Tracker / CVE-2024-43828
CVE-2024-43828
Medium 5.5
In the Linux kernel, the following vulnerability has been resolved: ext4: fix infinite loop when replaying fast_commit When doing fast_commit replay an infinite loop may occur due to an uninitialized extent_status struct. ext4_ext_determine_insert_hole() does not detect the replay and calls ext4_es_find_extent_range(), which will return immediately without initializing the 'es' variable. Because 'es' contains garbage, an integer overflow may happen causing an infinite loop in this function, easily reproducible using fstest generic/039. This commit fixes this issue by unconditionally initializing the structure in function ext4_es_find_extent_range(). Thanks to Zhang Yi, for figuring out the real problem!
Affected products and versions
| linux | linux_kernel · 5.10 → 5.10.224 |
|---|---|
| linux | linux_kernel · 5.11 → 5.15.165 |
| linux | linux_kernel · 5.16 → 6.1.103 |
| linux | linux_kernel · 6.2 → 6.6.44 |
| linux | linux_kernel · 6.7 → 6.10.3 |
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.