------------[ cut here ]------------ lockdep bfs error:-1 WARNING: CPU: 0 PID: 10313 at kernel/locking/lockdep.c:2079 print_bfs_bug+0x22/0x30 kernel/locking/lockdep.c:2079 Modules linked in: CPU: 0 PID: 10313 Comm: syz-executor406 Not tainted 6.5.0-rc1-next-20230714-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023 RIP: 0010:print_bfs_bug+0x22/0x30 kernel/locking/lockdep.c:2079 Code: 84 00 00 00 00 00 66 90 55 89 fd 53 e8 a7 ce b6 02 89 c3 e8 60 fd ff ff 85 db 74 10 89 ee 48 c7 c7 80 7e 6c 8a e8 fe de e6 ff <0f> 0b 5b 5d c3 66 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 48 b8 00 00 RSP: 0018:ffffc9000df86898 EFLAGS: 00010086 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: ffff88807d868000 RSI: ffffffff814d5986 RDI: 0000000000000001 RBP: 00000000ffffffff R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffff88807d868b90 R13: ffff88807d868bb8 R14: ffffc9000df869d0 R15: ffffffff918610d0 FS: 00005555564cd380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7d4118f100 CR3: 000000003c1d8000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: check_irq_usage+0x10c6/0x1c70 kernel/locking/lockdep.c:2832 check_prev_add kernel/locking/lockdep.c:3146 [inline] check_prevs_add kernel/locking/lockdep.c:3261 [inline] validate_chain kernel/locking/lockdep.c:3876 [inline] __lock_acquire+0x2e53/0x5de0 kernel/locking/lockdep.c:5144 lock_acquire kernel/locking/lockdep.c:5761 [inline] lock_acquire+0x1ae/0x510 kernel/locking/lockdep.c:5726 _raw_spin_lock_nested+0x31/0x40 kernel/locking/spinlock.c:378 raw_spin_rq_lock_nested+0x29/0x130 kernel/sched/core.c:558 raw_spin_rq_lock kernel/sched/sched.h:1366 [inline] rq_lock kernel/sched/sched.h:1675 [inline] __schedule+0x29d/0x59f0 kernel/sched/core.c:6626 preempt_schedule_irq+0x52/0x90 kernel/sched/core.c:7021 irqentry_exit+0x35/0x80 kernel/entry/common.c:433 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645 RIP: 0010:lock_acquire+0x1ef/0x510 kernel/locking/lockdep.c:5729 Code: c1 05 55 dc 9a 7e 83 f8 01 0f 85 b0 02 00 00 9c 58 f6 c4 02 0f 85 9b 02 00 00 48 85 ed 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c3 48 c7 03 00 00 00 00 48 c7 43 08 00 00 00 00 48 8b 84 24 RSP: 0018:ffffc9000df87030 EFLAGS: 00000206 RAX: dffffc0000000000 RBX: 1ffff92001bf0e08 RCX: 0000000000000001 RDX: 1ffff1100fb0d158 RSI: ffffffff8a6c7cc0 RDI: ffffffff8ac866c0 RBP: 0000000000000200 R08: 0000000000000000 R09: fffffbfff230afd2 R10: ffffffff91857e97 R11: 0000000000000029 R12: 0000000000000001 R13: 0000000000000000 R14: ffffffff8cb2d080 R15: 0000000000000000 fs_reclaim_acquire mm/page_alloc.c:3654 [inline] fs_reclaim_acquire+0xda/0x160 mm/page_alloc.c:3645 might_alloc include/linux/sched/mm.h:303 [inline] slab_pre_alloc_hook mm/slab.h:709 [inline] slab_alloc_node mm/slub.c:3473 [inline] kmem_cache_alloc_node+0x57/0x3f0 mm/slub.c:3536 __alloc_skb+0x287/0x330 net/core/skbuff.c:634 alloc_skb include/linux/skbuff.h:1289 [inline] nlmsg_new include/net/netlink.h:1003 [inline] genlmsg_new include/net/genetlink.h:491 [inline] __send_and_alloc_skb drivers/net/team/team.c:2431 [inline] team_nl_send_options_get+0x113/0xf30 drivers/net/team/team.c:2454 team_nl_send_event_options_get drivers/net/team/team.c:2871 [inline] team_nl_cmd_options_set+0x9c0/0xdc0 drivers/net/team/team.c:2674 genl_family_rcv_msg_doit.isra.0+0x1ef/0x2d0 net/netlink/genetlink.c:970 genl_family_rcv_msg net/netlink/genetlink.c:1050 [inline] genl_rcv_msg+0x559/0x800 net/netlink/genetlink.c:1067 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2546 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1078 netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline] netlink_unicast+0x539/0x800 net/netlink/af_netlink.c:1365 netlink_sendmsg+0x93c/0xe30 net/netlink/af_netlink.c:1911 sock_sendmsg_nosec net/socket.c:725 [inline] sock_sendmsg+0xd9/0x180 net/socket.c:748 ____sys_sendmsg+0x6ac/0x940 net/socket.c:2494 ___sys_sendmsg+0x135/0x1d0 net/socket.c:2548 __sys_sendmsg+0x117/0x1e0 net/socket.c:2577 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f7d41118c59 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 19 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 RSP: 002b:00007fffd7e94b08 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7d41118c59 RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000006 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001 ---------------- Code disassembly (best guess): 0: c1 05 55 dc 9a 7e 83 roll $0x83,0x7e9adc55(%rip) # 0x7e9adc5c 7: f8 clc 8: 01 0f add %ecx,(%rdi) a: 85 b0 02 00 00 9c test %esi,-0x63fffffe(%rax) 10: 58 pop %rax 11: f6 c4 02 test $0x2,%ah 14: 0f 85 9b 02 00 00 jne 0x2b5 1a: 48 85 ed test %rbp,%rbp 1d: 74 01 je 0x20 1f: fb sti 20: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 27: fc ff df * 2a: 48 01 c3 add %rax,%rbx <-- trapping instruction 2d: 48 c7 03 00 00 00 00 movq $0x0,(%rbx) 34: 48 c7 43 08 00 00 00 movq $0x0,0x8(%rbx) 3b: 00 3c: 48 rex.W 3d: 8b .byte 0x8b 3e: 84 .byte 0x84 3f: 24 .byte 0x24