executing program
executing program
executing program
executing program
executing program
BUG: memory leak
unreferenced object 0xffff888120656e00 (size 224):
  comm "syz-executor779", pid 7038, jiffies 4294945350 (age 55.490s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 80 49 11 81 88 ff ff 00 00 00 00 00 00 00 00  ..I.............
  backtrace:
    [<00000000bb369550>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline]
    [<00000000bb369550>] slab_post_alloc_hook mm/slab.h:522 [inline]
    [<00000000bb369550>] slab_alloc mm/slab.c:3319 [inline]
    [<00000000bb369550>] kmem_cache_alloc+0x13f/0x2c0 mm/slab.c:3483
    [<00000000d4694550>] __build_skb+0x26/0x70 net/core/skbuff.c:310
    [<00000000d9a63ecc>] __napi_alloc_skb+0xf8/0x150 net/core/skbuff.c:523
    [<0000000009738d09>] napi_alloc_skb include/linux/skbuff.h:2813 [inline]
    [<0000000009738d09>] napi_get_frags net/core/dev.c:5740 [inline]
    [<0000000009738d09>] napi_get_frags+0x3f/0x70 net/core/dev.c:5735
    [<00000000ff0c0624>] tun_napi_alloc_frags drivers/net/tun.c:1473 [inline]
    [<00000000ff0c0624>] tun_get_user+0x636/0x1a10 drivers/net/tun.c:1834
    [<00000000ca8642e2>] tun_chr_write_iter+0x53/0x90 drivers/net/tun.c:2020
    [<000000003ef85a7b>] call_write_iter include/linux/fs.h:1870 [inline]
    [<000000003ef85a7b>] do_iter_readv_writev+0x210/0x2e0 fs/read_write.c:693
    [<00000000fbcee5a3>] do_iter_write fs/read_write.c:970 [inline]
    [<00000000fbcee5a3>] do_iter_write+0xb9/0x230 fs/read_write.c:951
    [<00000000b8f406dc>] vfs_writev+0xcb/0x130 fs/read_write.c:1015
    [<000000008da82e69>] do_writev+0x89/0x180 fs/read_write.c:1058
    [<000000004635998d>] __do_sys_writev fs/read_write.c:1131 [inline]
    [<000000004635998d>] __se_sys_writev fs/read_write.c:1128 [inline]
    [<000000004635998d>] __x64_sys_writev+0x20/0x30 fs/read_write.c:1128
    [<0000000043351b71>] do_syscall_64+0x76/0x1a0 arch/x86/entry/common.c:296
    [<00000000eb09d2fb>] entry_SYSCALL_64_after_hwframe+0x44/0xa9