Research / Finding
WebGPU presentation sizing hardening after integer-overflow report
F-MOZILLA-FIREFOX-001
Public snapshot: 26 Sep 2026. Status, releases and attribution belong to each source below; none is inferred from another record.
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Recorded evidence
—score not recorded
WebGPU presentation sizing hardening after integer-overflow report
fixed publicly
details
- Finding IDs
- F-MOZILLA-FIREFOX-001
- Status
- fixed publicly
- Reported via
- Bugzilla
- Note
- bug 2018451. public fix 2f8a8fdd43a4 / autoland 67153f39ea54. public case is a hardening fix after report, not a confirmed exploitable security bug.
F-MOZILLA-FIREFOX-001: Memory safety. The recorded WebGPU hardening addresses size arithmetic; reachable exploitation remains unconfirmed. Reviewed 24 Sep 2026. Mechanism assessed by 1seal.
Mechanism source for F-MOZILLA-FIREFOX-001
Security area (1seal assessment): Memory safety. The change hardens WebGPU presentation-buffer size arithmetic. The vendor discussion disputes reachability of the reported overflow; this category does not assert exploitability. Reviewed 21 Sep 2026.
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