write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory
BUG: memory leak
unreferenced object 0xffff888113f35440 (size 64):
  comm "syz-executor683", pid 8729, jiffies 4294960051 (age 13.510s)
  hex dump (first 32 bytes):
    01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 01 00 00 00 01 02 00 04  ................
  backtrace:
    [<00000000815375e7>] kmalloc include/linux/slab.h:557 [inline]
    [<00000000815375e7>] mrp_attr_create net/802/mrp.c:276 [inline]
    [<00000000815375e7>] mrp_request_join+0x153/0x260 net/802/mrp.c:530
    [<0000000088eb4b90>] vlan_mvrp_request_join+0x96/0xa0 net/8021q/vlan_mvrp.c:40
    [<0000000060dfce19>] vlan_dev_open+0x1e7/0x330 net/8021q/vlan_dev.c:292
    [<00000000b87859c5>] __dev_open+0x175/0x260 net/core/dev.c:1510
    [<00000000ff948be9>] __dev_change_flags+0x2fd/0x390 net/core/dev.c:8460
    [<0000000062ee3833>] rtnl_configure_link+0x64/0x130 net/core/rtnetlink.c:3125
    [<00000000a19edecf>] __rtnl_newlink+0xa7e/0xdc0 net/core/rtnetlink.c:3462
    [<0000000085a4c7a0>] rtnl_newlink+0x49/0x70 net/core/rtnetlink.c:3502
    [<000000001f83ca0d>] rtnetlink_rcv_msg+0x1fc/0x520 net/core/rtnetlink.c:5564
    [<00000000a28aabae>] netlink_rcv_skb+0x87/0x1d0 net/netlink/af_netlink.c:2494
    [<00000000481e9b96>] netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline]
    [<00000000481e9b96>] netlink_unicast+0x392/0x4c0 net/netlink/af_netlink.c:1330
    [<000000002b9af0bd>] netlink_sendmsg+0x368/0x6a0 net/netlink/af_netlink.c:1919
    [<00000000a2c6e234>] sock_sendmsg_nosec net/socket.c:652 [inline]
    [<00000000a2c6e234>] sock_sendmsg+0x56/0x80 net/socket.c:672
    [<0000000002b4efeb>] ____sys_sendmsg+0x36c/0x390 net/socket.c:2336
    [<000000001973710c>] ___sys_sendmsg+0x8b/0xd0 net/socket.c:2390
    [<000000000441c39b>] __sys_sendmsg+0x88/0x100 net/socket.c:2423

BUG: memory leak
unreferenced object 0xffff888113cb6180 (size 64):
  comm "syz-executor683", pid 8736, jiffies 4294960571 (age 8.310s)
  hex dump (first 32 bytes):
    01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 01 00 00 00 01 02 00 04  ................
  backtrace:
    [<00000000815375e7>] kmalloc include/linux/slab.h:557 [inline]
    [<00000000815375e7>] mrp_attr_create net/802/mrp.c:276 [inline]
    [<00000000815375e7>] mrp_request_join+0x153/0x260 net/802/mrp.c:530
    [<0000000088eb4b90>] vlan_mvrp_request_join+0x96/0xa0 net/8021q/vlan_mvrp.c:40
    [<0000000060dfce19>] vlan_dev_open+0x1e7/0x330 net/8021q/vlan_dev.c:292
    [<00000000b87859c5>] __dev_open+0x175/0x260 net/core/dev.c:1510
    [<00000000ff948be9>] __dev_change_flags+0x2fd/0x390 net/core/dev.c:8460
    [<0000000062ee3833>] rtnl_configure_link+0x64/0x130 net/core/rtnetlink.c:3125
    [<00000000a19edecf>] __rtnl_newlink+0xa7e/0xdc0 net/core/rtnetlink.c:3462
    [<0000000085a4c7a0>] rtnl_newlink+0x49/0x70 net/core/rtnetlink.c:3502
    [<000000001f83ca0d>] rtnetlink_rcv_msg+0x1fc/0x520 net/core/rtnetlink.c:5564
    [<00000000a28aabae>] netlink_rcv_skb+0x87/0x1d0 net/netlink/af_netlink.c:2494
    [<00000000481e9b96>] netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline]
    [<00000000481e9b96>] netlink_unicast+0x392/0x4c0 net/netlink/af_netlink.c:1330
    [<000000002b9af0bd>] netlink_sendmsg+0x368/0x6a0 net/netlink/af_netlink.c:1919
    [<00000000a2c6e234>] sock_sendmsg_nosec net/socket.c:652 [inline]
    [<00000000a2c6e234>] sock_sendmsg+0x56/0x80 net/socket.c:672
    [<0000000002b4efeb>] ____sys_sendmsg+0x36c/0x390 net/socket.c:2336
    [<000000001973710c>] ___sys_sendmsg+0x8b/0xd0 net/socket.c:2390
    [<000000000441c39b>] __sys_sendmsg+0x88/0x100 net/socket.c:2423

write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory
write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory
write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory
write to /proc/sys/kernel/softlockup_all_cpu_backtrace failed: No such file or directory