Warning: Permanently added '10.128.15.193' (ECDSA) to the list of known hosts.
syzkaller login: [   45.207500][   T25] audit: type=1400 audit(1599143382.290:8): avc:  denied  { execmem } for  pid=6507 comm="syz-executor561" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1
executing program
executing program
executing program
[   64.571246][ T6507] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
[   70.874428][ T6507] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
BUG: memory leak
unreferenced object 0xffff8881194bde00 (size 224):
  comm "syz-executor561", pid 6552, jiffies 4294943063 (age 14.410s)
  hex dump (first 32 bytes):
    a0 0c c3 1c 81 88 ff ff a0 0c c3 1c 81 88 ff ff  ................
    00 00 74 15 81 88 ff ff 00 00 00 00 00 00 00 00  ..t.............
  backtrace:
    [<000000004d60d175>] __build_skb+0x1f/0x100
    [<000000006313ec4f>] __napi_alloc_skb+0xe5/0x140
    [<000000006eb2e074>] napi_get_frags+0x3a/0x70
    [<00000000362eed0b>] tun_get_user+0xa43/0x1660
    [<000000006b720dea>] tun_chr_write_iter+0x66/0xa0
    [<0000000055bca72a>] do_iter_readv_writev+0x207/0x2d0
    [<00000000b5fc1e2e>] do_iter_write+0xac/0x230
    [<0000000047f3cd4d>] vfs_writev+0xc1/0x120
    [<000000005b212661>] do_writev+0x83/0x170
    [<00000000a49fd23e>] do_syscall_64+0x2d/0x70
    [<000000006471cee0>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff88811a1dc100 (size 224):
  comm "syz-executor561", pid 6599, jiffies 4294943606 (age 8.980s)
  hex dump (first 32 bytes):
    a0 0c c3 1c 81 88 ff ff a0 0c c3 1c 81 88 ff ff  ................
    00 00 74 15 81 88 ff ff 00 00 00 00 00 00 00 00  ..t.............
  backtrace:
    [<000000004d60d175>] __build_skb+0x1f/0x100
    [<000000006313ec4f>] __napi_alloc_skb+0xe5/0x140
    [<000000006eb2e074>] napi_get_frags+0x3a/0x70
    [<00000000362eed0b>] tun_get_user+0xa43/0x1660
    [<000000006b720dea>] tun_chr_write_iter+0x66/0xa0
    [<0000000055bca72a>] do_iter_readv_writev+0x207/0x2d0
    [<00000000b5fc1e2e>] do_iter_write+0xac/0x230
    [<0000000047f3cd4d>] vfs_writev+0xc1/0x120
    [<000000005b212661>] do_writev+0x83/0x170
    [<00000000a49fd23e>] do_syscall_64+0x2d/0x70
    [<000000006471cee0>] entry_SYSCALL_64_after_hwframe+0x44/0xa9