ECDSA) to the list of known hosts.
executing program
executing program
executing program
executing program
BUG: memory leak
unreferenced object 0xffff88812adb1f00 (size 224):
  comm "syz-executor325", pid 7131, jiffies 4294948450 (age 13.180s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 a0 a4 1f 81 88 ff ff  ................
  backtrace:
    [<000000009de6eee7>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline]
    [<000000009de6eee7>] slab_post_alloc_hook mm/slab.h:439 [inline]
    [<000000009de6eee7>] slab_alloc_node mm/slab.c:3269 [inline]
    [<000000009de6eee7>] kmem_cache_alloc_node+0x153/0x2a0 mm/slab.c:3579
    [<000000005fcfcd72>] __alloc_skb+0x6e/0x210 net/core/skbuff.c:194
    [<00000000dde87fec>] alloc_skb include/linux/skbuff.h:1054 [inline]
    [<00000000dde87fec>] sock_omalloc+0x4e/0x90 net/core/sock.c:2098
    [<00000000ba8dc69d>] sock_zerocopy_alloc+0x3c/0xf0 net/core/skbuff.c:975
    [<00000000e15a8d52>] sock_zerocopy_realloc+0x7b/0x110 net/core/skbuff.c:1045
    [<000000008e85ef09>] __ip6_append_data.isra.0+0x8f4/0x10e0 net/ipv6/ip6_output.c:1340
    [<00000000dea91c5b>] ip6_append_data+0xf1/0x180 net/ipv6/ip6_output.c:1623
    [<000000005a467530>] udpv6_sendmsg+0xb23/0x1050 net/ipv6/udp.c:1494
    [<0000000078620ec4>] inet_sendmsg+0x64/0x120 net/ipv4/af_inet.c:798
    [<0000000064bd1fce>] sock_sendmsg_nosec net/socket.c:646 [inline]
    [<0000000064bd1fce>] sock_sendmsg+0x54/0x70 net/socket.c:665
    [<000000006b1aec58>] __sys_sendto+0x148/0x1f0 net/socket.c:1958
    [<00000000adc23cb9>] __do_sys_sendto net/socket.c:1970 [inline]
    [<00000000adc23cb9>] __se_sys_sendto net/socket.c:1966 [inline]
    [<00000000adc23cb9>] __x64_sys_sendto+0x2a/0x30 net/socket.c:1966
    [<0000000058813371>] do_syscall_64+0x76/0x1a0 arch/x86/entry/common.c:301
    [<00000000bac3c446>] entry_SYSCALL_64_after_hwframe+0x44/0xa9