Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.15.204' (ECDSA) to the list of known hosts. executing program executing program executing program BUG: memory leak unreferenced object 0xffff888118127200 (size 32): comm "syz-executor065", pid 6637, jiffies 4294943018 (age 15.280s) hex dump (first 32 bytes): 80 90 64 84 ff ff ff ff 18 49 b4 83 ff ff ff ff ..d......I...... 00 00 00 00 00 00 00 00 5f 74 3a 73 30 00 00 00 ........_t:s0... backtrace: [<00000000929f6d47>] kmalloc include/linux/slab.h:555 [inline] [<00000000929f6d47>] genl_dumpit_info_alloc net/netlink/genetlink.c:463 [inline] [<00000000929f6d47>] genl_family_rcv_msg_dumpit net/netlink/genetlink.c:598 [inline] [<00000000929f6d47>] genl_family_rcv_msg net/netlink/genetlink.c:715 [inline] [<00000000929f6d47>] genl_rcv_msg+0x360/0x520 net/netlink/genetlink.c:735 [<000000008632f8ba>] netlink_rcv_skb+0x5a/0x180 net/netlink/af_netlink.c:2469 [<0000000060c44f68>] genl_rcv+0x24/0x40 net/netlink/genetlink.c:746 [<00000000295f8e41>] netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline] [<00000000295f8e41>] netlink_unicast+0x20a/0x2f0 net/netlink/af_netlink.c:1329 [<0000000036ca1a29>] netlink_sendmsg+0x2b5/0x560 net/netlink/af_netlink.c:1918 [<000000007d78e18b>] sock_sendmsg_nosec net/socket.c:652 [inline] [<000000007d78e18b>] sock_sendmsg+0x4c/0x60 net/socket.c:672 [<00000000ee1507e6>] sock_no_sendpage+0x8c/0xb0 net/core/sock.c:2763 [<0000000025f77bb2>] kernel_sendpage+0x45/0x80 net/socket.c:3808 [<00000000890a8c76>] sock_sendpage+0x40/0x50 net/socket.c:950 [<00000000901c0d2b>] pipe_to_sendpage+0x87/0xe0 fs/splice.c:458 [<0000000043945694>] splice_from_pipe_feed fs/splice.c:512 [inline] [<0000000043945694>] __splice_from_pipe+0x14a/0x250 fs/splice.c:636 [<00000000ca026550>] splice_from_pipe+0x70/0xb0 fs/splice.c:671 [<0000000064564c7b>] do_splice_from fs/splice.c:863 [inline] [<0000000064564c7b>] do_splice+0x3a9/0x780 fs/splice.c:1170 [<00000000a9840dcc>] __do_sys_splice fs/splice.c:1447 [inline] [<00000000a9840dcc>] __se_sys_splice fs/splice.c:1427 [inline] [<00000000a9840dcc>] __x64_sys_splice+0x12b/0x140 fs/splice.c:1427 [<00000000a28a2399>] do_syscall_64+0x6e/0x220 arch/x86/entry/common.c:295 [<000000001b4b4dfa>] entry_SYSCALL_64_after_hwframe+0x44/0xa9