Security context

What an agent needs to avoid regressing past fixes and find the next vuln in this repo.

DeepBrainChain/DeepBrainChain-MainChain
master @ aaed4d8
2
Fixes
0
CVEs
HIGH
Peak severity
0.0%
Coverage
Highlights
Auth Bypass: 1 prior fix. Scrutinize any change in this area.
pallets/rent-machine/src/lib.rs: most-fixed (1 issue). Treat as high-risk during review.
2 high-severity fixes in this history; regressions here are high-impact.
Recurring patterns

The bug types that recur here, drawn from past fixes, not open vulnerabilities.

Integer Overflow: Unsafe arithmetic in GPU extra price calculations silently fell back to zero on overflow, allowing malicious users to bypass rental charges. Developers must ensure all token and price calculations use strict checked arithmetic and explicitly propagate errors rather than using unwrap_or(0).
Auth Bypass: A lack of enforcement of disabled validator lists allowed restricted nodes to bypass administrative controls and register as active validators. Security-sensitive administrative states must be actively queried and enforced during registration and state-transition entry points.