Detections
Analytics
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.
References
https://git.kernel.org/stable/c/ebc0e91ba76dc6544fff9f5b66408b1982806a00
https://git.kernel.org/stable/c/d418313bd8f55c079a7da12651951b489a638ac1
https://git.kernel.org/stable/c/cf6b45ea7a8df0f61bded1dc4a8561ac6ad143d2
https://git.kernel.org/stable/c/899ee2c3829c5ac14bfc7d3c4a5846c0b709b78f
https://git.kernel.org/stable/c/23a19655fb56f241e592041156dfb1c6d04da644