Comment 11 for bug 1968131

I think I got it, it is around that .rnd file as mentioned in the log.

Indeed after running this as root I have:
$ sudo ls -laF /root/.rnd
-rw------- 1 root root 1024 Apr 7 08:16 /root/.rnd

But running as swtpm I get this with strace:

This is the initial failure:
 [pid 3049] 13:10:20 (+ 0.000102) openat(AT_FDCWD, "./.rnd", O_RDONLY) = -1 EACCES (Permission denied)
 [pid 3047] 13:10:20 (+ 0.000027) read(5, "Can't load ./.rnd into RNG\n40977"..., 4096) = 161

And the others are follow ups:

[pid 3049] 13:10:20 (+ 0.000153) newfstatat(AT_FDCWD, "./.rnd", 0x7ffec42c6260, 0) = -1 EACCES (Permission denied)
[pid 3049] 13:10:20 (+ 0.000099) openat(AT_FDCWD, "./.rnd", O_WRONLY|O_CREAT, 0600) = -1 EACCES (Permission denied)
[pid 3049] 13:10:20 (+ 0.000112) openat(AT_FDCWD, "./.rnd", O_WRONLY|O_CREAT|O_TRUNC, 0666) = -1 EACCES (Permission denied)
[pid 3049] 13:10:20 (+ 0.000101) write(2, "Cannot write random bytes:\n", 27) = 27
[pid 3049] 13:10:20 (+ 0.000104) write(2, "40977E3CD27F0000:error:12000079:"..., 135 <unfinished ...>