netlink: 4 bytes leftover after parsing attributes in process `syz-executor'. ------------[ cut here ]------------ lockdep bfs error:-1 WARNING: CPU: 2 PID: 14911 at kernel/locking/lockdep.c:2071 print_bfs_bug+0x24/0x30 kernel/locking/lockdep.c:2071 Modules linked in: CPU: 2 PID: 14911 Comm: syz-executor Not tainted 6.10.0-rc5-syzkaller-00012-g626737a5791b #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:print_bfs_bug+0x24/0x30 kernel/locking/lockdep.c:2071 Code: 90 90 90 90 90 90 55 89 fd 53 e8 37 85 15 03 89 c3 e8 50 fd ff ff 85 db 74 14 90 48 c7 c7 60 b4 2c 8b 89 ee e8 6d 15 e5 ff 90 <0f> 0b 90 90 5b 5d c3 cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc900072167e8 EFLAGS: 00010082 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff81500069 RDX: ffff88806047a440 RSI: ffffffff81500076 RDI: 0000000000000001 RBP: 00000000ffffffff R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 000000002d2d2d2d R12: ffff88806047afc0 R13: ffff88806047afe8 R14: ffffc90007216900 R15: dffffc0000000000 FS: 00007efc713526c0(0000) GS:ffff88806b200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2d601a8000 CR3: 0000000066bcc000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: check_irq_usage+0xe4a/0x1490 kernel/locking/lockdep.c:2824 check_prev_add kernel/locking/lockdep.c:3138 [inline] check_prevs_add kernel/locking/lockdep.c:3253 [inline] validate_chain kernel/locking/lockdep.c:3869 [inline] __lock_acquire+0x248e/0x3b30 kernel/locking/lockdep.c:5137 lock_acquire kernel/locking/lockdep.c:5754 [inline] lock_acquire+0x1b1/0x560 kernel/locking/lockdep.c:5719 do_write_seqcount_begin_nested include/linux/seqlock.h:469 [inline] do_write_seqcount_begin include/linux/seqlock.h:495 [inline] psi_group_change+0x10c/0xdc0 kernel/sched/psi.c:787 psi_task_switch+0x20c/0x900 kernel/sched/psi.c:976 psi_sched_switch kernel/sched/stats.h:185 [inline] __schedule+0x2587/0x5d00 kernel/sched/core.c:6740 preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:6924 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12 __raw_read_unlock_irqrestore include/linux/rwlock_api_smp.h:242 [inline] _raw_read_unlock_irqrestore+0x61/0x80 kernel/locking/spinlock.c:268 netlink_lock_table net/netlink/af_netlink.c:472 [inline] netlink_broadcast_filtered+0x102/0xf10 net/netlink/af_netlink.c:1541 nlmsg_multicast_filtered include/net/netlink.h:1125 [inline] genlmsg_multicast_netns_filtered include/net/genetlink.h:491 [inline] genlmsg_multicast_netns include/net/genetlink.h:508 [inline] team_nl_send_multicast+0xef/0x170 drivers/net/team/team_core.c:2825 team_nl_send_options_get+0xc69/0xe50 drivers/net/team/team_core.c:2488 team_nl_send_event_options_get drivers/net/team/team_core.c:2832 [inline] __team_options_change_check+0x1b4/0x2b0 drivers/net/team/team_core.c:2868 team_options_register+0x40/0x50 drivers/net/team/team_core.c:343 __team_change_mode+0x1bc/0x290 drivers/net/team/team_core.c:579 team_change_mode drivers/net/team/team_core.c:613 [inline] team_mode_option_set+0x25b/0x4e0 drivers/net/team/team_core.c:1388 team_option_set drivers/net/team/team_core.c:375 [inline] team_nl_options_set_doit+0x8b3/0xe20 drivers/net/team/team_core.c:2650 genl_family_rcv_msg_doit+0x202/0x2f0 net/netlink/genetlink.c:1115 genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline] genl_rcv_msg+0x565/0x800 net/netlink/genetlink.c:1210 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2564 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1335 [inline] netlink_unicast+0x542/0x820 net/netlink/af_netlink.c:1361 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1905 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] ____sys_sendmsg+0xab5/0xc90 net/socket.c:2585 ___sys_sendmsg+0x135/0x1e0 net/socket.c:2639 __sys_sendmsg+0x117/0x1f0 net/socket.c:2668 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7efc7067cee9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007efc713520c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007efc707abf80 RCX: 00007efc7067cee9 RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000005 RBP: 00007efc706c949e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007efc707abf80 R15: 00007ffe011c6928