2020/09/08 17:17:58 executed programs: 3
2020/09/08 17:18:04 executed programs: 5
2020/09/08 17:18:10 executed programs: 7
BUG: memory leak
unreferenced object 0xffff8881186a5900 (size 224):
  comm "syz-executor.0", pid 6765, jiffies 4294995584 (age 13.880s)
  hex dump (first 32 bytes):
    a0 bc 0c 13 81 88 ff ff a0 bc 0c 13 81 88 ff ff  ................
    00 40 4f 12 81 88 ff ff 00 00 00 00 00 00 00 00  .@O.............
  backtrace:
    [<0000000081d840e4>] __build_skb+0x1f/0x100 net/core/skbuff.c:311
    [<000000006840a203>] __napi_alloc_skb+0xe5/0x140 net/core/skbuff.c:523
    [<0000000032003575>] napi_alloc_skb include/linux/skbuff.h:2865 [inline]
    [<0000000032003575>] napi_get_frags net/core/dev.c:6053 [inline]
    [<0000000032003575>] napi_get_frags+0x3a/0x70 net/core/dev.c:6048
    [<0000000076e18b70>] tun_napi_alloc_frags drivers/net/tun.c:1425 [inline]
    [<0000000076e18b70>] tun_get_user+0xa43/0x1660 drivers/net/tun.c:1789
    [<000000005dc9ab9d>] tun_chr_write_iter+0x66/0xa0 drivers/net/tun.c:1986
    [<00000000c4b989f1>] call_write_iter include/linux/fs.h:1882 [inline]
    [<00000000c4b989f1>] new_sync_write+0x173/0x210 fs/read_write.c:503
    [<00000000e7415139>] vfs_write+0x21d/0x280 fs/read_write.c:578
    [<000000002af4b2f1>] ksys_write+0x72/0x120 fs/read_write.c:631
    [<0000000014e3e750>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
    [<000000006bfa2497>] entry_SYSCALL_64_after_hwframe+0x44/0xa9