Bug 300151
| Summary: | [libpas] Enable MTE Retag on Scavenge for privileged processes | ||
|---|---|---|---|
| Product: | WebKit | Reporter: | Marcus Plutowski <marcus_plutowski> |
| Component: | bmalloc | Assignee: | Nobody <webkit-unassigned> |
| Status: | RESOLVED FIXED | ||
| Severity: | Normal | CC: | commit-queue, ggaren, webkit-bug-importer |
| Priority: | P2 | Keywords: | InRadar |
| Version: | WebKit Nightly Build | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Bug Depends on: | 300197 | ||
| Bug Blocks: | |||
Marcus Plutowski
rdar://156723433
This is an MTE hardening feature which helps catch use-after-frees by retagging objects as we scavenge them. It has a significant performance cost, but as long as we only enable it for privileged processes that cost disappears.
| Attachments | ||
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| Add attachment proposed patch, testcase, etc. |
Marcus Plutowski
Pull request: https://github.com/WebKit/WebKit/pull/51785
EWS
Committed 300987@main (34584723de5b): <https://commits.webkit.org/300987@main>
Reviewed commits have been landed. Closing PR #51785 and removing active labels.
WebKit Commit Bot
Re-opened since this is blocked by bug 300197
Marcus Plutowski
<rdar://problem/15672433>
Marcus Plutowski
Pull request: https://github.com/WebKit/WebKit/pull/54197
EWS
Committed 303411@main (742c2f8c7a2a): <https://commits.webkit.org/303411@main>
Reviewed commits have been landed. Closing PR #54197 and removing active labels.