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CVE-2024-42071

7.8 · HIGH
Published Jul 29, 2024 linux CWE-834 EPSS 0.22% (12th pctl)

Overview

CVE-2024-42071 is a high-severity vulnerability affecting linux linux_kernel. It was published on July 29, 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:

ionic: use dev_consume_skb_any outside of napi

If we're not in a NAPI softirq context, we need to be careful

about how we call napi_consume_skb(), specifically we need to

call it with budget==0 to signal to it that we're not in a

safe context.

This was found while running some configuration stress testing

of traffic and a change queue config loop running, and this

curious note popped out:

[ 4371.402645] BUG: using smp_processor_id() in preemptible [00000000] code: ethtool/20545

[ 4371.402897] caller is napi_skb_cache_put+0x16/0x80

[ 4371.403120] CPU: 25 PID: 20545 Comm: ethtool Kdump: loaded Tainted: G OE 6.10.0-rc3-netnext+ #8

[ 4371.403302] Hardware name: HPE ProLiant DL360 Gen10/ProLiant DL360 Gen10, BIOS U32 01/23/2021

[ 4371.403460] Call Trace:

[ 4371.403613] <TASK>

[ 4371.403758] dump_stack_lvl+0x4f/0x70

[ 4371.403904] check_preemption_disabled+0xc1/0xe0

[ 4371.404051] napi_skb_cache_put+0x

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 >= 0, < 6.9 Affected

Frequently Asked Questions

What is CVE-2024-42071?

CVE-2024-42071 is a high-severity vulnerability affecting linux linux_kernel. It was published on July 29, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2024-42071?

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-2024-42071?

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.

How can CyberStrike help with CVE-2024-42071?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-42071 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.