============================= [ BUG: Invalid wait context ] 6.12.0-rc6-next-20241106-syzkaller #0 Not tainted ----------------------------- syz-executor/5834 is trying to lock: ffff88802a3c2a00 (&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} 2 locks held by syz-executor/5834: #0: ffff8880b873e798 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:598 #1: ffffffff8e93c160 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline] #1: ffffffff8e93c160 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline] #1: ffffffff8e93c160 (rcu_read_lock){....}-{1:3}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2339 [inline] #1: 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: 5834 Comm: syz-executor Not tainted 6.12.0-rc6-next-20241106-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_5186c38a4019a4cb+0x4b/0x4f 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 __schedule_loop kernel/sched/core.c:6784 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6799 do_nanosleep+0x197/0x600 kernel/time/hrtimer.c:2032 hrtimer_nanosleep+0x1e3/0x3f0 kernel/time/hrtimer.c:2080 __do_sys_clock_nanosleep kernel/time/posix-timers.c:1408 [inline] __se_sys_clock_nanosleep+0x32b/0x3c0 kernel/time/posix-timers.c:1385 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: 0033:0x7f661abb0805 Code: 24 0c 89 3c 24 48 89 4c 24 18 e8 c6 57 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 8b 74 24 0c 8b 3c 24 b8 e6 00 00 00 0f 05 <44> 89 c7 48 89 04 24 e8 1f 58 ff ff 48 8b 04 24 48 83 c4 28 f7 d8 RSP: 002b:00007ffd5f37dc50 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6 RAX: ffffffffffffffda RBX: 0000000000000398 RCX: 00007f661abb0805 RDX: 00007ffd5f37dc90 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007ffd5f37dcec R08: 0000000000000000 R09: 7fffffffffffffff R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000032 R13: 00000000000380ce R14: 00000000000380af R15: 00007ffd5f37dd40