netlink: 12 bytes leftover after parsing attributes in process `syz-executor.5'.
BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 1 PID: 11074 Comm: syz-executor.5 Not tainted 5.8.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x18f/0x20d lib/dump_stack.c:118
 add_chain_cache kernel/locking/lockdep.c:3063 [inline]
 lookup_chain_cache_add kernel/locking/lockdep.c:3162 [inline]
 validate_chain kernel/locking/lockdep.c:3183 [inline]
 __lock_acquire.cold+0x11/0x3f8 kernel/locking/lockdep.c:4380
 lock_acquire+0x1f1/0xad0 kernel/locking/lockdep.c:4959
 write_seqcount_begin_nested include/linux/seqlock.h:408 [inline]
 write_seqcount_begin include/linux/seqlock.h:413 [inline]
 psi_group_change+0xd3/0x710 kernel/sched/psi.c:691
 psi_task_switch+0x2fb/0x400 kernel/sched/psi.c:817
 psi_sched_switch kernel/sched/stats.h:144 [inline]
 __schedule+0xa16/0x1eb0 kernel/sched/core.c:4173
 preempt_schedule_irq+0xb0/0x150 kernel/sched/core.c:4436
 idtentry_exit_cond_resched arch/x86/entry/common.c:663 [inline]
 idtentry_exit_cond_rcu+0xc0/0xf0 arch/x86/entry/common.c:710
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:587
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:765 [inline]
RIP: 0010:kmem_cache_free+0xa4/0x310 mm/slab.c:3695
Code: e8 d1 28 00 00 84 c0 74 76 41 f7 c4 00 02 00 00 74 4e e8 7f 9b c6 ff 48 83 3d d7 0c 02 08 00 0f 84 62 02 00 00 4c 89 e7 57 9d <0f> 1f 44 00 00 4c 8b 64 24 20 0f 1f 44 00 00 65 8b 05 96 bf 4e 7e
RSP: 0018:ffffc90007cc6b18 EFLAGS: 00000282
RAX: 00000000000001c3 RBX: ffff888066a27700 RCX: 0000000000000006
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000282
RBP: ffff88821b77e8c0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000282
R13: ffffffff862e043f R14: ffffffff8a7ab500 R15: 0000000000000000
 kfree_skbmem+0xef/0x1b0 net/core/skbuff.c:622
 __kfree_skb net/core/skbuff.c:679 [inline]
 consume_skb net/core/skbuff.c:837 [inline]
 consume_skb+0xcf/0x160 net/core/skbuff.c:831
 netlink_broadcast_filtered+0x35c/0xdc0 net/netlink/af_netlink.c:1513
 netlink_broadcast+0x35/0x40 net/netlink/af_netlink.c:1535
 uevent_net_broadcast_tagged lib/kobject_uevent.c:371 [inline]
 kobject_uevent_net_broadcast lib/kobject_uevent.c:411 [inline]
 kobject_uevent_env+0x1052/0x12c0 lib/kobject_uevent.c:592
 rx_queue_add_kobject net/core/net-sysfs.c:970 [inline]
 net_rx_queue_update_kobjects+0xee/0x440 net/core/net-sysfs.c:1010
 register_queue_kobjects net/core/net-sysfs.c:1644 [inline]
 netdev_register_kobject+0x271/0x3b0 net/core/net-sysfs.c:1892
 register_netdevice+0xd29/0x1540 net/core/dev.c:9514
 __vxlan_dev_create+0x43f/0xc40 drivers/net/vxlan.c:3834
 vxlan_newlink+0xbc/0x110 drivers/net/vxlan.c:4183
 __rtnl_newlink+0x1090/0x1730 net/core/rtnetlink.c:3339
 rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3397
 rtnetlink_rcv_msg+0x44e/0xad0 net/core/rtnetlink.c:5460
 netlink_rcv_skb+0x15a/0x430 net/netlink/af_netlink.c:2469
 netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline]
 netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1329
 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1918
 sock_sendmsg_nosec net/socket.c:652 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:672
 sock_no_sendpage+0xee/0x130 net/core/sock.c:2853
 kernel_sendpage net/socket.c:3642 [inline]
 sock_sendpage+0xe5/0x140 net/socket.c:945
 pipe_to_sendpage+0x2ad/0x380 fs/splice.c:448
 splice_from_pipe_feed fs/splice.c:502 [inline]
 __splice_from_pipe+0x3dc/0x830 fs/splice.c:626
 splice_from_pipe fs/splice.c:661 [inline]
 generic_splice_sendpage+0xd4/0x140 fs/splice.c:834
 do_splice_from fs/splice.c:846 [inline]
 do_splice+0xbcd/0x1820 fs/splice.c:1144
 __do_sys_splice fs/splice.c:1419 [inline]
 __se_sys_splice fs/splice.c:1401 [inline]
 __x64_sys_splice+0x198/0x250 fs/splice.c:1401
 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:384
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45c1d9
Code: Bad RIP value.
RSP: 002b:00007fb64cb69c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000113
RAX: ffffffffffffffda RBX: 0000000000030f80 RCX: 000000000045c1d9
RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 000000000078bff8 R08: 000000000004ffe6 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000078bfac
R13: 0000000000c9fb6f R14: 00007fb64cb6a9c0 R15: 000000000078bfac