r0 = openat$selinux_attr(0xffffffffffffff9c, &(0x7f00000000c0)='/proc/thread-self/attr/exec\x00', 0x2, 0x0)
write$selinux_attr(r0, &(0x7f0000000180)='system_u:object_r:sendmail_exec_t:s0\x00', 0x25)