Warning: Permanently added '10.128.1.30' (ED25519) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 71.798860][ T4260] [ 71.801396][ T4260] ============================================ [ 71.807707][ T4260] WARNING: possible recursive locking detected [ 71.814393][ T4260] 6.1.141-syzkaller #0 Not tainted [ 71.820415][ T4260] -------------------------------------------- [ 71.826831][ T4260] syz-executor151/4260 is trying to acquire lock: [ 71.833502][ T4260] ffff88807a5fa218 (&qs->lock){-.-.}-{2:2}, at: __queue_map_get+0x118/0x4a0 [ 71.842304][ T4260] [ 71.842304][ T4260] but task is already holding lock: [ 71.849842][ T4260] ffff888030b29218 (&qs->lock){-.-.}-{2:2}, at: __queue_map_get+0x118/0x4a0 [ 71.858893][ T4260] [ 71.858893][ T4260] other info that might help us debug this: [ 71.867121][ T4260] Possible unsafe locking scenario: [ 71.867121][ T4260] [ 71.874840][ T4260] CPU0 [ 71.878487][ T4260] ---- [ 71.882694][ T4260] lock(&qs->lock); [ 71.886775][ T4260] lock(&qs->lock); [ 71.890935][ T4260] [ 71.890935][ T4260] *** DEADLOCK *** [ 71.890935][ T4260] [ 71.899414][ T4260] May be due to missing lock nesting notation [ 71.899414][ T4260] [ 71.910416][ T4260] 4 locks held by syz-executor151/4260: [ 71.917269][ T4260] #0: ffff888075f7cf78 (&tsk->futex_exit_mutex){+.+.}-{3:3}, at: futex_exit_release+0x2f/0x1c0 [ 71.930193][ T4260] #1: ffffffff8c92aaa0 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run2+0xda/0x3b0 [ 71.944623][ T4260] #2: ffff888030b29218 (&qs->lock){-.-.}-{2:2}, at: __queue_map_get+0x118/0x4a0 [ 71.953823][ T4260] #3: ffffffff8c92aaa0 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run2+0xda/0x3b0 [ 71.963560][ T4260] [ 71.963560][ T4260] stack backtrace: [ 71.969835][ T4260] CPU: 0 PID: 4260 Comm: syz-executor151 Not tainted 6.1.141-syzkaller #0 [ 71.978792][ T4260] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 71.989400][ T4260] Call Trace: [ 71.992692][ T4260] [ 71.995731][ T4260] dump_stack_lvl+0x168/0x22e [ 72.000628][ T4260] ? show_regs_print_info+0x12/0x12 [ 72.005914][ T4260] ? load_image+0x3b0/0x3b0 [ 72.010622][ T4260] __lock_acquire+0x122f/0x7c50 [ 72.015468][ T4260] ? unwind_get_return_address+0x49/0x80 [ 72.021107][ T4260] ? __lock_acquire+0x12e5/0x7c50 [ 72.026147][ T4260] ? verify_lock_unused+0x140/0x140 [ 72.031778][ T4260] ? mark_lock+0x94/0x320 [ 72.036189][ T4260] ? __lock_acquire+0x12e5/0x7c50 [ 72.041206][ T4260] ? mark_lock+0x94/0x320 [ 72.045548][ T4260] lock_acquire+0x1b4/0x490 [ 72.050158][ T4260] ? __queue_map_get+0x118/0x4a0 [ 72.055106][ T4260] ? read_lock_is_recursive+0x10/0x10 [ 72.060512][ T4260] ? mark_lock+0x94/0x320 [ 72.064840][ T4260] _raw_spin_lock_irqsave+0xa4/0xf0 [ 72.070031][ T4260] ? __queue_map_get+0x118/0x4a0 [ 72.075020][ T4260] ? _raw_spin_lock+0x40/0x40 [ 72.079796][ T4260] ? register_lock_class+0xb1/0x860 [ 72.084998][ T4260] __queue_map_get+0x118/0x4a0 [ 72.089769][ T4260] ? stack_map_peek_elem+0x20/0x20 [ 72.095360][ T4260] ? __cant_sleep+0x210/0x210 [ 72.100103][ T4260] ? __lock_acquire+0x13c0/0x7c50 [ 72.105149][ T4260] bpf_prog_00798911c748094f+0x3a/0x3e [ 72.110796][ T4260] bpf_trace_run2+0x1cd/0x3b0 [ 72.115568][ T4260] ? arch_stack_walk+0xf2/0x140 [ 72.120538][ T4260] ? bpf_trace_run2+0xda/0x3b0 [ 72.125437][ T4260] ? bpf_trace_run1+0x3b0/0x3b0 [ 72.130379][ T4260] ? __bpf_trace_contention_begin+0x10/0x10 [ 72.136369][ T4260] __traceiter_contention_end+0x74/0xa0 [ 72.142061][ T4260] trace_contention_end+0x13f/0x190 [ 72.147290][ T4260] __pv_queued_spin_lock_slowpath+0x7e8/0x9c0 [ 72.153349][ T4260] ? __pv_queued_spin_unlock_slowpath+0x290/0x290 [ 72.160311][ T4260] queued_spin_lock_slowpath+0x43/0x50 [ 72.166091][ T4260] do_raw_spin_lock+0x217/0x280 [ 72.170962][ T4260] ? __rwlock_init+0x140/0x140 [ 72.176247][ T4260] _raw_spin_lock_irqsave+0xb0/0xf0 [ 72.181647][ T4260] ? _raw_spin_lock+0x40/0x40 [ 72.186352][ T4260] __queue_map_get+0x118/0x4a0 [ 72.191675][ T4260] ? stack_map_peek_elem+0x20/0x20 [ 72.197524][ T4260] ? __cant_sleep+0x210/0x210 [ 72.203933][ T4260] ? mark_lock+0x94/0x320 [ 72.208621][ T4260] bpf_prog_00798911c748094f+0x3a/0x3e [ 72.214368][ T4260] bpf_trace_run2+0x1cd/0x3b0 [ 72.219461][ T4260] ? bpf_trace_run2+0xda/0x3b0 [ 72.224242][ T4260] ? bpf_trace_run1+0x3b0/0x3b0 [ 72.229097][ T4260] ? __mutex_trylock_common+0x14f/0x250 [ 72.234649][ T4260] ? __bpf_trace_contention_begin+0x10/0x10 [ 72.240532][ T4260] __traceiter_contention_end+0x74/0xa0 [ 72.246485][ T4260] trace_contention_end+0x123/0x170 [ 72.252210][ T4260] __mutex_lock+0x194/0xaf0 [ 72.256906][ T4260] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 72.263766][ T4260] ? futex_exit_release+0x2f/0x1c0 [ 72.269811][ T4260] ? lock_chain_count+0x20/0x20 [ 72.274769][ T4260] ? mutex_lock_nested+0x10/0x10 [ 72.279721][ T4260] ? _raw_spin_unlock_irq+0x1f/0x40 [ 72.285212][ T4260] ? lockdep_hardirqs_on+0x94/0x140 [ 72.291020][ T4260] ? _raw_spin_unlock_irq+0x2a/0x40 [ 72.296904][ T4260] ? acct_collect+0x588/0x730 [ 72.301591][ T4260] futex_exit_release+0x2f/0x1c0 [ 72.307009][ T4260] exit_mm_release+0x16/0x30 [ 72.311691][ T4260] exit_mm+0xa4/0x2c0 [ 72.316070][ T4260] ? do_exit+0x2400/0x2400 [ 72.320583][ T4260] ? taskstats_exit+0x35a/0x9d0 [ 72.325421][ T4260] do_exit+0x8b9/0x2400 [ 72.329650][ T4260] ? put_task_struct+0x80/0x80 [ 72.334420][ T4260] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 72.340436][ T4260] ? lock_chain_count+0x20/0x20 [ 72.345368][ T4260] ? _raw_spin_lock_irq+0xab/0xe0 [ 72.350384][ T4260] ? _raw_spin_lock_irqsave+0xf0/0xf0 [ 72.355758][ T4260] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 72.361800][ T4260] ? _raw_spin_unlock_irq+0x1f/0x40 [ 72.367193][ T4260] ? lockdep_hardirqs_on+0x94/0x140 [ 72.372509][ T4260] do_group_exit+0x217/0x2d0 [ 72.377445][ T4260] __x64_sys_exit_group+0x3b/0x40 [ 72.382736][ T4260] do_syscall_64+0x4c/0xa0 [ 72.387319][ T4260] ? clear_bhb_loop+0x60/0xb0 [ 72.392087][ T4260] ? clear_bhb_loop+0x60/0xb0 [ 72.397070][ T4260] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 72.403326][ T4260] RIP: 0033:0x7fa7b30be079 [ 72.407732][ T4260] Code: 90 49 c7 c0 b8 ff ff ff be e7 00 00 00 ba 3c 00 00 00 eb 12 0f 1f 44 00 00 89 d0 0f 05 48 3d 00 f0 ff ff 77 1c f4 89 f0 0f 05 <48> 3d 00 f0 ff ff 76 e7 f7 d8 64 41 89 00 eb df 0f 1f 80 00 00 00 [ 72.427526][ T4260] RSP: 002b:00007fff7e6ed7d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 72.436183][ T4260] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa7b30be079 executing program executing program executing program executing program executing program [ 72.444705][ T4260] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 [ 72.453482][ T4260] RBP: 00007fa7b31392b0 R08: ffffffffffffffb8 R09: 00000000000000a0 [ 72.462694][ T4260] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa7b31392b0 [ 72.470843][ T4260] R13: 0000000000000000 R14: 00007fa7b3139d20 R15: 00007fa7b308f210 [ 72.478815][ T4260] executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program