x/evm/types: properly split in 32 chunks trace.Memory

CHANGELOG.md

@@ -51,6 +51,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 ### Bug Fixes
 
 * (rpc) [tharsis#831](https://github.com/tharsis/ethermint/pull/831) Fix BaseFee value when height is specified.
+* (evm) [tharsis#838](https://github.com/tharsis/ethermint/pull/838) Fix splitting of trace.Memory into 32 chunks.
 
 ## [v0.9.0] - 2021-12-01
 

x/evm/types/tracer.go

@@ -101,8 +101,13 @@ func FormatLogs(logs []vm.StructLog) []StructLogRes {
 
  if trace.Memory != nil {
  memory := make([]string, 0, (len(trace.Memory)+31)/32)
- for i := 0; i+32 <= len(trace.Memory); i += 32 {
- memory = append(memory, fmt.Sprintf("%x", trace.Memory[i:i+32]))
+ for i, n := 0, len(trace.Memory); i < n; {
+ end := i + 32
+ if end >= n {
+ end = n
+ }
+ memory = append(memory, fmt.Sprintf("%x", trace.Memory[i:end]))
+ i = end
  }
  formatted[index].Memory = &memory
  }