r0 = creat(&(0x7f00000003c0)='./file0\x00', 0x0)
newfstatat(0xffffffffffffff9c, 0x0, &(0x7f0000002640)={0x0, 0x0, 0x0, 0x0, <r1=>0x0}, 0x1100)
setresuid(0x0, r1, 0x0)
r2 = openat$procfs(0xffffffffffffff9c, &(0x7f0000000140)='/proc/keys\x00', 0x0, 0x0)
sendfile(r0, r2, 0x0, 0x4000000000000)