fix(memory): avoid overflow in sum of memory region lengths #5482
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The fuzzer caught an issue with the sum of the memory region lengths that could lead to an overflow as there is no check. Replace the sum with a try_fold to also check for overflow. Signed-off-by: Riccardo Mancini <[email protected]>
Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## main #5482 +/- ##
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Coverage 82.73% 82.73%
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Files 269 269
Lines 27795 27798 +3
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+ Hits 22997 23000 +3
Misses 4798 4798
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Manciukic
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Status: Awaiting review
ShadowCurse
approved these changes
Oct 16, 2025
kalyazin
approved these changes
Oct 16, 2025
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Changes
The fuzzer caught an issue with the sum of the memory region lengths that could lead to an overflow as there is no check. Replace the sum with a try_fold to also check for overflow.
Reason
Fuzzer went grrr.
License Acceptance
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how they are solving the problem in a clear and encompassing way.
in the PR.
CHANGELOG.md.Runbook for Firecracker API changes.
integration tests.
TODO.rust-vmm.