Wind River Support Network


SCP7-717 : Security Advisory - linux - CVE-2017-1000405

Created: Dec 3, 2017    Updated: Sep 8, 2018
Resolved Date: Dec 4, 2017
Found In Version:
Fix Version:
Severity: Standard
Applicable for: Wind River Linux 7
Component/s: Kernel


mm, thp: Do not make page table dirty unconditionally in touch_p[mu]d()

Currently, we unconditionally make page table dirty in touch_pmd().
It may result in false-positive can_follow_write_pmd().

We may avoid the situation, if we would only make the page table entry
dirty if caller asks for write access -- FOLL_WRITE.

Upstream commit a8f97366452ed491d13cf1e44241bc0b5740b1f0 fixed this issue.

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