RESOLVED FIXED306192
[bmalloc] handle multiple regions in vmZeroAndPurge on windows 
https://bugs.webkit.org/show_bug.cgi?id=306192
Summary [bmalloc] handle multiple regions in vmZeroAndPurge on windows
Dylan Conway
Reported 2026-01-24 15:48:10 PST
Two bugs in vmZeroAndPurge on Windows: 1. If the input pointer+size spans more than one region DiscardVirtualMemory / VirtualFree(MEM_DECOMMIT) / VirtualAlloc(MEM_COMMIT) will fail. 2. DiscardVirtualMemory does not guarantee zeroing the memory so we need to use VirtualFree(MEM_DECOMMIT) / VirtualAlloc(MEM_COMMIT) instead
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EWS
Comment 1 2026-01-25 12:04:55 PST
Committed 306171@main (adb333973f88): <https://commits.webkit.org/306171@main> Reviewed commits have been landed. Closing PR #57187 and removing active labels.
Radar WebKit Bug Importer
Comment 2 2026-01-25 12:05:13 PST
<rdar://problem/168877040>
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