[  OK  ] Reached target Graphical Interface.
         Starting Update UTMP about System Runlevel Changes...
[  OK  ] Started Update UTMP about System Runlevel Changes.
         Starting Load/Save RF Kill Switch Status...
[  OK  ] Started Load/Save RF Kill Switch Status.

Debian GNU/Linux 9 syzkaller ttyS0

Warning: Permanently added '10.128.0.116' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   50.520983][ T8490] syz-executor088 uses obsolete (PF_INET,SOCK_PACKET)
[   50.542079][ T8490] device syzkaller1 entered promiscuous mode
executing program
[   55.783059][ T8535] device syzkaller1 entered promiscuous mode
executing program
[   60.987599][ T8581] device syzkaller1 entered promiscuous mode
executing program
[   66.196257][ T8625] device syzkaller1 entered promiscuous mode
[   67.294314][ T8489] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
BUG: memory leak
unreferenced object 0xffff88810f8a5700 (size 224):
  comm "syz-executor088", pid 8581, jiffies 4294943365 (age 12.400s)
  hex dump (first 32 bytes):
    a0 0c 49 13 81 88 ff ff a0 0c 49 13 81 88 ff ff  ..I.......I.....
    00 c0 8f 0e 81 88 ff ff 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<00000000bec1c64e>] __build_skb+0x1f/0x100
    [<00000000807b13dc>] __napi_alloc_skb+0xfe/0x160
    [<0000000016560a56>] napi_get_frags+0x3c/0x80
    [<0000000088712aac>] tun_get_user+0xcfd/0x1b50
    [<0000000024681478>] tun_chr_write_iter+0x84/0xe0
    [<00000000e9290816>] new_sync_write+0x1d7/0x2b0
    [<0000000008abfd69>] vfs_write+0x34c/0x400
    [<000000005810ff10>] ksys_write+0x9d/0x160
    [<0000000037762a3b>] do_syscall_64+0x2d/0x70
    [<00000000ab87ba20>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff88810dcbc700 (size 224):
  comm "syz-executor088", pid 8625, jiffies 4294943886 (age 7.190s)
  hex dump (first 32 bytes):
    a0 2c 85 0e 81 88 ff ff a0 2c 85 0e 81 88 ff ff  .,.......,......
    00 00 7c 13 81 88 ff ff 00 00 00 00 00 00 00 00  ..|.............
  backtrace:
    [<00000000bec1c64e>] __build_skb+0x1f/0x100
    [<00000000807b13dc>] __napi_alloc_skb+0xfe/0x160
    [<0000000016560a56>] napi_get_frags+0x3c/0x80
    [<0000000088712aac>] tun_get_user+0xcfd/0x1b50
    [<0000000024681478>] tun_chr_write_iter+0x84/0xe0
    [<00000000e9290816>] new_sync_write+0x1d7/0x2b0
    [<0000000008abfd69>] vfs_write+0x34c/0x400
    [<000000005810ff10>] ksys_write+0x9d/0x160
    [<0000000037762a3b>] do_syscall_64+0x2d/0x70
    [<00000000ab87ba20>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

[   73.329708][ T8489] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)