Tracker / CVE-2022-50485
CVE-2022-50485
Medium 5.5
In the Linux kernel, the following vulnerability has been resolved: ext4: add EXT4_IGET_BAD flag to prevent unexpected bad inode There are many places that will get unhappy (and crash) when ext4_iget() returns a bad inode. However, if iget the boot loader inode, allows a bad inode to be returned, because the inode may not be initialized. This mechanism can be used to bypass some checks and cause panic. To solve this problem, we add a special iget flag EXT4_IGET_BAD. Only with this flag we'd be returning bad inode from ext4_iget(), otherwise we always return the error code if the inode is bad inode.(suggested by Jan Kara)
Affected products and versions
| linux | linux_kernel · 3.10 → 5.4.229 |
|---|---|
| linux | linux_kernel · 5.11 → 5.15.87 |
| linux | linux_kernel · 5.16 → 6.0.18 |
| linux | linux_kernel · 5.5 → 5.10.163 |
| linux | linux_kernel · 6.1 → 6.1.4 |
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.