r0 = openat$sysfs(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/config', 0x0, 0x0)
r1 = openat$thread_pidfd(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0)
dup2(r1, r0)
unlinkat(r0, &(0x7f0000000000)='./file0\x00', 0x0)