BUG: memory leak
unreferenced object 0xffff888068e3e300 (size 96):
  comm "softirq", pid 0, jiffies 4297209614 (age 23.183s)
  hex dump (first 32 bytes):
    01 00 00 00 00 01 02 ff 03 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<00000000b7455d50>] __skb_ext_alloc+0x19/0x90 net/core/skbuff.c:6225
    [<00000000d97a5f20>] skb_ext_add+0x508/0x670 net/core/skbuff.c:6320
    [<0000000079b1b43a>] skb_set_kcov_handle include/linux/skbuff.h:4632 [inline]
    [<0000000079b1b43a>] skb_set_kcov_handle include/linux/skbuff.h:4622 [inline]
    [<0000000079b1b43a>] __alloc_skb+0x3c1/0x620 net/core/skbuff.c:253
    [<00000000a5548f0b>] skb_copy+0x137/0x2f0 net/core/skbuff.c:1522
    [<00000000c1756342>] mac80211_hwsim_tx_frame_no_nl.isra.0+0xb1d/0x13d0 drivers/net/wireless/mac80211_hwsim.c:1499
    [<000000003b5802bd>] mac80211_hwsim_tx_frame+0x152/0x1e0 drivers/net/wireless/mac80211_hwsim.c:1716
    [<000000002ccf66bd>] mac80211_hwsim_beacon_tx+0x494/0x8f0 drivers/net/wireless/mac80211_hwsim.c:1770
    [<000000003f2c6475>] __iterate_interfaces+0x1f0/0x530 net/mac80211/util.c:792
    [<00000000bd0f0e90>] ieee80211_iterate_active_interfaces_atomic+0x72/0x180 net/mac80211/util.c:828
    [<00000000c7544245>] mac80211_hwsim_beacon+0xd1/0x1d0 drivers/net/wireless/mac80211_hwsim.c:1793
    [<0000000060c3446d>] __run_hrtimer kernel/time/hrtimer.c:1583 [inline]
    [<0000000060c3446d>] __hrtimer_run_queues+0x5e8/0xb50 kernel/time/hrtimer.c:1647
    [<00000000250f9341>] hrtimer_run_softirq+0x148/0x310 kernel/time/hrtimer.c:1664
    [<00000000ba484c05>] __do_softirq+0x1b8/0x86b kernel/softirq.c:298
    [<000000009841252a>] asm_call_irq_on_stack+0x12/0x20
    [<00000000cc32d1c5>] __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline]
    [<00000000cc32d1c5>] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline]
    [<00000000cc32d1c5>] do_softirq_own_stack+0x80/0xa0 arch/x86/kernel/irq_64.c:77
    [<000000005090cf95>] invoke_softirq kernel/softirq.c:393 [inline]
    [<000000005090cf95>] __irq_exit_rcu kernel/softirq.c:423 [inline]
    [<000000005090cf95>] irq_exit_rcu+0x114/0x1b0 kernel/softirq.c:435

BUG: leak checking failed