A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-28 10:41:38 -04:00
Code Issues Projects Releases Packages Wiki Activity

KEYS: trusted: correctly initialize digests and fix locking issue

Browse source 
Commit 0b6cf6b97b ("tpm: pass an array of tpm_extend_digest structures to
tpm_pcr_extend()") modifies tpm_pcr_extend() to accept a digest for each
PCR bank. After modification, tpm_pcr_extend() expects that digests are
passed in the same order as the algorithms set in chip->allocated_banks.

This patch fixes two issues introduced in the last iterations of the patch
set: missing initialization of the TPM algorithm ID in the tpm_digest
structures passed to tpm_pcr_extend() by the trusted key module, and
unreleased locks in the TPM driver due to returning from tpm_pcr_extend()
without calling tpm_put_ops().

Cc: [email protected]
Fixes: 0b6cf6b97b ("tpm: pass an array of tpm_extend_digest structures to tpm_pcr_extend()")
Signed-off-by: Roberto Sassu <[email protected]>
Suggested-by: Jarkko Sakkinen <[email protected]>
Reviewed-by: Jerry Snitselaar <[email protected]>
Reviewed-by: Jarkko Sakkinen <[email protected]>
Signed-off-by: Jarkko Sakkinen <[email protected]>
This commit is contained in:
Roberto Sassu 2019-09-13 20:51:36 +02:00 • committed by Jarkko Sakkinen
commit 9f75c82246
2 changed files with 14 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

5
security/keys/trusted.c
View file

@ -1228,11 +1228,16 @@ hashalg_fail:
static int __init init_digests(void)
{
int i;
digests = kcalloc(chip->nr_allocated_banks, sizeof(*digests),
GFP_KERNEL);
if (!digests)
return -ENOMEM;
for (i = 0; i < chip->nr_allocated_banks; i++)
digests[i].alg_id = chip->allocated_banks[i].alg_id;
return 0;
}