CVE-2024-35859 block: fix module reference leakage from bdev_open_by_dev error path

What is CVE-2024-35859?

CVE-2024-35859 is a medium-severity vulnerability in Linux kernel, published on 17 May 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In the Linux kernel, the following vulnerability has been resolved:

block: fix module reference leakage from bdev_open_by_dev error path

At the time bdev_may_open() is called, module reference is grabbed already, hence module reference should be released if bdev_may_open() failed.

This problem is found by code review.

Which versions are affected by CVE-2024-35859?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-35859?

Apply the vendor's patch.

Is CVE-2024-35859 being exploited?

There is no known exploitation of CVE-2024-35859 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BELL-CVE-2024-35859, DEBIAN-CVE-2024-35859, GHSA-76r5-84qj-h2gj, UBUNTU-CVE-2024-35859.