executing program
executing program
BUG: memory leak
unreferenced object 0xffff8881199ba300 (size 224):
  comm "syz-executor264", pid 6446, jiffies 4294944475 (age 12.690s)
  hex dump (first 32 bytes):
    a0 9c da 28 81 88 ff ff a0 9c da 28 81 88 ff ff  ...(.......(....
    00 40 80 18 81 88 ff ff 00 00 00 00 00 00 00 00  .@..............
  backtrace:
    [<00000000ef56198d>] __build_skb+0x1f/0x100 net/core/skbuff.c:311
    [<0000000072083303>] __napi_alloc_skb+0xe5/0x140 net/core/skbuff.c:523
    [<0000000016470893>] napi_alloc_skb include/linux/skbuff.h:2865 [inline]
    [<0000000016470893>] napi_get_frags net/core/dev.c:6053 [inline]
    [<0000000016470893>] napi_get_frags+0x3a/0x70 net/core/dev.c:6048
    [<00000000f2a3ae49>] tun_napi_alloc_frags drivers/net/tun.c:1425 [inline]
    [<00000000f2a3ae49>] tun_get_user+0xa43/0x1660 drivers/net/tun.c:1789
    [<00000000d89f53c3>] tun_chr_write_iter+0x66/0xa0 drivers/net/tun.c:1986
    [<000000000b00ab5c>] call_write_iter include/linux/fs.h:1882 [inline]
    [<000000000b00ab5c>] new_sync_write+0x173/0x210 fs/read_write.c:503
    [<00000000d22202f1>] __kernel_write+0x140/0x1f0 fs/read_write.c:530
    [<00000000f32b6dc7>] write_pipe_buf+0x61/0x80 fs/splice.c:799
    [<000000005be50827>] splice_from_pipe_feed fs/splice.c:502 [inline]
    [<000000005be50827>] __splice_from_pipe+0x154/0x290 fs/splice.c:626
    [<00000000cdf76d87>] splice_from_pipe fs/splice.c:661 [inline]
    [<00000000cdf76d87>] default_file_splice_write fs/splice.c:811 [inline]
    [<00000000cdf76d87>] do_splice_from fs/splice.c:847 [inline]
    [<00000000cdf76d87>] do_splice+0x772/0x8d0 fs/splice.c:1144
    [<0000000092b98f6f>] __do_sys_splice fs/splice.c:1419 [inline]
    [<0000000092b98f6f>] __se_sys_splice fs/splice.c:1401 [inline]
    [<0000000092b98f6f>] __x64_sys_splice+0xaa/0x110 fs/splice.c:1401
    [<000000006cc1a1f6>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
    [<00000000bea4d076>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff88811c566f00 (size 224):
  comm "syz-executor264", pid 6494, jiffies 4294945008 (age 7.360s)
  hex dump (first 32 bytes):
    a0 14 bf 19 81 88 ff ff a0 14 bf 19 81 88 ff ff  ................
    00 40 80 18 81 88 ff ff 00 00 00 00 00 00 00 00  .@..............
  backtrace:
    [<00000000ef56198d>] __build_skb+0x1f/0x100 net/core/skbuff.c:311
    [<0000000072083303>] __napi_alloc_skb+0xe5/0x140 net/core/skbuff.c:523
    [<0000000016470893>] napi_alloc_skb include/linux/skbuff.h:2865 [inline]
    [<0000000016470893>] napi_get_frags net/core/dev.c:6053 [inline]
    [<0000000016470893>] napi_get_frags+0x3a/0x70 net/core/dev.c:6048
    [<00000000f2a3ae49>] tun_napi_alloc_frags drivers/net/tun.c:1425 [inline]
    [<00000000f2a3ae49>] tun_get_user+0xa43/0x1660 drivers/net/tun.c:1789
    [<00000000d89f53c3>] tun_chr_write_iter+0x66/0xa0 drivers/net/tun.c:1986
    [<000000000b00ab5c>] call_write_iter include/linux/fs.h:1882 [inline]
    [<000000000b00ab5c>] new_sync_write+0x173/0x210 fs/read_write.c:503
    [<00000000d22202f1>] __kernel_write+0x140/0x1f0 fs/read_write.c:530
    [<00000000f32b6dc7>] write_pipe_buf+0x61/0x80 fs/splice.c:799
    [<000000005be50827>] splice_from_pipe_feed fs/splice.c:502 [inline]
    [<000000005be50827>] __splice_from_pipe+0x154/0x290 fs/splice.c:626
    [<00000000cdf76d87>] splice_from_pipe fs/splice.c:661 [inline]
    [<00000000cdf76d87>] default_file_splice_write fs/splice.c:811 [inline]
    [<00000000cdf76d87>] do_splice_from fs/splice.c:847 [inline]
    [<00000000cdf76d87>] do_splice+0x772/0x8d0 fs/splice.c:1144
    [<0000000092b98f6f>] __do_sys_splice fs/splice.c:1419 [inline]
    [<0000000092b98f6f>] __se_sys_splice fs/splice.c:1401 [inline]
    [<0000000092b98f6f>] __x64_sys_splice+0xaa/0x110 fs/splice.c:1401
    [<000000006cc1a1f6>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
    [<00000000bea4d076>] entry_SYSCALL_64_after_hwframe+0x44/0xa9