CVE-2024-43854
Medium
Description
In the Linux kernel, the following vulnerability has been resolved: block: initialize integrity buffer to zero before writing it to media Metadata added by bio_integrity_prep is using plain kmalloc, which leads to random kernel memory being written media. For PI metadata this is limited to the app tag that isn't used by kernel generated metadata, but for non-PI metadata the entire buffer leaks kernel memory. Fix this by adding the __GFP_ZERO flag to allocations for writes.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedAug 17, 2024
First seenAug 17, 2024
How to fix
Update
- linux linux_kernel5.15.165, 6.1.103, 6.6.44, 6.10.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 2.6.27 ≤ v < 5.15.165, 5.16 ≤ v < 6.1.103, 6.2 ≤ v < 6.6.44, 6.7 ≤ v < 6.10.3 | 5.15.165, 6.1.103, 6.6.44, 6.10.3 |
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