Security context

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

spacejam/sled
main @ e449d17
3
Fixes
0
CVEs
HIGH
Peak severity
Highlights
Memory Safety: 2 prior fixes. Scrutinize any change in this area.
crates/pagetable/src/lib.rs: most-fixed (1 issue). Treat as high-risk during review.
3 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.

Memory Safety: Mismanagement of owned box pointers during serialization and take operations can lead to use-after-free and double-free vulnerabilities when the inline vector representation is transitively dropped. Developers must ensure the borrowed state is strictly tracked and enforced.
Memory Safety: Deallocating active nodes in the page table while external references still exist results in use-after-free vulnerabilities when the parent Tree is dropped. Safe concurrent reclamation requires deferring node drops using epoch-based reclamation.
Memory Corruption: Improperly initializing node pointers during LRU doubly linked list insertions leads to dangling pointers and memory corruption. Manual pointer updates on head and tail nodes require meticulous bounds and initialization checks.