Skip to content

Fix EXT4 extent offset double-counting causing block address overflow #462

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Closed
Ronitsabhaya75 wants to merge 3 commits into from
Closed

Fix EXT4 extent offset double-counting causing block address overflow #462

Changes from 1 commit
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
48acf79
Fix EXT4 extent offset double-counting causing block address overflow
Ronitsabhaya75 Dec 30, 2025
6811c56
removed the comments
Ronitsabhaya75 Dec 31, 2025
b0c47bf
Merge branch 'apple:main' into main
Ronitsabhaya75 Jan 11, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 1 addition & 1 deletion Sources/ContainerizationEXT4/EXT4+Formatter.swift
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1135,7 +1135,7 @@ extension EXT4 {
let offset = i * extentsPerBlock * EXT4.MaxBlocksPerExtent
fillExtents(
node: &leafNode, numExtents: extentsInBlock, numBlocks: dataBlocks,
start: blocks.start + offset,
start: blocks.start, //Fixed: removed '+ offset' to prevent double-counting
offset: offset)
try withUnsafeLittleEndianBytes(of: leafNode.header) { bytes in
try self.handle.write(contentsOf: bytes)
Expand Down