What’s Vulnerable › Vulnerabilities

CVE-2026-31743: nvmem: zynqmp_nvmem: Fix buffer size in DMA and memcpy

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-01 · updated 2026-06-17
• Weakness: CWE-787

Description

In the Linux kernel, the following vulnerability has been resolved: nvmem: zynqmp_nvmem: Fix buffer size in DMA and memcpy Buffer size used in dma allocation and memcpy is wrong. It can lead to undersized DMA buffer access and possible memory corruption. use correct buffer size in dma_alloc_coherent and memcpy.

Affected products

• Linux kernel: from 6.9 before 6.12.81; from 6.13 before 6.18.22; from 6.19 before 6.19.12; 7.0-rc1, 7.0-rc2, 7.0-rc3, 7.0-rc4, 7.0-rc5, 7.0-rc6 — fixed in 6.12.81, 6.18.22, 6.19.12

How to fix

Upgrade to a fixed version: Linux kernel 6.12.81, 6.18.22, 6.19.12. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/2f6e5b9964d0a63a5ba84fca2642876afb70a662
• https://git.kernel.org/stable/c/6c01e7f11f5e5f22285d19510a9643e2506e13c3
• https://git.kernel.org/stable/c/784ed4abded1ca4b525fa4cade8b02f8c5d2a087
• https://git.kernel.org/stable/c/f9b88613ff402aa6fe8fd020573cb95867ae947e

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