Hello, syzbot found the following issue on: HEAD commit: 3aaf0a27 Merge tag 'clang-format-for-linux-v5.11-rc7' of g.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=10f79330d00000 kernel config: https://syzkaller.appspot.com/x/.config?x=b7edd79f26f7c0c3 dashboard link: https://syzkaller.appspot.com/bug?extid=e832ab33619901afc64a syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13e46a40d00000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+e832ab33619901afc64a@xxxxxxxxxxxxxxxxxxxxxxxxx BUG: memory leak unreferenced object 0xffff88811682b500 (size 232): comm "softirq", pid 0, jiffies 4295119192 (age 15.070s) hex dump (first 32 bytes): 10 c5 79 16 81 88 ff ff 10 c5 79 16 81 88 ff ff ..y.......y..... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<0000000092ce1185>] __alloc_skb+0x6d/0x280 net/core/skbuff.c:198 [<0000000027006abe>] __netdev_alloc_skb+0x6a/0x210 net/core/skbuff.c:446 [<00000000bbb79fe8>] netdev_alloc_skb include/linux/skbuff.h:2832 [inline] [<00000000bbb79fe8>] dev_alloc_skb include/linux/skbuff.h:2845 [inline] [<00000000bbb79fe8>] __ieee80211_beacon_get+0x662/0x7a0 net/mac80211/tx.c:4814 [<00000000d5da7a17>] ieee80211_beacon_get_tim+0x47/0x1c0 net/mac80211/tx.c:4928 [<0000000042c1663d>] ieee80211_beacon_get include/net/mac80211.h:4918 [inline] [<0000000042c1663d>] mac80211_hwsim_beacon_tx+0xa1/0x2c0 drivers/net/wireless/mac80211_hwsim.c:1729 [<00000000681dd69b>] __iterate_interfaces+0x125/0x260 net/mac80211/util.c:793 [<00000000025fd347>] ieee80211_iterate_active_interfaces_atomic+0x2e/0x40 net/mac80211/util.c:829 [<00000000c135ff4a>] mac80211_hwsim_beacon+0x52/0xb0 drivers/net/wireless/mac80211_hwsim.c:1782 [<0000000018e3b983>] __run_hrtimer kernel/time/hrtimer.c:1519 [inline] [<0000000018e3b983>] __hrtimer_run_queues+0x1ba/0x470 kernel/time/hrtimer.c:1583 [<00000000ac9fbd2f>] hrtimer_run_softirq+0x7e/0x100 kernel/time/hrtimer.c:1600 [<000000003b2a8015>] __do_softirq+0xbf/0x2ab kernel/softirq.c:343 [<00000000cfba3969>] asm_call_irq_on_stack+0xf/0x20 [<00000000a2e1da95>] __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline] [<00000000a2e1da95>] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline] [<00000000a2e1da95>] do_softirq_own_stack+0x32/0x40 arch/x86/kernel/irq_64.c:77 [<0000000075748e36>] invoke_softirq kernel/softirq.c:226 [inline] [<0000000075748e36>] __irq_exit_rcu kernel/softirq.c:420 [inline] [<0000000075748e36>] irq_exit_rcu+0x93/0xc0 kernel/softirq.c:432 [<000000006645e04e>] sysvec_apic_timer_interrupt+0x36/0x80 arch/x86/kernel/apic/apic.c:1096 [<00000000cffb1ca1>] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:629 BUG: memory leak unreferenced object 0xffff88811682db00 (size 232): comm "softirq", pid 0, jiffies 4295119192 (age 15.070s) hex dump (first 32 bytes): 10 c5 6b 16 81 88 ff ff 10 c5 6b 16 81 88 ff ff ..k.......k..... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<0000000092ce1185>] __alloc_skb+0x6d/0x280 net/core/skbuff.c:198 [<0000000027006abe>] __netdev_alloc_skb+0x6a/0x210 net/core/skbuff.c:446 [<00000000bbb79fe8>] netdev_alloc_skb include/linux/skbuff.h:2832 [inline] [<00000000bbb79fe8>] dev_alloc_skb include/linux/skbuff.h:2845 [inline] [<00000000bbb79fe8>] __ieee80211_beacon_get+0x662/0x7a0 net/mac80211/tx.c:4814 [<00000000d5da7a17>] ieee80211_beacon_get_tim+0x47/0x1c0 net/mac80211/tx.c:4928 [<0000000042c1663d>] ieee80211_beacon_get include/net/mac80211.h:4918 [inline] [<0000000042c1663d>] mac80211_hwsim_beacon_tx+0xa1/0x2c0 drivers/net/wireless/mac80211_hwsim.c:1729 [<00000000681dd69b>] __iterate_interfaces+0x125/0x260 net/mac80211/util.c:793 [<00000000025fd347>] ieee80211_iterate_active_interfaces_atomic+0x2e/0x40 net/mac80211/util.c:829 [<00000000c135ff4a>] mac80211_hwsim_beacon+0x52/0xb0 drivers/net/wireless/mac80211_hwsim.c:1782 [<0000000018e3b983>] __run_hrtimer kernel/time/hrtimer.c:1519 [inline] [<0000000018e3b983>] __hrtimer_run_queues+0x1ba/0x470 kernel/time/hrtimer.c:1583 [<00000000ac9fbd2f>] hrtimer_run_softirq+0x7e/0x100 kernel/time/hrtimer.c:1600 [<000000003b2a8015>] __do_softirq+0xbf/0x2ab kernel/softirq.c:343 [<00000000cfba3969>] asm_call_irq_on_stack+0xf/0x20 [<00000000a2e1da95>] __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline] [<00000000a2e1da95>] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline] [<00000000a2e1da95>] do_softirq_own_stack+0x32/0x40 arch/x86/kernel/irq_64.c:77 [<0000000075748e36>] invoke_softirq kernel/softirq.c:226 [inline] [<0000000075748e36>] __irq_exit_rcu kernel/softirq.c:420 [inline] [<0000000075748e36>] irq_exit_rcu+0x93/0xc0 kernel/softirq.c:432 [<000000006645e04e>] sysvec_apic_timer_interrupt+0x36/0x80 arch/x86/kernel/apic/apic.c:1096 [<00000000cffb1ca1>] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:629 BUG: memory leak unreferenced object 0xffff888116604400 (size 512): comm "softirq", pid 0, jiffies 4295119192 (age 15.070s) 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: [<00000000d1a2675d>] __kmalloc_reserve net/core/skbuff.c:142 [inline] [<00000000d1a2675d>] __alloc_skb+0xab/0x280 net/core/skbuff.c:210 [<0000000027006abe>] __netdev_alloc_skb+0x6a/0x210 net/core/skbuff.c:446 [<00000000bbb79fe8>] netdev_alloc_skb include/linux/skbuff.h:2832 [inline] [<00000000bbb79fe8>] dev_alloc_skb include/linux/skbuff.h:2845 [inline] [<00000000bbb79fe8>] __ieee80211_beacon_get+0x662/0x7a0 net/mac80211/tx.c:4814 [<00000000d5da7a17>] ieee80211_beacon_get_tim+0x47/0x1c0 net/mac80211/tx.c:4928 [<0000000042c1663d>] ieee80211_beacon_get include/net/mac80211.h:4918 [inline] [<0000000042c1663d>] mac80211_hwsim_beacon_tx+0xa1/0x2c0 drivers/net/wireless/mac80211_hwsim.c:1729 [<00000000681dd69b>] __iterate_interfaces+0x125/0x260 net/mac80211/util.c:793 [<00000000025fd347>] ieee80211_iterate_active_interfaces_atomic+0x2e/0x40 net/mac80211/util.c:829 [<00000000c135ff4a>] mac80211_hwsim_beacon+0x52/0xb0 drivers/net/wireless/mac80211_hwsim.c:1782 [<0000000018e3b983>] __run_hrtimer kernel/time/hrtimer.c:1519 [inline] [<0000000018e3b983>] __hrtimer_run_queues+0x1ba/0x470 kernel/time/hrtimer.c:1583 [<00000000ac9fbd2f>] hrtimer_run_softirq+0x7e/0x100 kernel/time/hrtimer.c:1600 [<000000003b2a8015>] __do_softirq+0xbf/0x2ab kernel/softirq.c:343 [<00000000cfba3969>] asm_call_irq_on_stack+0xf/0x20 [<00000000a2e1da95>] __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline] [<00000000a2e1da95>] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline] [<00000000a2e1da95>] do_softirq_own_stack+0x32/0x40 arch/x86/kernel/irq_64.c:77 [<0000000075748e36>] invoke_softirq kernel/softirq.c:226 [inline] [<0000000075748e36>] __irq_exit_rcu kernel/softirq.c:420 [inline] [<0000000075748e36>] irq_exit_rcu+0x93/0xc0 kernel/softirq.c:432 [<000000006645e04e>] sysvec_apic_timer_interrupt+0x36/0x80 arch/x86/kernel/apic/apic.c:1096 [<00000000cffb1ca1>] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:629 --- This report is generated by a bot. 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