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Vulnerability record · CVE-2026-31743 · published 1 May 2026

CVE-2026-31743: Linux kernel out-of-bounds write vulnerability

Linux · Linux Kernel

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.

7.8 CVSS 3.1 High EPSS 0.18% · top 93.8% CWE-787 · Out-of-bounds write
7.8CVSS 3.1 base score
0.18%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Source: NIST National Vulnerability Database (record CVE-2026-31743), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.