CVE-2024-35991

5.5 · MEDIUM

Published May 20, 2024 linux CWE-667 EPSS 0.16% (6th pctl) CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Overview

CVE-2024-35991 is a medium-severity vulnerability affecting linux linux_kernel. It was published on May 20, 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:

dmaengine: idxd: Convert spinlock to mutex to lock evl workqueue

drain_workqueue() cannot be called safely in a spinlocked context due to

possible task rescheduling. In the multi-task scenario, calling

queue_work() while drain_workqueue() will lead to a Call Trace as

pushing a work on a draining workqueue is not permitted in spinlocked

context.

Call Trace:

<TASK>

? __warn+0x7d/0x140

? __queue_work+0x2b2/0x440

? report_bug+0x1f8/0x200

? handle_bug+0x3c/0x70

? exc_invalid_op+0x18/0x70

? asm_exc_invalid_op+0x1a/0x20

? __queue_work+0x2b2/0x440

queue_work_on+0x28/0x30

idxd_misc_thread+0x303/0x5a0 [idxd]

? __schedule+0x369/0xb40

? __pfx_irq_thread_fn+0x10/0x10

? irq_thread+0xbc/0x1b0

irq_thread_fn+0x21/0x70

irq_thread+0x102/0x1b0

? preempt_count_add+0x74/0xa0

? __pfx_irq_thread_dtor+0x10/0x10

? __pfx_irq_thread+0x10/0x10

kthread+0x103/0x140

Remediation

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. 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.

Affected Products

Vendor	Product	Versions	Status
linux	linux_kernel	>= 6.4, < 6.6.30	Affected

References

Ref git.kernel.org/stable/c/758071a35d9f3ffd84ff12169d081412a2f5f098 Ref git.kernel.org/stable/c/c9b732a9f73eadc638abdcf0a6d39bc7a0c1af5f Ref git.kernel.org/stable/c/d5638de827cff0fce77007e426ec0ffdedf68a44 Ref git.kernel.org/stable/c/758071a35d9f3ffd84ff12169d081412a2f5f098 Ref git.kernel.org/stable/c/c9b732a9f73eadc638abdcf0a6d39bc7a0c1af5f Ref git.kernel.org/stable/c/d5638de827cff0fce77007e426ec0ffdedf68a44

Frequently Asked Questions

What is CVE-2024-35991?

CVE-2024-35991 is a medium-severity vulnerability affecting linux linux_kernel. It was published on May 20, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-35991?

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-2024-35991?

How can CyberStrike help with CVE-2024-35991?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-35991 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.

How CyberStrike Helps

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HackBrowser

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