On Wed Sep 25 19, Jarkko Sakkinen wrote:
On Wed, Sep 25, 2019 at 12:25:05PM +0200, Ard Biesheuvel wrote:
On Wed, 25 Sep 2019 at 12:16, Jarkko Sakkinen jarkko.sakkinen@linux.intel.com wrote:
From: Peter Jones pjones@redhat.com
Some machines generate a lot of event log entries. When we're iterating over them, the code removes the old mapping and adds a new one, so once we cross the page boundary we're unmapping the page with the count on it. Hilarity ensues.
This patch keeps the info from the header in local variables so we don't need to access that page again or keep track of if it's mapped.
Fixes: 44038bc514a2 ("tpm: Abstract crypto agile event size calculations") Cc: linux-efi@vger.kernel.org Cc: linux-integrity@vger.kernel.org Cc: stable@vger.kernel.org Signed-off-by: Peter Jones pjones@redhat.com Tested-by: Lyude Paul lyude@redhat.com Reviewed-by: Jarkko Sakkinen jarkko.sakkinen@linux.intel.com Acked-by: Matthew Garrett mjg59@google.com Acked-by: Ard Biesheuvel ard.biesheuvel@linaro.org Signed-off-by: Jarkko Sakkinen jarkko.sakkinen@linux.intel.com
Thanks Jarkko.
Shall I take these through the EFI tree?
Would be great, if you could because I already sent one PR with fixes for v5.4-rc1 yesterday.
/Jarkko
My patch collides with this, so I will submit a v3 that applies on top of these once I've run a test with all 3 applied on this t480s.