r0 = socket$nl_xfrm(0x10, 0x3, 0x6)
sendmmsg(r0, &(0x7f0000005a40)=[{{0x0, 0x0, &(0x7f0000000140)=[{&(0x7f00000001c0)="aa", 0x1}], 0x1}}, {{0x0, 0x0, 0x0}}], 0x2, 0x0)