2020/12/23 23:43:03 executed programs: 23
BUG: memory leak
unreferenced object 0xffff888125f8b800 (size 2048):
  comm "softirq", pid 0, jiffies 4294962593 (age 17.050s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    06 00 07 40 00 00 00 00 00 00 00 00 00 00 00 00  ...@............
  backtrace:
    [<0000000037ededb8>] kmalloc include/linux/slab.h:557 [inline]
    [<0000000037ededb8>] sk_prot_alloc+0xdf/0x1c0 net/core/sock.c:1685
    [<0000000071e55c39>] sk_alloc+0x30/0x3f0 net/core/sock.c:1739
    [<0000000057f7441b>] nr_make_new net/netrom/af_netrom.c:476 [inline]
    [<0000000057f7441b>] nr_rx_frame+0x5c7/0xcb0 net/netrom/af_netrom.c:959
    [<0000000028068759>] nr_loopback_timer+0x4a/0xe0 net/netrom/nr_loopback.c:59
    [<00000000a235f579>] call_timer_fn+0x38/0x200 kernel/time/timer.c:1417
    [<0000000042e092d6>] expire_timers kernel/time/timer.c:1462 [inline]
    [<0000000042e092d6>] __run_timers.part.0+0x319/0x400 kernel/time/timer.c:1731
    [<00000000cbc18b08>] __run_timers kernel/time/timer.c:1712 [inline]
    [<00000000cbc18b08>] run_timer_softirq+0x3d/0x80 kernel/time/timer.c:1744
    [<00000000f4c7e8a4>] __do_softirq+0xd1/0x2c9 kernel/softirq.c:343
    [<000000008c6ba486>] asm_call_irq_on_stack+0xf/0x20
    [<00000000e94d77f0>] __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline]
    [<00000000e94d77f0>] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline]
    [<00000000e94d77f0>] do_softirq_own_stack+0x32/0x40 arch/x86/kernel/irq_64.c:77
    [<00000000a0613268>] invoke_softirq kernel/softirq.c:226 [inline]
    [<00000000a0613268>] __irq_exit_rcu kernel/softirq.c:420 [inline]
    [<00000000a0613268>] irq_exit_rcu+0x93/0xc0 kernel/softirq.c:432
    [<000000008a9d205f>] sysvec_apic_timer_interrupt+0x36/0x80 arch/x86/kernel/apic/apic.c:1096
    [<000000000497b00e>] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:628
    [<0000000007d676b2>] native_safe_halt arch/x86/include/asm/irqflags.h:60 [inline]
    [<0000000007d676b2>] arch_safe_halt arch/x86/include/asm/irqflags.h:103 [inline]
    [<0000000007d676b2>] acpi_safe_halt drivers/acpi/processor_idle.c:110 [inline]
    [<0000000007d676b2>] acpi_idle_do_entry+0xc3/0xd0 drivers/acpi/processor_idle.c:516
    [<0000000028053586>] acpi_idle_enter+0x128/0x1f0 drivers/acpi/processor_idle.c:647
    [<00000000b2414476>] cpuidle_enter_state+0xc9/0x650 drivers/cpuidle/cpuidle.c:237