[PATCH 0/1][SRU][D]Ubuntu 19.04's Linux kernel 5.0.0-17 has regressed TPM2 functionality

Ivan Hu ivan.hu at canonical.com
Mon Jun 24 08:10:12 UTC 2019

BugLink: https://bugs.launchpad.net/bugs/1833297

Most of the TPM2 commands fail to execute due to tpm2 kernel driver having async access problem.

Fix an invalid poll condition.

[Test Case]
After applied the fix patch on 19.04, the TPM2 commands tpm2_nvlist and tpm2_pcrlist worked.

[Regression Potential]
Low, only a fix for the commit 9488585b21bef0df12 ("tpm: add support for partial reads")

Tadeusz Struk (1):
  tpm: fix an invalid condition in tpm_common_poll

 drivers/char/tpm/tpm-dev-common.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)


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