Go to homepageCyberStrike

Menu

Star on GitHub · 3.3k
Sign inDownload

CVE-2024-56693

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: brd: defer automatic disk creation until module initialization succeeds My colleague Wupeng found the following problems during…

Published Dec 28, 2024CWE-416EPSS 0.24%

Overview

CVE-2024-56693 is a high-severity vulnerability. It was published on December 28, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. 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:

brd: defer automatic disk creation until module initialization succeeds

My colleague Wupeng found the following problems during fault injection:

BUG: unable to handle page fault for address: fffffbfff809d073

PGD 6e648067 P4D 123ec8067 PUD 123ec4067 PMD 100e38067 PTE 0

Oops: Oops: 0000 [#1] PREEMPT SMP KASAN NOPTI

CPU: 5 UID: 0 PID: 755 Comm: modprobe Not tainted 6.12.0-rc3+ #17

Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS

1.16.1-2.fc37 04/01/2014

RIP: 0010:__asan_load8+0x4c/0xa0

...

Call Trace:

<TASK>

blkdev_put_whole+0x41/0x70

bdev_release+0x1a3/0x250

blkdev_release+0x11/0x20

__fput+0x1d7/0x4a0

task_work_run+0xfc/0x180

syscall_exit_to_user_mode+0x1de/0x1f0

do_syscall_64+0x6b/0x170

entry_SYSCALL_64_after_hwframe+0x76/0x7e

loop_init() is calling loop_add() after __register_blkdev() succeeds and

is ignoring disk_add() failure from loop_add(), for loop_add() failure

is not fatal and successfull

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/259bf925583ec9e3781df778cadf00594095090dRefgit.kernel.org/stable/c/410896624db639500f24f46478b4bfa05c76bf56Refgit.kernel.org/stable/c/41219c147df8bbd6591f59af5d695fb6c9a1cbffRefgit.kernel.org/stable/c/63dfd728b30f79495dacc886127695a379805152Refgit.kernel.org/stable/c/826cc42adf44930a633d11a5993676d85ddb0842Refgit.kernel.org/stable/c/c0c2744cd2939ec5999c51dbaf2af16886548b7bReflists.debian.org/debian-lts-announce/2025/03/msg00001.html

How CyberStrike helps

Frequently asked questions

What is CVE-2024-56693?

CVE-2024-56693 is a high-severity vulnerability. It was published on December 28, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2024-56693?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-56693?

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-2024-56693?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-56693 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 HIGH CVEs from 2024

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999
LiveWatch live →