signalfd4(0xffffffffffffffff, &(0x7f0000000280), 0x8, 0x0) r0 = syz_open_procfs(0x0, &(0x7f0000000140)='fdinfo/3\x00') readv(r0, &(0x7f0000000180)=[{&(0x7f00000004c0)=""/4083, 0xff3}], 0x1)