IT

Tracker / CVE-2024-39469

CVE-2024-39469

High 7.1

In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix nilfs_empty_dir() misjudgment and long loop on I/O errors The error handling in nilfs_empty_dir() when a directory folio/page read fails is incorrect, as in the old ext2 implementation, and if the folio/page cannot be read or nilfs_check_folio() fails, it will falsely determine the directory as empty and corrupt the file system. In addition, since nilfs_empty_dir() does not immediately return on a failed folio/page read, but continues to loop, this can cause a long loop with I/O if i_size of the directory's inode is also corrupted, causing the log writer thread to wait and hang, as reported by syzbot. Fix these issues by making nilfs_empty_dir() immediately return a false value (0) if it fails to get a directory folio/page.

Affected products and versions

linux linux_kernel
linux linux_kernel · 2.6.30 → 4.19.317
linux linux_kernel · 4.20 → 5.4.279
linux linux_kernel · 5.11 → 5.15.162
linux linux_kernel · 5.16 → 6.1.95
linux linux_kernel · 5.5 → 5.10.221
linux linux_kernel · 6.2 → 6.6.35
linux linux_kernel · 6.7 → 6.9.5

Analysis

This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.

References