What’s Vulnerable › Vulnerabilities

CVE-2025-71300: Revert "arm64: zynqmp: Add an OP-TEE node to the device tree"

• Severity: medium (CVSS 5.5 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: 2026-05-08 · updated 2026-10-14

Description

In the Linux kernel, the following vulnerability has been resolved: Revert "arm64: zynqmp: Add an OP-TEE node to the device tree" This reverts commit 06d22ed6b6635b17551f386b50bb5aaff9b75fbe. OP-TEE logic in U-Boot automatically injects a reserved-memory node along with optee firmware node to kernel device tree. The injection logic is dependent on that there is no manually defined optee node. Having the node in zynqmp.dtsi effectively breaks OP-TEE's insertion of the reserved-memory node, causing memory access violations during runtime.

Affected products

• Linux kernel: from 6.9 before 6.12.75; from 6.13 before 6.18.16; from 6.19 before 6.19.6 — fixed in 6.12.75, 6.18.16, 6.19.6

How to fix

Upgrade to a fixed version: Linux kernel 6.12.75, 6.18.16, 6.19.6. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/2a833c730d4e8d1cc10953270ce0f3a156145d81
• https://git.kernel.org/stable/c/3983ef126e439900bbf419724a9759863c146660
• https://git.kernel.org/stable/c/c197179990124f991fca220d97fac56779a02c6d
• https://git.kernel.org/stable/c/eece81eeda10eb42c687399fb5aa69977ae15664

Get alerted when CVE-2025-71300 or the next vulnerability affects your stack