BUG: memory leak
unreferenced object 0xffff888106572300 (size 256):
  comm "syz-executor.6", pid 8176, jiffies 4294962379 (age 9.410s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<00000000410824ac>] kmalloc include/linux/slab.h:555 [inline]
    [<00000000410824ac>] kmalloc_array include/linux/slab.h:596 [inline]
    [<00000000410824ac>] kcalloc include/linux/slab.h:608 [inline]
    [<00000000410824ac>] tcf_exts_init include/net/pkt_cls.h:223 [inline]
    [<00000000410824ac>] tcindex_alloc_perfect_hash net/sched/cls_tcindex.c:312 [inline]
    [<00000000410824ac>] tcindex_alloc_perfect_hash+0x88/0x110 net/sched/cls_tcindex.c:302
    [<00000000ba0de41e>] tcindex_set_parms+0x8b0/0x9d0 net/sched/cls_tcindex.c:433
    [<00000000960f4cbb>] tcindex_change+0xcf/0x110 net/sched/cls_tcindex.c:546
    [<000000001bc98625>] tc_new_tfilter+0x8b0/0xe30 net/sched/cls_api.c:2126
    [<00000000fdd13968>] rtnetlink_rcv_msg+0x364/0x460 net/core/rtnetlink.c:5452
    [<00000000a64f0f7a>] netlink_rcv_skb+0x5b/0x180 net/netlink/af_netlink.c:2469
    [<000000007fe1d065>] netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline]
    [<000000007fe1d065>] netlink_unicast+0x2b6/0x3c0 net/netlink/af_netlink.c:1329
    [<00000000ba0c12ea>] netlink_sendmsg+0x2ba/0x570 net/netlink/af_netlink.c:1918
    [<00000000566be4a9>] sock_sendmsg_nosec net/socket.c:652 [inline]
    [<00000000566be4a9>] sock_sendmsg+0x4c/0x60 net/socket.c:672
    [<00000000e878bbcb>] ____sys_sendmsg+0x2c4/0x2f0 net/socket.c:2352
    [<00000000a80677ee>] ___sys_sendmsg+0x81/0xc0 net/socket.c:2406
    [<000000003c203653>] __sys_sendmsg+0x77/0xe0 net/socket.c:2439
    [<000000007def6a25>] do_syscall_64+0x4c/0xe0 arch/x86/entry/common.c:384
    [<0000000011b5fdb6>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff888106572500 (size 256):
  comm "syz-executor.6", pid 8176, jiffies 4294962379 (age 9.410s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<00000000410824ac>] kmalloc include/linux/slab.h:555 [inline]
    [<00000000410824ac>] kmalloc_array include/linux/slab.h:596 [inline]
    [<00000000410824ac>] kcalloc include/linux/slab.h:608 [inline]
    [<00000000410824ac>] tcf_exts_init include/net/pkt_cls.h:223 [inline]
    [<00000000410824ac>] tcindex_alloc_perfect_hash net/sched/cls_tcindex.c:312 [inline]
    [<00000000410824ac>] tcindex_alloc_perfect_hash+0x88/0x110 net/sched/cls_tcindex.c:302
    [<00000000ba0de41e>] tcindex_set_parms+0x8b0/0x9d0 net/sched/cls_tcindex.c:433
    [<00000000960f4cbb>] tcindex_change+0xcf/0x110 net/sched/cls_tcindex.c:546
    [<000000001bc98625>] tc_new_tfilter+0x8b0/0xe30 net/sched/cls_api.c:2126
    [<00000000fdd13968>] rtnetlink_rcv_msg+0x364/0x460 net/core/rtnetlink.c:5452
    [<00000000a64f0f7a>] netlink_rcv_skb+0x5b/0x180 net/netlink/af_netlink.c:2469
    [<000000007fe1d065>] netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline]
    [<000000007fe1d065>] netlink_unicast+0x2b6/0x3c0 net/netlink/af_netlink.c:1329
    [<00000000ba0c12ea>] netlink_sendmsg+0x2ba/0x570 net/netlink/af_netlink.c:1918
    [<00000000566be4a9>] sock_sendmsg_nosec net/socket.c:652 [inline]
    [<00000000566be4a9>] sock_sendmsg+0x4c/0x60 net/socket.c:672
    [<00000000e878bbcb>] ____sys_sendmsg+0x2c4/0x2f0 net/socket.c:2352
    [<00000000a80677ee>] ___sys_sendmsg+0x81/0xc0 net/socket.c:2406
    [<000000003c203653>] __sys_sendmsg+0x77/0xe0 net/socket.c:2439
    [<000000007def6a25>] do_syscall_64+0x4c/0xe0 arch/x86/entry/common.c:384
    [<0000000011b5fdb6>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff888106572700 (size 256):
  comm "syz-executor.6", pid 8176, jiffies 4294962379 (age 9.410s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<00000000410824ac>] kmalloc include/linux/slab.h:555 [inline]
    [<00000000410824ac>] kmalloc_array include/linux/slab.h:596 [inline]
    [<00000000410824ac>] kcalloc include/linux/slab.h:608 [inline]
    [<00000000410824ac>] tcf_exts_init include/net/pkt_cls.h:223 [inline]
    [<00000000410824ac>] tcindex_alloc_perfect_hash net/sched/cls_tcindex.c:312 [inline]
    [<00000000410824ac>] tcindex_alloc_perfect_hash+0x88/0x110 net/sched/cls_tcindex.c:302
    [<00000000ba0de41e>] tcindex_set_parms+0x8b0/0x9d0 net/sched/cls_tcindex.c:433
    [<00000000960f4cbb>] tcindex_change+0xcf/0x110 net/sched/cls_tcindex.c:546
    [<000000001bc98625>] tc_new_tfilter+0x8b0/0xe30 net/sched/cls_api.c:2126
    [<00000000fdd13968>] rtnetlink_rcv_msg+0x364/0x460 net/core/rtnetlink.c:5452
    [<00000000a64f0f7a>] netlink_rcv_skb+0x5b/0x180 net/netlink/af_netlink.c:2469
    [<000000007fe1d065>] netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline]
    [<000000007fe1d065>] netlink_unicast+0x2b6/0x3c0 net/netlink/af_netlink.c:1329
    [<00000000ba0c12ea>] netlink_sendmsg+0x2ba/0x570 net/netlink/af_netlink.c:1918
    [<00000000566be4a9>] sock_sendmsg_nosec net/socket.c:652 [inline]
    [<00000000566be4a9>] sock_sendmsg+0x4c/0x60 net/socket.c:672
    [<00000000e878bbcb>] ____sys_sendmsg+0x2c4/0x2f0 net/socket.c:2352
    [<00000000a80677ee>] ___sys_sendmsg+0x81/0xc0 net/socket.c:2406
    [<000000003c203653>] __sys_sendmsg+0x77/0xe0 net/socket.c:2439
    [<000000007def6a25>] do_syscall_64+0x4c/0xe0 arch/x86/entry/common.c:384
    [<0000000011b5fdb6>] entry_SYSCALL_64_after_hwframe+0x44/0xa9