Merge pull request #1050 from wader/progressreaderseeker-growing-file…

…-fix progressreaderseeker: Dont't index out of bounds for a growing file
wader · Dec 19, 2024 · 8c0d6a4 · 8c0d6a4
2 parents 36d738e + 8abd602
commit 8c0d6a4
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/internal/progressreadseeker/progressreaderseeker.go b/internal/progressreadseeker/progressreaderseeker.go
@@ -39,7 +39,8 @@ func (prs *Reader) Read(p []byte) (n int, err error) {
 	partEnd := newPos / prs.partitionSize
 
 	for i := partStart; i < partEnd; i++ {
-		if prs.partitions[i] {
+		// protect reading from a growing file
+		if i >= int64(len(prs.partitions)) || prs.partitions[i] {
 			continue
 		}
 		prs.partitions[i] = true