Potential fix for code scanning alert no. 268: Incorrect conversion between integer types #26
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
…etween integer types Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>
![github-advanced-security[bot]](https://avatars.githubusercontent.com/in/57789?s=60&v=4){kind=small}
| if value < float64(math.MinInt64) || value > float64(math.MaxInt64) { | ||
| return nil, ErrInvalidSystemVariableValue.New(t.varName, v) | ||
| if value >= float64(math.MinInt64) && value <= float64(math.MaxInt64) { | ||
| intValue := int64(value) |
Check failure
Code scanning / CodeQL
Incorrect conversion between integer types High
Show autofix suggestion
Hide autofix suggestion
Copilot Autofix
AI 5 months ago
To address the issue, we need to ensure that the conversion from float64 to int64 is safe and does not allow untrusted or out-of-range values to propagate. The best approach is to add explicit bounds checks for the float64 value before performing the conversion. Additionally, we should ensure that the t.SetType.Convert(intValue) call is only executed if the value is guaranteed to be safe.
- Add a check to ensure that the
float64value is within the range ofint64and does not exceed the bounds of the target type. - If the value is out of range or invalid, return an appropriate error or fallback value.
- Modify the
Convertmethod insql/system_settype.goto include these additional checks.
Suggested changeset
1
sql/system_settype.go
| @@ -95,3 +95,6 @@ | ||
| if float64(intValue) == value { | ||
| return t.SetType.Convert(intValue) | ||
| // Ensure the intValue is within the bounds of the target type | ||
| if intValue >= math.MinInt64 && intValue <= math.MaxInt64 { | ||
| return t.SetType.Convert(intValue) | ||
| } | ||
| } | ||
| @@ -99,2 +102,3 @@ | ||
| return nil, ErrInvalidSystemVariableValue.New(t.varName, v) | ||
| return nil, ErrInvalidSystemVariableValue.New(t.varName, v) | ||
| case decimal.Decimal: |
Copilot is powered by AI and may make mistakes. Always verify output.
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Potential fix for https://github.com/trimble-oss/go-mysql-server/security/code-scanning/268
To address the issue, the conversion from
float64toint64should be modified to ensure that the bounds check is performed before the conversion. Additionally, the logic should be updated to avoid relying on implicit assumptions about the safety of the conversion. This can be achieved by explicitly checking the bounds and returning an error if the value is out of range.The fix involves:
float64toint64.Convertmethod insystemSetTypeto handle edge cases explicitly.Suggested fixes powered by Copilot Autofix. Review carefully before merging.