r0 = openat$selinux_attr(0xffffffffffffff9c, &(0x7f0000000100)='/proc/thread-self/attr/exec\x00', 0x2, 0x0)
preadv(r0, &(0x7f00000004c0)=[{&(0x7f0000000140)=""/187, 0xbb}], 0x1, 0x0, 0x0)