What’s Vulnerable › Vulnerabilities

CVE-2024-46716: dmaengine: altera-msgdma: properly free descriptor in msgdma_free_descriptor

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-09-18 · updated 2026-08-04
• Weakness: CWE-416

Description

In the Linux kernel, the following vulnerability has been resolved: dmaengine: altera-msgdma: properly free descriptor in msgdma_free_descriptor Remove list_del call in msgdma_chan_desc_cleanup, this should be the role of msgdma_free_descriptor. In consequence replace list_add_tail with list_move_tail in msgdma_free_descriptor. This fixes the path: msgdma_free_chan_resources -> msgdma_free_descriptors -> msgdma_free_desc_list -> msgdma_free_descriptor which does not correctly free the descriptors as first nodes were not removed from the list.

Affected products

• Linux kernel: before 6.1.109; from 6.2 before 6.6.50; from 6.7 before 6.10.9 — fixed in 6.1.109, 6.10.9, 6.6.50

How to fix

Upgrade to a fixed version: Linux kernel 6.1.109, 6.10.9, 6.6.50. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/20bf2920a869f9dbda0ef8c94c87d1901a64a716
• https://git.kernel.org/stable/c/54e4ada1a4206f878e345ae01cf37347d803d1b1
• https://git.kernel.org/stable/c/a3480e59fdbe5585d2d1eff0bed7671583acf725
• https://git.kernel.org/stable/c/db67686676c7becc1910bf1d6d51505876821863
• https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

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