executing program
BUG: memory leak
unreferenced object 0xffff8881019f5800 (size 232):
  comm "sshd", pid 6526, jiffies 4294950090 (age 19.520s)
  hex dump (first 32 bytes):
    e0 3c 35 06 81 88 ff ff e0 3c 35 06 81 88 ff ff  .<5......<5.....
    00 c0 06 17 81 88 ff ff 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff8370a51f>] __alloc_skb+0x20f/0x280 net/core/skbuff.c:414
    [<ffffffff83a547ca>] alloc_skb include/linux/skbuff.h:1116 [inline]
    [<ffffffff83a547ca>] __tcp_send_ack.part.0+0x3a/0x1e0 net/ipv4/tcp_output.c:3946
    [<ffffffff83a59722>] __tcp_send_ack net/ipv4/tcp_output.c:3978 [inline]
    [<ffffffff83a59722>] tcp_send_ack+0x32/0x40 net/ipv4/tcp_output.c:3978
    [<ffffffff83a3435c>] tcp_cleanup_rbuf+0x1cc/0x220 net/ipv4/tcp.c:1601
    [<ffffffff83a35269>] tcp_recvmsg_locked+0x409/0x1010 net/ipv4/tcp.c:2522
    [<ffffffff83a370b8>] tcp_recvmsg+0xa8/0x310 net/ipv4/tcp.c:2552
    [<ffffffff83a8f8a4>] inet_recvmsg+0x84/0x190 net/ipv4/af_inet.c:852
    [<ffffffff836fa46f>] sock_recvmsg_nosec net/socket.c:944 [inline]
    [<ffffffff836fa46f>] sock_recvmsg net/socket.c:962 [inline]
    [<ffffffff836fa46f>] sock_recvmsg net/socket.c:958 [inline]
    [<ffffffff836fa46f>] sock_read_iter+0x15f/0x1b0 net/socket.c:1035
    [<ffffffff8156ea41>] call_read_iter include/linux/fs.h:2157 [inline]
    [<ffffffff8156ea41>] new_sync_read+0x2b1/0x2f0 fs/read_write.c:404
    [<ffffffff815720ca>] vfs_read+0x1ba/0x2b0 fs/read_write.c:485
    [<ffffffff8157270b>] ksys_read+0x12b/0x160 fs/read_write.c:623
    [<ffffffff843fbcd5>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    [<ffffffff843fbcd5>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
    [<ffffffff84600068>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak
unreferenced object 0xffff8881110e8c00 (size 1024):
  comm "syz-executor654", pid 6529, jiffies 4294950807 (age 12.350s)
  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:
    [<ffffffff8370a3ef>] kmalloc_reserve net/core/skbuff.c:355 [inline]
    [<ffffffff8370a3ef>] __alloc_skb+0xdf/0x280 net/core/skbuff.c:426
    [<ffffffff8370a6dc>] __napi_alloc_skb+0x6c/0x170 net/core/skbuff.c:567
    [<ffffffff8372afbc>] napi_alloc_skb include/linux/skbuff.h:2934 [inline]
    [<ffffffff8372afbc>] napi_get_frags net/core/dev.c:6245 [inline]
    [<ffffffff8372afbc>] napi_get_frags+0x3c/0x80 net/core/dev.c:6240
    [<ffffffff828f14a6>] tun_napi_alloc_frags drivers/net/tun.c:1382 [inline]
    [<ffffffff828f14a6>] tun_get_user+0x1006/0x1b70 drivers/net/tun.c:1741
    [<ffffffff828f207d>] tun_chr_write_iter+0x6d/0x100 drivers/net/tun.c:1937
    [<ffffffff8156ec5a>] call_write_iter include/linux/fs.h:2163 [inline]
    [<ffffffff8156ec5a>] new_sync_write+0x1da/0x2b0 fs/read_write.c:507
    [<ffffffff81572534>] vfs_write+0x374/0x420 fs/read_write.c:594
    [<ffffffff8157281d>] ksys_write+0x9d/0x160 fs/read_write.c:647
    [<ffffffff843fbcd5>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    [<ffffffff843fbcd5>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
    [<ffffffff84600068>] entry_SYSCALL_64_after_hwframe+0x44/0xae