Hi Linus,
Prior to Linux 5.8 the SHA1 "boot_aggregate" value was padded with 0's
and extended into the other TPM 2.0 banks. Included in the Linux 5.8
open window, TPM 2.0 PCR bank specific "boot_aggregate" values (PCRs 0
- 7) are calculated and extended into the TPM banks.
Distro releases are now shipping grub2 with TPM support, which extend
PCRs 8 & 9. I'd like for PCRs 8 & 9 to be included in the new
"boot_aggregate" calculations. For backwards compatibility, PCRs 8 &
9 are not included in the SHA1 TPM bank "boot_aggregate" calculation.
I'd appreciate your merging this additional change.
thanks,
Mimi
The following changes since commit 48778464bb7d346b47157d21ffde2af6b2d39110:
Linux 5.8-rc2 (2020-06-21 15:45:29 -0700)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity.git tags/integrity-v5.8-fix-2
for you to fetch changes up to 20c59ce010f84300f6c655d32db2610d3433f85c:
ima: extend boot_aggregate with kernel measurements (2020-06-24 20:47:24 -0400)
----------------------------------------------------------------
Include PCRs 8 & 9 in per TPM 2.0 bank boot_aggregate calculation
----------------------------------------------------------------
Maurizio Drocco (1):
ima: extend boot_aggregate with kernel measurements
security/integrity/ima/ima.h | 2 +-
security/integrity/ima/ima_crypto.c | 15 ++++++++++++++-
2 files changed, 15 insertions(+), 2 deletions(-)
