They must have enabled trapping integer overflow somehow, unless they were testing with a debug build(?), per https://blocksecteam.medium.com/new-integer-overfl

They must have enabled trapping integer overflow somehow, unless they were testing with a debug build(?), per https://blocksecteam.medium.com/new-integer-overflow-bug-discovered-in-solana-rbpf-7729717159ee https://blocksecteam.medium.com/new-integer-overflow-bug-dis...: > every validator would run the target ELF file and the rBPF would get panic with “add with overflow” I did not see overflow-checks = true in the cargo.toml though.