executing program executing program executing program BUG: memory leak unreferenced object 0xffff88811e77b780 (size 128): comm "syz-executor608", pid 6491, jiffies 4294941957 (age 13.020s) 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: [<000000007f9e7d04>] kmalloc include/linux/slab.h:555 [inline] [<000000007f9e7d04>] kzalloc include/linux/slab.h:669 [inline] [<000000007f9e7d04>] ctnetlink_alloc_filter+0x3a/0x2a0 net/netfilter/nf_conntrack_netlink.c:924 [<00000000f4cef9d6>] ctnetlink_start+0x3a/0x80 net/netfilter/nf_conntrack_netlink.c:998 [<0000000041ccfeed>] __netlink_dump_start+0x1a3/0x2e0 net/netlink/af_netlink.c:2343 [<00000000d7a2ac1a>] netlink_dump_start include/linux/netlink.h:246 [inline] [<00000000d7a2ac1a>] ctnetlink_get_conntrack+0x26d/0x2f0 net/netfilter/nf_conntrack_netlink.c:1611 [<000000000ca1b958>] nfnetlink_rcv_msg+0x32f/0x370 net/netfilter/nfnetlink.c:229 [<000000002a336f86>] netlink_rcv_skb+0x5a/0x180 net/netlink/af_netlink.c:2469 [<00000000cf9bdc33>] nfnetlink_rcv+0x83/0x1b0 net/netfilter/nfnetlink.c:563 [<0000000067b577d1>] netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline] [<0000000067b577d1>] netlink_unicast+0x20a/0x2f0 net/netlink/af_netlink.c:1329 [<0000000009bf0bcb>] netlink_sendmsg+0x2b5/0x560 net/netlink/af_netlink.c:1918 [<00000000aa515c2b>] sock_sendmsg_nosec net/socket.c:652 [inline] [<00000000aa515c2b>] sock_sendmsg+0x4c/0x60 net/socket.c:672 [<000000004363b7da>] ____sys_sendmsg+0x2c4/0x2f0 net/socket.c:2352 [<000000001c345499>] ___sys_sendmsg+0x8a/0xd0 net/socket.c:2406 [<00000000d8d02ae1>] __sys_sendmsg+0x77/0xe0 net/socket.c:2439 [<000000006083a37e>] do_syscall_64+0x6e/0x220 arch/x86/entry/common.c:295 [<000000009d71e6c4>] entry_SYSCALL_64_after_hwframe+0x44/0xa9