executing program
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executing program
executing program
executing program
BUG: memory leak
unreferenced object 0xffff888119861300 (size 224):
  comm "softirq", pid 0, jiffies 4294946970 (age 28.190s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 80 83 2a 81 88 ff ff 00 00 00 00 00 00 00 00  ...*............
  backtrace:
    [<0000000039cc5ea2>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline]
    [<0000000039cc5ea2>] slab_post_alloc_hook mm/slab.h:439 [inline]
    [<0000000039cc5ea2>] slab_alloc mm/slab.c:3326 [inline]
    [<0000000039cc5ea2>] kmem_cache_alloc+0x134/0x270 mm/slab.c:3488
    [<0000000072484578>] __build_skb+0x26/0x70 net/core/skbuff.c:307
    [<00000000a8ff8f7e>] __napi_alloc_skb+0xf8/0x150 net/core/skbuff.c:520
    [<00000000452132c4>] napi_alloc_skb include/linux/skbuff.h:2789 [inline]
    [<00000000452132c4>] napi_get_frags net/core/dev.c:5717 [inline]
    [<00000000452132c4>] napi_get_frags+0x3f/0x70 net/core/dev.c:5712
    [<0000000031f0cbd5>] tun_napi_alloc_frags drivers/net/tun.c:1484 [inline]
    [<0000000031f0cbd5>] tun_get_user+0x636/0x1a20 drivers/net/tun.c:1842
    [<00000000c48d1f56>] tun_chr_write_iter+0x53/0x90 drivers/net/tun.c:2028
    [<0000000066ff6cf0>] call_write_iter include/linux/fs.h:1872 [inline]
    [<0000000066ff6cf0>] do_iter_readv_writev+0x210/0x2e0 fs/read_write.c:693
    [<00000000b4df127c>] do_iter_write fs/read_write.c:970 [inline]
    [<00000000b4df127c>] do_iter_write+0xb9/0x230 fs/read_write.c:951
    [<00000000fd496864>] vfs_writev+0xcb/0x130 fs/read_write.c:1015
    [<0000000098a6c696>] do_writev+0x89/0x180 fs/read_write.c:1058
    [<00000000af48f21f>] __do_sys_writev fs/read_write.c:1131 [inline]
    [<00000000af48f21f>] __se_sys_writev fs/read_write.c:1128 [inline]
    [<00000000af48f21f>] __x64_sys_writev+0x20/0x30 fs/read_write.c:1128
    [<0000000066367248>] do_syscall_64+0x76/0x1a0 arch/x86/entry/common.c:301
    [<00000000b4891991>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff888119861100 (size 224):
  comm "softirq", pid 0, jiffies 4294948012 (age 17.770s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 80 83 2a 81 88 ff ff 00 00 00 00 00 00 00 00  ...*............
  backtrace:
    [<0000000039cc5ea2>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline]
    [<0000000039cc5ea2>] slab_post_alloc_hook mm/slab.h:439 [inline]
    [<0000000039cc5ea2>] slab_alloc mm/slab.c:3326 [inline]
    [<0000000039cc5ea2>] kmem_cache_alloc+0x134/0x270 mm/slab.c:3488
    [<0000000072484578>] __build_skb+0x26/0x70 net/core/skbuff.c:307
    [<00000000a8ff8f7e>] __napi_alloc_skb+0xf8/0x150 net/core/skbuff.c:520
    [<00000000452132c4>] napi_alloc_skb include/linux/skbuff.h:2789 [inline]
    [<00000000452132c4>] napi_get_frags net/core/dev.c:5717 [inline]
    [<00000000452132c4>] napi_get_frags+0x3f/0x70 net/core/dev.c:5712
    [<0000000031f0cbd5>] tun_napi_alloc_frags drivers/net/tun.c:1484 [inline]
    [<0000000031f0cbd5>] tun_get_user+0x636/0x1a20 drivers/net/tun.c:1842
    [<00000000c48d1f56>] tun_chr_write_iter+0x53/0x90 drivers/net/tun.c:2028
    [<0000000066ff6cf0>] call_write_iter include/linux/fs.h:1872 [inline]
    [<0000000066ff6cf0>] do_iter_readv_writev+0x210/0x2e0 fs/read_write.c:693
    [<00000000b4df127c>] do_iter_write fs/read_write.c:970 [inline]
    [<00000000b4df127c>] do_iter_write+0xb9/0x230 fs/read_write.c:951
    [<00000000fd496864>] vfs_writev+0xcb/0x130 fs/read_write.c:1015
    [<0000000098a6c696>] do_writev+0x89/0x180 fs/read_write.c:1058
    [<00000000af48f21f>] __do_sys_writev fs/read_write.c:1131 [inline]
    [<00000000af48f21f>] __se_sys_writev fs/read_write.c:1128 [inline]
    [<00000000af48f21f>] __x64_sys_writev+0x20/0x30 fs/read_write.c:1128
    [<0000000066367248>] do_syscall_64+0x76/0x1a0 arch/x86/entry/common.c:301
    [<00000000b4891991>] entry_SYSCALL_64_after_hwframe+0x44/0xa9