CVE-2024-43881: linux kernel Resource Exposure — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: change DMA direction while mapping reinjected packets For fragmented packets, ath12k reassembles each fragment as a normal packet and then reinjects it into HW ring. In this case, the DMA direction should be DMA_TO_DEVICE, not DMA_FROM_DEVICE. Otherwise, an invalid payload may be reinjected into the HW and subsequently delivered to the host. Given that arbitrary memory can be allocated to the skb buffer, knowledge about the data contained in the reinjected buffer is lacking. Consequently, there’s a risk of private information being leaked. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.1.1-00209-QCAHKSWPL_SILICONZ-1

Is your site exposed to CVE-2024-43881?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

7.1

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Weakness Type (CWE)

CWE-668 CWE-668

Affected Products

Vendor	Product	Versions
linux	linux_kernel	6.3 — 6.6.44
linux	linux_kernel	6.7 — 6.10.3

References

Advisories & Patches

https://git.kernel.org/stable/c/33322e3ef07409278a18c6919c448e369d66a18e https://git.kernel.org/stable/c/6925320fcd40d8042d32bf4ede8248e7a5315c3b https://git.kernel.org/stable/c/e99d9b16ff153de9540073239d24adc3b0a3a997

Frequently Asked Questions

What is CVE-2024-43881? +

In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: change DMA direction while mapping reinjected packets For fragmented packets, ath12k reassembles each fragment as a normal packet and then reinjects it into HW ring. In this case, the DMA direction should be DMA_TO_DEVICE, not DMA_FROM_DEVICE. Otherwise, an invalid payload may be reinjected into the HW and subsequently delivered to the host. Given that arbitrary memory can be allocated to the skb buffer, knowledge about the data contained in the reinjected buffer is lacking. Consequently, there’s a risk of private information being leaked. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.1.1-00209-QCAHKSWPL_SILICONZ-1 It has a CVSS v3.1 base score of 7.1 (HIGH).

How severe is CVE-2024-43881? +

CVE-2024-43881 has a CVSS v3.1 score of 7.1 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-43881? +

CVE-2024-43881 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-43881? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2026-53648

FOSSBilling is a free, open-source billing and client management system. Prior to version 0.8.1, downloadable product files are stored using …

CVE-2025-34119

A remote file disclosure vulnerability exists in EasyCafe Server 2.2.14, exploitable by unauthenticated remote attackers via TCP port 831. The …

CVE-2025-32428

Jupyter Remote Desktop Proxy allows you to run a Linux Desktop on a JupyterHub. jupyter-remote-desktop-proxy was meant to rely on …

CVE-2025-3651

Improper Verification of Source of a Communication Channel in Work Desktop for Mac versions 10.8.1.46 and earlier allows attackers to …

CVE-2025-6788

A CWE-668: Exposure of Resource to Wrong Sphere vulnerability exists that exposes TGML diagram resources to the wrong control sphere, …

CVE-2025-54502

Incorrect use of boot service in the AMD Platform Configuration Blob (APCB) SMM driver could allow a privileged attacker with …

CVE-2024-43881