Fix integer overflow on guest-derived usize arithmetic#6

Merged

CvvT merged 3 commits intomainfrom

copilot/fix-integer-overflow-vulnerabilities-again

Feb 23, 2026

Commits on Feb 23, 2026

Initial plan
Copilot
committed
Fix integer overflow vulnerabilities: use wrapping/checked arithmetic on guest-derived usize values

Copilot
and
CvvT
committed
Revert wrapping_add in signal/mod.rs: sp+size is validated at registration time

Copilot
and
CvvT
committed