r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$netlink(r0, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000340)=[{&(0x7f0000000000)=ANY=[@ANYBLOB="140000001200ffff000000000004000080"], 0x14}], 0x1}, 0x0) syz_open_procfs$userns(0x0, &(0x7f0000000040)) recvmmsg(r0, &(0x7f0000003400)=[{{0x0, 0x0, 0x0}}], 0x1, 0x0, 0x0)