BUG: memory leak unreferenced object 0xffff88810f402d00 (size 232): comm "syz-executor486", pid 8416, jiffies 4294943639 (age 13.060s) 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 00 00 00 00 00 00 00 ................ backtrace: [] __alloc_skb+0x20f/0x280 net/core/skbuff.c:413 [] alloc_skb include/linux/skbuff.h:1107 [inline] [] xfrm_alloc_compat+0x1d6/0x6d0 net/xfrm/xfrm_compat.c:324 [] xfrm_alloc_userspi+0x29c/0x3f0 net/xfrm/xfrm_user.c:1448 [] xfrm_user_rcv_msg+0x208/0x3e0 net/xfrm/xfrm_user.c:2812 [] netlink_rcv_skb+0x87/0x1d0 net/netlink/af_netlink.c:2504 [] xfrm_netlink_rcv+0x32/0x40 net/xfrm/xfrm_user.c:2824 [] netlink_unicast_kernel net/netlink/af_netlink.c:1314 [inline] [] netlink_unicast+0x392/0x4c0 net/netlink/af_netlink.c:1340 [] netlink_sendmsg+0x368/0x6a0 net/netlink/af_netlink.c:1929 [] sock_sendmsg_nosec net/socket.c:654 [inline] [] sock_sendmsg+0x56/0x80 net/socket.c:674 [] sock_no_sendpage+0x8f/0xc0 net/core/sock.c:2862 [] kernel_sendpage.part.0+0xeb/0x150 net/socket.c:3631 [] kernel_sendpage net/socket.c:3628 [inline] [] sock_sendpage+0x5b/0x90 net/socket.c:947 [] pipe_to_sendpage+0xa2/0x110 fs/splice.c:364 [] splice_from_pipe_feed fs/splice.c:418 [inline] [] __splice_from_pipe+0x1e2/0x330 fs/splice.c:562 [] splice_from_pipe fs/splice.c:597 [inline] [] generic_splice_sendpage+0x6f/0xa0 fs/splice.c:746 [] do_splice_from fs/splice.c:767 [inline] [] direct_splice_actor+0x4b/0x70 fs/splice.c:936