r0 = openat$selinux_attr(0xffffffffffffff9c, &(0x7f0000000200)='/proc/thread-self/attr/keycreate\x00', 0x2, 0x0)
write$selinux_attr(r0, &(0x7f0000000040)='system_u:object_r:chfn_exec_t:s0\x00', 0x21)