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CVE-2022-48690

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: ice: Fix DMA mappings leak Fix leak, when user changes ring parameters.

Published May 3, 2024CWE-401EPSS 0.19%

Overview

CVE-2022-48690 is a medium-severity vulnerability. It was published on May 3, 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:

ice: Fix DMA mappings leak

Fix leak, when user changes ring parameters.

During reallocation of RX buffers, new DMA mappings are created for

those buffers. New buffers with different RX ring count should

substitute older ones, but those buffers were freed in ice_vsi_cfg_rxq

and reallocated again with ice_alloc_rx_buf. kfree on rx_buf caused

leak of already mapped DMA.

Reallocate ZC with xdp_buf struct, when BPF program loads. Reallocate

back to rx_buf, when BPF program unloads.

If BPF program is loaded/unloaded and XSK pools are created, reallocate

RX queues accordingly in XDP_SETUP_XSK_POOL handler.

Steps for reproduction:

while :

do

for ((i=0; i<=8160; i=i+32))

do

ethtool -G enp130s0f0 rx $i tx $i

sleep 0.5

ethtool -g enp130s0f0

done

done

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/07f40e9f0ff342eb3e97d5c544783b7cb641689cRefgit.kernel.org/stable/c/7e753eb675f0523207b184558638ee2eed6c9ac2Refgit.kernel.org/stable/c/07f40e9f0ff342eb3e97d5c544783b7cb641689cRefgit.kernel.org/stable/c/7e753eb675f0523207b184558638ee2eed6c9ac2

How CyberStrike helps

Frequently asked questions

What is CVE-2022-48690?

CVE-2022-48690 is a medium-severity vulnerability. It was published on May 3, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-48690?

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-2022-48690?

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-2022-48690?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-48690 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.

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