uma: Fix KMSAN integration with malloc zones
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Authored by markj on Fri, Jul 31, 3:05 PM.

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rGc75520c5ec46: uma: Fix KMSAN integration with malloc zones
rGea7d35526878: uma: Fix KMSAN integration with malloc zones

Summary

In commit 459aa032e872 I dropped kmsan_mark() calls from malloc() on the
basis that UMA and kmem_malloc() would handle updates of the KMSAN
shadow map. However, I missed that UMA explicitly does not handle this.

Modify UMA to only omit origin map updates for malloc zones.

Fixes: 459aa032e872 ("malloc: Refactor redzone and sanitizer handling")

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rG FreeBSD src repository

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Event Timeline

markj created this revision.Fri, Jul 31, 3:05 PM

Herald added a subscriber: imp. · View Herald TranscriptFri, Jul 31, 3:05 PM

markj requested review of this revision.Fri, Jul 31, 3:05 PM

Harbormaster completed remote builds in B75317: Diff 183161.Fri, Jul 31, 3:05 PM

Oops, I missed that too.

This revision is now accepted and ready to land.Fri, Jul 31, 3:36 PM

Closed by commit rGea7d35526878: uma: Fix KMSAN integration with malloc zones (authored by markj). · Explain WhyFri, Jul 31, 7:48 PM

This revision was automatically updated to reflect the committed changes.

markj added a commit: rGea7d35526878: uma: Fix KMSAN integration with malloc zones.

markj added a commit: rGc75520c5ec46: uma: Fix KMSAN integration with malloc zones.Mon, Aug 24, 4:30 PM

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sys/

vm/

uma_core.c

10 lines

Diff 183182

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uma: Fix KMSAN integration with malloc zonesClosedPublicActions