CVE-2026-72475
Received Received - Intake

Memory Leak in Linux Kernel DMA Engine

Publication date: 2026-08-15

Last updated on: 2026-08-15

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: dmaengine: dma-axi-dmac: Properly free struct axi_dmac_desc Use axi_dmac_free_desc() to free fully the descriptor at fail path when call axi_dmac_alloc_desc() in axi_dmac_prep_peripheral_dma_vec().

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Meta Information

Published
2026-08-15
Last Modified
2026-08-15
Generated
2026-08-15
AI Q&A
2026-08-15
EPSS Evaluated
N/A
NVD
CVE-2026-72475
EUVD
EUVD-2026-59374

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
linux_kernel dmaengine *

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Exploitability

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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability in the Linux kernel involves improper memory management in the dma-axi-dmac driver. When preparing a peripheral DMA transfer, the code fails to properly free a descriptor structure if an allocation error occurs. This could lead to memory leaks or potential use-after-free issues in the DMA engine.

Impact Analysis

If exploited, this flaw could cause system instability, crashes, or unexpected behavior in systems using the affected DMA engine. It may also lead to privilege escalation if an attacker can trigger the memory management issue. Systems relying on DMA for critical operations could experience performance degradation or data corruption.

Mitigation Strategies

Update the Linux kernel to a patched version that includes the fix for CVE-2026-72475. This vulnerability is specific to the dma-axi-dmac driver, so ensure your kernel version has the corrected axi_dmac_free_desc() implementation.

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