[Bug 1187360] tpm2_eventlog cannot read /sys/kernel/security/tpm0/binary_bios_measurements

https://bugzilla.suse.com/show_bug.cgi?id=1187360 https://bugzilla.suse.com/show_bug.cgi?id=1187360#c3

--- Comment #3 from Alberto Planas Dominguez aplanas@suse.com --- (In reply to Gary Ching-Pang Lin from comment #2)

It seems tpm2_eventlog tried to do "fseek(fp, 0, SEEK_END)" but the securityfs entry didn't return the size.

I didn't see any suspicious change in tpm driver between 5.12.4 and 5.12.9 and there is even no change in securityfs (security/inode.c).

Interesting. I will share this with upstream.

The test that I did in https://bugzilla.suse.com/show_bug.cgi?id=1185869#c11 suggest that this was working as expected before, and I am still using the same tpm2-tools version.