Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 9705a6950cd208fcc5478b5eb09d71b128d46bdf
https://github.com/WebKit/WebKit/commit/9705a6950cd208fcc5478b5eb09d71b128d46bdf
Author: Marcus Plutowski <[email protected]>
Date: 2026-01-21 (Wed, 21 Jan 2026)
Changed paths:
M Source/bmalloc/libpas/src/libpas/pas_bitfit_page_inlines.h
M Source/bmalloc/libpas/src/libpas/pas_mte_config.h
Log Message:
-----------
[libpas] Fix and re-enable retag-on-scavenge
https://bugs.webkit.org/show_bug.cgi?id=305435
rdar://165772439
Reviewed by Yusuke Suzuki and Dan Hecht.
Previously, we were doing the tag-writes outside of the mutex which
guards the allocation metadata; this was unsafe since it also takes
place strictly after the slot is returned to use, so it's possible for
the memory to be re-allocated while we're tagging it.
Canonical link: https://commits.webkit.org/305977@main
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