BUG: memory leak
unreferenced object 0xffff8881053afb00 (size 240):
  comm "syz-executor329", pid 5641, jiffies 4294987011 (age 13.100s)
  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 24 be 00 81 88 ff ff  .........$......
  backtrace:
    [<ffffffff83dcb4ed>] __alloc_skb+0x1fd/0x230 net/core/skbuff.c:644
    [<ffffffff83dbe301>] alloc_skb include/linux/skbuff.h:1288 [inline]
    [<ffffffff83dbe301>] sock_wmalloc+0x61/0x90 net/core/sock.c:2578
    [<ffffffff82f7623f>] pppoe_sendmsg+0xff/0x2c0 drivers/net/ppp/pppoe.c:867
    [<ffffffff83db57f8>] sock_sendmsg_nosec net/socket.c:724 [inline]
    [<ffffffff83db57f8>] sock_sendmsg+0x58/0xb0 net/socket.c:747
    [<ffffffff83db5b98>] ____sys_sendmsg+0x178/0x430 net/socket.c:2503
    [<ffffffff83dba3a8>] ___sys_sendmsg+0xa8/0x110 net/socket.c:2557
    [<ffffffff83dba729>] __sys_sendmmsg+0x109/0x330 net/socket.c:2643
    [<ffffffff83dba978>] __do_sys_sendmmsg net/socket.c:2672 [inline]
    [<ffffffff83dba978>] __se_sys_sendmmsg net/socket.c:2669 [inline]
    [<ffffffff83dba978>] __x64_sys_sendmmsg+0x28/0x30 net/socket.c:2669
    [<ffffffff84a137b9>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    [<ffffffff84a137b9>] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
    [<ffffffff84c0008b>] entry_SYSCALL_64_after_hwframe+0x63/0xcd