Mirrors
/
gitea
mirror of https://github.com/go-gitea/gitea.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Prevent panic on diff generation (#16950) 

The lastLeftIdx should be reset at the same time as creating a new section otherwise
it is possible for a second addition to end up attempting to read a nil entry.

Fix #16943

Signed-off-by: Andrew Thornton <art27@cantab.net>
This commit is contained in:
zeripath 2021-09-05 11:16:49 +01:00 committed by GitHub
parent eb0330a3fe
commit 0767fe0d80
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
services/gitdiff/gitdiff.go
View File

@ -996,6 +996,7 @@ func parseHunks(curFile *DiffFile, maxLines, maxLineCharacters int, input *bufio
// Create a new section to represent this hunk
curSection = &DiffSection{}
lastLeftIdx = -1
curFile.Sections = append(curFile.Sections, curSection)
lineSectionInfo := getDiffLineSectionInfo(curFile.Name, line, leftLine-1, rightLine-1)
@ -1036,6 +1037,7 @@ func parseHunks(curFile *DiffFile, maxLines, maxLineCharacters int, input *bufio
// Create a new section to represent this hunk
curSection = &DiffSection{}
curFile.Sections = append(curFile.Sections, curSection)
lastLeftIdx = -1
}
if lastLeftIdx > -1 {
diffLine.Match = lastLeftIdx
@ -1061,6 +1063,7 @@ func parseHunks(curFile *DiffFile, maxLines, maxLineCharacters int, input *bufio
// Create a new section to represent this hunk
curSection = &DiffSection{}
curFile.Sections = append(curFile.Sections, curSection)
lastLeftIdx = -1
}
if len(curSection.Lines) == 0 || curSection.Lines[len(curSection.Lines)-1].Type != DiffLineDel {
lastLeftIdx = len(curSection.Lines)
@ -1121,6 +1124,7 @@ func parseHunks(curFile *DiffFile, maxLines, maxLineCharacters int, input *bufio
curFile.IsBin = true
curFile.IsLFSFile = true
curSection.Lines = nil
lastLeftIdx = -1
}
}
}