2020/09/01 22:03:55 executed programs: 9
2020/09/01 22:04:01 executed programs: 11
2020/09/01 22:04:06 executed programs: 13
2020/09/01 22:04:11 executed programs: 15
BUG: memory leak
unreferenced object 0xffff8881138e7900 (size 224):
  comm "syz-executor.0", pid 6850, jiffies 4294997125 (age 13.030s)
  hex dump (first 32 bytes):
    a0 f4 ea 13 81 88 ff ff a0 f4 ea 13 81 88 ff ff  ................
    00 40 0f 13 81 88 ff ff 00 00 00 00 00 00 00 00  .@..............
  backtrace:
    [<0000000078c9ee6f>] __build_skb+0x1f/0x100 net/core/skbuff.c:311
    [<000000002ce2085c>] __napi_alloc_skb+0xe5/0x140 net/core/skbuff.c:523
    [<000000007832c029>] napi_alloc_skb include/linux/skbuff.h:2856 [inline]
    [<000000007832c029>] napi_get_frags net/core/dev.c:6053 [inline]
    [<000000007832c029>] napi_get_frags+0x3a/0x70 net/core/dev.c:6048
    [<0000000055dab830>] tun_napi_alloc_frags drivers/net/tun.c:1425 [inline]
    [<0000000055dab830>] tun_get_user+0xa43/0x1660 drivers/net/tun.c:1789
    [<0000000050eefb48>] tun_chr_write_iter+0x66/0xa0 drivers/net/tun.c:1986
    [<0000000094684a0e>] call_write_iter include/linux/fs.h:1882 [inline]
    [<0000000094684a0e>] do_iter_readv_writev+0x207/0x2d0 fs/read_write.c:713
    [<00000000d8ab9cc9>] do_iter_write+0xac/0x230 fs/read_write.c:1018
    [<00000000de1c47b8>] vfs_writev+0xc1/0x120 fs/read_write.c:1091
    [<0000000073c093d2>] do_writev+0x83/0x170 fs/read_write.c:1134
    [<0000000072b81f99>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
    [<000000006b4868bf>] entry_SYSCALL_64_after_hwframe+0x44/0xa9