socketpair$unix(0x1, 0x1, 0x0, &(0x7f00000000c0)={<r0=>0xffffffffffffffff})
r1 = gettid()
sendmsg$unix(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000380)=[{&(0x7f0000000300)="a2", 0xfd34}], 0xc0, &(0x7f0000000600)=[@cred={{0x1c, 0x1, 0x2, {r1}}}], 0x20}, 0x0)