r0 = openat$selinux_attr(0xffffffffffffff9c, &(0x7f0000001080)='/proc/self/attr/keycreate\x00', 0x2, 0x0)
pwritev2(r0, &(0x7f0000001240)=[{&(0x7f00000010c0)='M', 0x1}], 0x1, 0x0, 0x0, 0x10)