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(parent: 2b1d0c0) | patch
shared shadow vm object invalidation regression test
authorRyan Libby <rlibby@FreeBSD.org>
Wed, 7 Apr 2021 19:39:05 +0000 (12:39 -0700)
committerRyan Libby <rlibby@FreeBSD.org>
Wed, 7 Apr 2021 19:39:05 +0000 (12:39 -0700)
commit13d4f96130b64b42f74dfc484305b08c4da54669
treea5c2dd1432810c04f63c07d5c49e96f0506acd86tree | snapshot
parent2b1d0c0087a907fe9944b96c6313711865f9674acommit | diff
shared shadow vm object invalidation regression test

Add a regression test for a scenario where a shadow vm object is shared
by multiple mappings.  If a page COW occurs through one of the mappings,
then the virtual-to-physical mapping may become invalidated.

This tests the scenario from CVE-2021-29626 which was fixed by
982693bb729badac4e65ecd59772979f2849a2b2.

Reviewed by: markj
Sponsored by: Dell EMC Isilon
tests/sys/vm/Makefile diff | blob | history
tests/sys/vm/shared_shadow_inval_test.c [new file with mode: 0644] blob
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