CVE-2024-41077

null_blk: fix validation of block size

Description

In the Linux kernel, the following vulnerability has been resolved: null_blk: fix validation of block size Block size should be between 512 and PAGE_SIZE and be a power of 2. The current check does not validate this, so update the check. Without this patch, null_blk would Oops due to a null pointer deref when loaded with bs=1536 [1]. [axboe: remove unnecessary braces and != 0 check]

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.07%
Affected: Linux Linux
Affected: Linux Linux
Published at:
Updated at:

References

Link Tags
https://git.kernel.org/stable/c/9625afe1dd4a158a14bb50f81af9e2dac634c0b1 patch
https://git.kernel.org/stable/c/9b873bdaae64bddade9d8c6df23c8a31948d47d0 patch
https://git.kernel.org/stable/c/2772ed2fc075eef7df3789906fc9dae01e4e132e patch
https://git.kernel.org/stable/c/08f03186b96e25e3154916a2e70732557c770ea7 patch
https://git.kernel.org/stable/c/f92409a9da02f27d05d713bff5f865e386cef9b3 patch
https://git.kernel.org/stable/c/c462ecd659b5fce731f1d592285832fd6ad54053 patch

Frequently Asked Questions

What is the severity of CVE-2024-41077?
CVE-2024-41077 has been scored as a medium severity vulnerability.
How to fix CVE-2024-41077?
To fix CVE-2024-41077, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-41077 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-41077 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-41077?
CVE-2024-41077 affects Linux Linux, Linux Linux.
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