BUG: memory leak unreferenced object 0xffff888058216780 (size 96): comm "softirq", pid 0, jiffies 4296973159 (age 21.999s) hex dump (first 32 bytes): 01 00 00 00 00 01 02 ff 04 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<000000009d7d36ef>] __skb_ext_alloc+0x19/0x80 net/core/skbuff.c:6224 [<000000005922c0a3>] skb_ext_add+0x504/0x670 net/core/skbuff.c:6319 [<000000000d7b1bb2>] skb_set_kcov_handle include/linux/skbuff.h:4622 [inline] [<000000000d7b1bb2>] skb_set_kcov_handle include/linux/skbuff.h:4612 [inline] [<000000000d7b1bb2>] __alloc_skb+0x3c1/0x620 net/core/skbuff.c:253 [<000000003684c0fa>] skb_copy+0x137/0x2f0 net/core/skbuff.c:1522 [<000000001c1d3707>] mac80211_hwsim_tx_frame_no_nl.isra.0+0xb1d/0x13c0 drivers/net/wireless/mac80211_hwsim.c:1495 [<0000000053f0b24a>] mac80211_hwsim_tx_frame+0x152/0x1e0 drivers/net/wireless/mac80211_hwsim.c:1712 [<0000000009e6d4fc>] mac80211_hwsim_beacon_tx+0x494/0x8f0 drivers/net/wireless/mac80211_hwsim.c:1766 [<0000000066fc103c>] __iterate_interfaces+0x1f0/0x530 net/mac80211/util.c:792 [<00000000c94a852f>] ieee80211_iterate_active_interfaces_atomic+0x72/0x180 net/mac80211/util.c:828 [<0000000023186127>] mac80211_hwsim_beacon+0xcd/0x1c0 drivers/net/wireless/mac80211_hwsim.c:1789 [<00000000d585d92d>] __run_hrtimer kernel/time/hrtimer.c:1583 [inline] [<00000000d585d92d>] __hrtimer_run_queues+0x5e8/0xb50 kernel/time/hrtimer.c:1647 [<000000007c448f61>] hrtimer_run_softirq+0x148/0x310 kernel/time/hrtimer.c:1664 [<000000003a68908f>] __do_softirq+0x1b8/0x867 kernel/softirq.c:298 [<00000000ac6bde05>] asm_call_irq_on_stack+0x12/0x20 [<00000000d0e37ae7>] __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline] [<00000000d0e37ae7>] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline] [<00000000d0e37ae7>] do_softirq_own_stack+0x80/0xa0 arch/x86/kernel/irq_64.c:77 [<00000000fddabe03>] invoke_softirq kernel/softirq.c:393 [inline] [<00000000fddabe03>] __irq_exit_rcu kernel/softirq.c:423 [inline] [<00000000fddabe03>] irq_exit_rcu+0x110/0x1a0 kernel/softirq.c:435 BUG: leak checking failed