program [ 67.553943][ T4163] [ 67.556378][ T4163] ============================= [ 67.561661][ T4163] WARNING: suspicious RCU usage [ 67.566506][ T4163] 5.15.179-syzkaller #0 Not tainted [ 67.571751][ T4163] ----------------------------- [ 67.576600][ T4163] kernel/events/callchain.c:161 suspicious rcu_dereference_check() usage! [ 67.585128][ T4163] [ 67.585128][ T4163] other info that might help us debug this: [ 67.585128][ T4163] [ 67.595387][ T4163] [ 67.595387][ T4163] rcu_scheduler_active = 2, debug_locks = 1 [ 67.603483][ T4163] 1 lock held by syz-executor401/4163: [ 67.608977][ T4163] #0: ffffffff8cb1fc80 (rcu_read_lock_trace){....}-{0:0}, at: rcu_lock_acquire+0x9/0x30 [ 67.619024][ T4163] [ 67.619024][ T4163] stack backtrace: [ 67.624960][ T4163] CPU: 0 PID: 4163 Comm: syz-executor401 Not tainted 5.15.179-syzkaller #0 [ 67.633566][ T4163] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 67.643619][ T4163] Call Trace: [ 67.646910][ T4163] [ 67.649830][ T4163] dump_stack_lvl+0x1e3/0x2d0 [ 67.654579][ T4163] ? io_uring_drop_tctx_refs+0x1a0/0x1a0 [ 67.660311][ T4163] ? lockdep_rcu_suspicious+0x158/0x1c0 [ 67.665895][ T4163] get_callchain_entry+0x2ac/0x3c0 [ 67.671042][ T4163] get_perf_callchain+0xe6/0x810 [ 67.675977][ T4163] ? put_callchain_entry+0xb0/0xb0 [ 67.681076][ T4163] ? __lock_acquire+0x1295/0x1ff0 [ 67.686114][ T4163] __bpf_get_stack+0x378/0x570 [ 67.691010][ T4163] ? stack_map_get_build_id_offset+0x930/0x930 [ 67.697170][ T4163] ? __cant_sleep+0x270/0x270 [ 67.701885][ T4163] bpf_get_stack_raw_tp+0x1b2/0x220 [ 67.707107][ T4163] bpf_prog_d43750871481577d+0x3d/0xf8c [ 67.712647][ T4163] bpf_prog_run_pin_on_cpu+0x62/0x130 [ 67.718031][ T4163] bpf_prog_test_run_syscall+0x366/0x550 [ 67.723679][ T4163] ? __lock_acquire+0x1ff0/0x1ff0 [ 67.728735][ T4163] ? sock_gen_cookie+0x60/0x60 [ 67.733550][ T4163] ? __fdget+0x158/0x220 [ 67.737836][ T4163] ? sock_gen_cookie+0x60/0x60 [ 67.742606][ T4163] bpf_prog_test_run+0x32f/0x3a0 [ 67.747552][ T4163] __sys_bpf+0x3ac/0x670 [ 67.751780][ T4163] ? bpf_link_show_fdinfo+0x300/0x300 [ 67.757159][ T4163] ? syscall_enter_from_user_mode+0x2e/0x240 [ 67.763146][ T4163] ? lockdep_hardirqs_on+0x94/0x130 [ 67.768340][ T4163] __x64_sys_bpf+0x78/0x90 [ 67.772781][ T4163] do_syscall_64+0x3b/0xb0 [ 67.777182][ T4163] ? clear_bhb_loop+0x15/0x70 [ 67.781884][ T4163] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 67.787806][ T4163] RIP: 0033:0x7fc4cc1aafb9 [ 67.792240][ 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 [ 67.811863][ T4163] RSP: 002b:00007fff8ea28548 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 67.820267][ T4163] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc4cc1aafb9 [ 67.828225][ T4163] RDX: 0000000000000010 RSI: 0000400000000740 RDI: 000000000000000a [ 67.836214][ T4163] RBP: 00004000000000c0 R08: 00000000000000a0 R09: 00000000000000a0 [ 67.844174][ T4163] R10: 0000400000000108 R11: 0000000000000246 R12: 0000000000000000 [ 67.852137][ T4163] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 67.860111][ T4163] [ 67.863581][ T4163] [ 67.866002][ T4163] ============================= [ 67.870921][ T4163] WARNING: suspicious RCU usage [ 67.875747][ T4163] 5.15.179-syzkaller #0 Not tainted [ 67.880968][ T4163] ----------------------------- [ 67.885806][ T4163] include/linux/perf_event.h:1274 suspicious rcu_dereference_check() usage! [ 67.894522][ T4163] [ 67.894522][ T4163] other info that might help us debug this: [ 67.894522][ T4163] [ 67.904880][ T4163] [ 67.904880][ T4163] rcu_scheduler_active = 2, debug_locks = 1 [ 67.912966][ T4163] 1 lock held by syz-executor401/4163: [ 67.918452][ T4163] #0: ffffffff8cb1fc80 (rcu_read_lock_trace){....}-{0:0}, at: rcu_lock_acquire+0x9/0x30 [ 67.928342][ T4163] [ 67.928342][ T4163] stack backtrace: [ 67.934230][ T4163] CPU: 0 PID: 4163 Comm: syz-executor401 Not tainted 5.15.179-syzkaller #0 [ 67.942822][ T4163] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 67.952890][ T4163] Call Trace: [ 67.956156][ T4163] [ 67.959073][ T4163] dump_stack_lvl+0x1e3/0x2d0 [ 67.963785][ T4163] ? io_uring_drop_tctx_refs+0x1a0/0x1a0 [ 67.969436][ T4163] ? lockdep_rcu_suspicious+0x158/0x1c0 [ 67.975060][ T4163] perf_callchain_kernel+0x38b/0x6e0 [ 67.980404][ T4163] ? io_uring_drop_tctx_refs+0x1a0/0x1a0 [ 67.986027][ T4163] ? arch_perf_update_userpage+0x450/0x450 [ 67.991827][ T4163] ? lockdep_rcu_suspicious+0x158/0x1c0 [ 67.997364][ T4163] ? get_callchain_entry+0x186/0x3c0 [ 68.002637][ T4163] get_perf_callchain+0x579/0x810 [ 68.007651][ T4163] ? put_callchain_entry+0xb0/0xb0 [ 68.012745][ T4163] ? __lock_acquire+0x1295/0x1ff0 [ 68.017768][ T4163] __bpf_get_stack+0x378/0x570 [ 68.022545][ T4163] ? stack_map_get_build_id_offset+0x930/0x930 [ 68.028688][ T4163] ? __cant_sleep+0x270/0x270 [ 68.033354][ T4163] bpf_get_stack_raw_tp+0x1b2/0x220 [ 68.038543][ T4163] bpf_prog_d43750871481577d+0x3d/0xf8c [ 68.044088][ T4163] bpf_prog_run_pin_on_cpu+0x62/0x130 [ 68.049487][ T4163] bpf_prog_test_run_syscall+0x366/0x550 [ 68.055106][ T4163] ? __lock_acquire+0x1ff0/0x1ff0 [ 68.060123][ T4163] ? sock_gen_cookie+0x60/0x60 [ 68.064876][ T4163] ? __fdget+0x158/0x220 [ 68.069111][ T4163] ? sock_gen_cookie+0x60/0x60 [ 68.073879][ T4163] bpf_prog_test_run+0x32f/0x3a0 [ 68.078845][ T4163] __sys_bpf+0x3ac/0x670 [ 68.083080][ T4163] ? bpf_link_show_fdinfo+0x300/0x300 [ 68.088461][ T4163] ? syscall_enter_from_user_mode+0x2e/0x240 [ 68.094435][ T4163] ? lockdep_hardirqs_on+0x94/0x130 [ 68.099627][ T4163] __x64_sys_bpf+0x78/0x90 [ 68.104038][ T4163] do_syscall_64+0x3b/0xb0 [ 68.108464][ T4163] ? clear_bhb_loop+0x15/0x70 [ 68.113131][ T4163] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 68.119016][ T4163] RIP: 0033:0x7fc4cc1aafb9 [ 68.123424][ 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 [ 68.143020][ T4163] RSP: 002b:00007fff8ea28548 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 executing program executing program executing program [ 68.151424][ T4163] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc4cc1aafb9 [ 68.159386][ T4163] RDX: 0000000000000010 RSI: 0000400000000740 RDI: 000000000000000a [ 68.167343][ T4163] RBP: 00004000000000c0 R08: 00000000000000a0 R09: 00000000000000a0 [ 68.175296][ T4163] R10: 0000400000000108 R11: 0000000000000246 R12: 0000000000000000 [ 68.183251][ T4163] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 68.191223][ 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