============================= [ BUG: Invalid wait context ] 6.12.0-rc6-next-20241105-syzkaller #0 Not tainted ----------------------------- syz.4.39/6148 is trying to lock: ffff88805cd57a00 (&trie->lock){....}-{3:3}, at: trie_delete_elem+0x96/0x6a0 kernel/bpf/lpm_trie.c:462 other info that might help us debug this: context-{5:5} 3 locks held by syz.4.39/6148: #0: ffffffff8e991468 (tracepoints_mutex){+.+.}-{4:4}, at: tracepoint_probe_register_prio_may_exist+0xbb/0x190 kernel/tracepoint.c:431 #1: ffff8880b873e798 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:598 #2: ffffffff8e93c160 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline] #2: ffffffff8e93c160 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline] #2: ffffffff8e93c160 (rcu_read_lock){....}-{1:3}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2339 [inline] #2: ffffffff8e93c160 (rcu_read_lock){....}-{1:3}, at: bpf_trace_run4+0x244/0x590 kernel/trace/bpf_trace.c:2383 stack backtrace: CPU: 1 UID: 0 PID: 6148 Comm: syz.4.39 Not tainted 6.12.0-rc6-next-20241105-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 print_lock_invalid_wait_context kernel/locking/lockdep.c:4826 [inline] check_wait_context kernel/locking/lockdep.c:4898 [inline] __lock_acquire+0x15a8/0x2100 kernel/locking/lockdep.c:5176 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162 trie_delete_elem+0x96/0x6a0 kernel/bpf/lpm_trie.c:462 bpf_prog_ed70c21c0b06eb42+0x4e/0x52 bpf_dispatcher_nop_func include/linux/bpf.h:1290 [inline] __bpf_prog_run include/linux/filter.h:701 [inline] bpf_prog_run include/linux/filter.h:708 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2340 [inline] bpf_trace_run4+0x334/0x590 kernel/trace/bpf_trace.c:2383 __traceiter_sched_switch+0x98/0xd0 include/trace/events/sched.h:222 trace_sched_switch include/trace/events/sched.h:222 [inline] __schedule+0x22bb/0x4c30 kernel/sched/core.c:6704 preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6886 preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6910 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] _raw_spin_unlock_irqrestore+0x130/0x140 kernel/locking/spinlock.c:194 debug_object_activate+0x3f7/0x580 lib/debugobjects.c:836 debug_rcu_head_queue kernel/rcu/rcu.h:224 [inline] __call_rcu_common kernel/rcu/tree.c:3071 [inline] call_rcu+0x97/0xa70 kernel/rcu/tree.c:3190 release_probes kernel/tracepoint.c:118 [inline] tracepoint_add_func+0x705/0xaa0 kernel/tracepoint.c:340 tracepoint_probe_register_prio_may_exist+0x122/0x190 kernel/tracepoint.c:435 bpf_raw_tp_link_attach+0x4a3/0x700 kernel/bpf/syscall.c:3981 bpf_raw_tracepoint_open+0x177/0x1f0 kernel/bpf/syscall.c:4012 __sys_bpf+0x3c0/0x810 kernel/bpf/syscall.c:5827 __do_sys_bpf kernel/bpf/syscall.c:5892 [inline] __se_sys_bpf kernel/bpf/syscall.c:5890 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5890 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f31bc97e719 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f31bd7d2038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f31bcb36130 RCX: 00007f31bc97e719 RDX: 0000000000000010 RSI: 0000000020000000 RDI: 0000000000000011 RBP: 00007f31bc9f139e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f31bcb36130 R15: 00007ffface53968