2022/11/10 09:45:14 executed programs: 3
BUG: memory leak
unreferenced object 0xffff88810ddd9100 (size 240):
  comm "syz-executor.0", pid 3703, jiffies 4295048408 (age 13.370s)
  hex dump (first 32 bytes):
    e0 44 e9 14 81 88 ff ff e0 44 e9 14 81 88 ff ff  .D.......D......
    00 00 0f 11 81 88 ff ff 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff838528db>] napi_skb_cache_get+0x6b/0x90 net/core/skbuff.c:258
    [<ffffffff83852915>] __napi_build_skb+0x15/0x50 net/core/skbuff.c:387
    [<ffffffff83852ce9>] __napi_alloc_skb+0x129/0x260 net/core/skbuff.c:691
    [<ffffffff838d533c>] napi_alloc_skb include/linux/skbuff.h:3212 [inline]
    [<ffffffff838d533c>] napi_get_frags net/core/gro.c:688 [inline]
    [<ffffffff838d533c>] napi_get_frags+0x3c/0x80 net/core/gro.c:683
    [<ffffffff82a0cba9>] tun_napi_alloc_frags drivers/net/tun.c:1467 [inline]
    [<ffffffff82a0cba9>] tun_get_user+0x13e9/0x1e20 drivers/net/tun.c:1827
    [<ffffffff82a0e2dd>] tun_chr_write_iter+0x6d/0x110 drivers/net/tun.c:2026
    [<ffffffff815d8337>] call_write_iter include/linux/fs.h:2191 [inline]
    [<ffffffff815d8337>] do_iter_readv_writev+0x147/0x210 fs/read_write.c:735
    [<ffffffff815d991c>] do_iter_write+0xdc/0x300 fs/read_write.c:861
    [<ffffffff815d9c7d>] vfs_writev+0xdd/0x240 fs/read_write.c:934
    [<ffffffff815d9e86>] do_writev+0xa6/0x1c0 fs/read_write.c:977
    [<ffffffff84608245>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    [<ffffffff84608245>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
    [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd