------------[ cut here ]------------ lockdep bfs error:-1 WARNING: CPU: 0 PID: 8737 at kernel/locking/lockdep.c:2022 print_bfs_bug+0x22/0x30 kernel/locking/lockdep.c:2022 Modules linked in: CPU: 0 PID: 8737 Comm: syz-executor307 Not tainted 5.15.112-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 RIP: 0010:print_bfs_bug+0x22/0x30 kernel/locking/lockdep.c:2022 Code: ff ff e8 f1 7e b7 08 90 55 53 89 fb e8 47 eb 9f 02 89 c5 e8 e0 1e ff ff 85 ed 74 10 48 c7 c7 e0 13 8b 8a 89 de e8 0e c3 e8 ff <0f> 0b 5b 5d c3 66 0f 1f 84 00 00 00 00 00 55 41 57 41 56 41 55 41 RSP: 0018:ffffc9000e3ae368 EFLAGS: 00010046 RAX: 98546085326b7500 RBX: 00000000ffffffff RCX: ffff888024108000 RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000000 RBP: 0000000000000001 R08: ffffffff8166391c R09: ffffed1017344f24 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff90ff9f48 R13: 000000000001c601 R14: ffffffff8f9bbcb0 R15: ffffffff90ff9ed8 FS: 000055555632d300(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000561640b21118 CR3: 000000004e087000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: check_irq_usage kernel/locking/lockdep.c:2747 [inline] check_prev_add kernel/locking/lockdep.c:3057 [inline] check_prevs_add kernel/locking/lockdep.c:3172 [inline] validate_chain+0x40ee/0x58b0 kernel/locking/lockdep.c:3787 __lock_acquire+0x1295/0x1ff0 kernel/locking/lockdep.c:5011 lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5622 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154 update_cfs_rq_load_avg kernel/sched/fair.c:3724 [inline] update_load_avg+0x206/0x1110 kernel/sched/fair.c:3879 put_prev_entity+0x244/0x600 kernel/sched/fair.c:4799 pick_next_task_fair+0x36e/0x9c0 kernel/sched/fair.c:7585 __pick_next_task kernel/sched/core.c:5646 [inline] pick_next_task kernel/sched/core.c:5754 [inline] __schedule+0x86d/0x4590 kernel/sched/core.c:6336 preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6776 irqentry_exit+0x53/0x80 kernel/entry/common.c:426 asm_sysvec_reschedule_ipi+0x16/0x20 arch/x86/include/asm/idtentry.h:643 RIP: 0010:lock_acquire+0x252/0x4f0 kernel/locking/lockdep.c:5626 Code: 2b 00 74 08 4c 89 f7 e8 bc e4 66 00 f6 44 24 61 02 0f 85 84 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25 RSP: 0018:ffffc9000e3aed60 EFLAGS: 00000206 RAX: 0000000000000001 RBX: 1ffff92001c75db8 RCX: ffffffff913c0003 RDX: dffffc0000000000 RSI: ffffffff8a8b0e00 RDI: ffffffff8ad85d40 RBP: ffffc9000e3aeeb8 R08: dffffc0000000000 R09: fffffbfff1f79023 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92001c75db4 R13: dffffc0000000000 R14: ffffc9000e3aedc0 R15: 0000000000000246 fs_reclaim_acquire+0xa7/0x120 mm/page_alloc.c:4564 might_alloc include/linux/sched/mm.h:206 [inline] slab_pre_alloc_hook+0x22/0xc0 mm/slab.h:492 slab_alloc_node mm/slub.c:3134 [inline] kmem_cache_alloc_node+0x49/0x2c0 mm/slub.c:3256 __alloc_skb+0xdd/0x590 net/core/skbuff.c:415 alloc_skb include/linux/skbuff.h:1167 [inline] nlmsg_new include/net/netlink.h:953 [inline] genlmsg_new include/net/genetlink.h:409 [inline] __send_and_alloc_skb drivers/net/team/team.c:2425 [inline] team_nl_send_options_get+0x17a/0x1530 drivers/net/team/team.c:2448 team_nl_send_event_options_get drivers/net/team/team.c:2864 [inline] team_nl_cmd_options_set+0xea9/0x1240 drivers/net/team/team.c:2668 genl_family_rcv_msg_doit net/netlink/genetlink.c:731 [inline] genl_family_rcv_msg net/netlink/genetlink.c:775 [inline] genl_rcv_msg+0xfbd/0x14a0 net/netlink/genetlink.c:792 netlink_rcv_skb+0x1cf/0x410 net/netlink/af_netlink.c:2504 genl_rcv+0x24/0x40 net/netlink/genetlink.c:803 netlink_unicast_kernel net/netlink/af_netlink.c:1330 [inline] netlink_unicast+0x7b6/0x980 net/netlink/af_netlink.c:1356 netlink_sendmsg+0xa30/0xd60 net/netlink/af_netlink.c:1923 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg net/socket.c:724 [inline] ____sys_sendmsg+0x59e/0x8f0 net/socket.c:2412 ___sys_sendmsg+0x252/0x2e0 net/socket.c:2466 __sys_sendmsg net/socket.c:2495 [inline] __do_sys_sendmsg net/socket.c:2504 [inline] __se_sys_sendmsg+0x19a/0x260 net/socket.c:2502 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f89a5924b29 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 14 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 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffd6f33c8e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00000000000af7d3 RCX: 00007f89a5924b29 RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffd6f33ca88 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd6f33c8fc R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 ---------------- Code disassembly (best guess): 0: 2b 00 sub (%rax),%eax 2: 74 08 je 0xc 4: 4c 89 f7 mov %r14,%rdi 7: e8 bc e4 66 00 callq 0x66e4c8 c: f6 44 24 61 02 testb $0x2,0x61(%rsp) 11: 0f 85 84 01 00 00 jne 0x19b 17: 41 f7 c7 00 02 00 00 test $0x200,%r15d 1e: 74 01 je 0x21 20: fb sti 21: 48 c7 44 24 40 0e 36 movq $0x45e0360e,0x40(%rsp) 28: e0 45 * 2a: 4b c7 44 25 00 00 00 movq $0x0,0x0(%r13,%r12,1) <-- trapping instruction 31: 00 00 33: 43 c7 44 25 09 00 00 movl $0x0,0x9(%r13,%r12,1) 3a: 00 00 3c: 43 rex.XB 3d: c7 .byte 0xc7 3e: 44 rex.R 3f: 25 .byte 0x25