Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2024-26901

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: do_sys_name_to_handle(): use kzalloc() to fix kernel-infoleak syzbot identified a kernel information leak vulnerability in do_s…

Published Apr 17, 2024CWE-908EPSS 0.83%

Overview

CVE-2024-26901 is a medium-severity vulnerability. It was published on April 17, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

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

do_sys_name_to_handle(): use kzalloc() to fix kernel-infoleak

syzbot identified a kernel information leak vulnerability in

do_sys_name_to_handle() and issued the following report [1].

[1]

"BUG: KMSAN: kernel-infoleak in instrument_copy_to_user include/linux/instrumented.h:114 [inline]

BUG: KMSAN: kernel-infoleak in _copy_to_user+0xbc/0x100 lib/usercopy.c:40

instrument_copy_to_user include/linux/instrumented.h:114 [inline]

_copy_to_user+0xbc/0x100 lib/usercopy.c:40

copy_to_user include/linux/uaccess.h:191 [inline]

do_sys_name_to_handle fs/fhandle.c:73 [inline]

__do_sys_name_to_handle_at fs/fhandle.c:112 [inline]

__se_sys_name_to_handle_at+0x949/0xb10 fs/fhandle.c:94

__x64_sys_name_to_handle_at+0xe4/0x140 fs/fhandle.c:94

...

Uninit was created at:

slab_post_alloc_hook+0x129/0xa70 mm/slab.h:768

slab_alloc_node mm/slub.c:3478 [inline]

__kmem_cache_alloc_node+0x5c9/0x970 mm/slub.c:3517

__do_kmalloc_node mm/s

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/3948abaa4e2be938ccdfc289385a27342fb13d43Refgit.kernel.org/stable/c/423b6bdf19bbc5e1f7e7461045099917378f7e71Refgit.kernel.org/stable/c/4bac28f441e3cc9d3f1a84c8d023228a68d8a7c1Refgit.kernel.org/stable/c/772a7def9868091da3bcb0d6c6ff9f0c03d7fa8bRefgit.kernel.org/stable/c/bf9ec1b24ab4e94345aa1c60811dd329f069c38bRefgit.kernel.org/stable/c/c1362eae861db28b1608b9dc23e49634fe87b63bRefgit.kernel.org/stable/c/cba138f1ef37ec6f961baeab62f312dedc7cf730Refgit.kernel.org/stable/c/cde76b3af247f615447bcfecf610bb76c3529126Refgit.kernel.org/stable/c/e6450d5e46a737a008b4885aa223486113bf0ad6Refgit.kernel.org/stable/c/3948abaa4e2be938ccdfc289385a27342fb13d43

How CyberStrike helps

Frequently asked questions

What is CVE-2024-26901?

CVE-2024-26901 is a medium-severity vulnerability. It was published on April 17, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-26901?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-26901?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2024-26901?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-26901 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

Related MEDIUM CVEs from 2024

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999