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

Stefan Bader stefan.bader at canonical.com
Fri Jun 28 14:23:31 UTC 2019


On 24.06.19 10:10, Ivan Hu wrote:
> BugLink: https://bugs.launchpad.net/bugs/1833297
> 
> [Impact]
> Most of the TPM2 commands fail to execute due to tpm2 kernel driver having async access problem.
> 
> [Fix]
> 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(-)
> 
Seems this is already committed via v5.0.10 upstream stable.



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