What’s Vulnerable › Vulnerabilities

CVE-2025-21780: drm/amdgpu: avoid buffer overflow attach in smu_sys_set_pp_table()

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-02-27 · updated 2026-10-15
• Weakness: CWE-120

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: avoid buffer overflow attach in smu_sys_set_pp_table() It malicious user provides a small pptable through sysfs and then a bigger pptable, it may cause buffer overflow attack in function smu_sys_set_pp_table().

Affected products

• Linux kernel: before 6.1.129; from 6.2 before 6.6.79; from 6.7 before 6.12.16; from 6.13 before 6.13.4; 6.14-rc1, 6.14-rc2 — fixed in 6.1.129, 6.12.16, 6.13.4, 6.6.79

How to fix

Upgrade to a fixed version: Linux kernel 6.1.129, 6.12.16, 6.13.4, 6.6.79. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/1abb2648698bf10783d2236a6b4a7ca5e8021699
• https://git.kernel.org/stable/c/231075c5a8ea54f34b7c4794687baa980814e6de
• https://git.kernel.org/stable/c/2498d2db1d35e88a2060ea191ae75dce853dd084
• https://git.kernel.org/stable/c/3484ea33157bc7334f57e64826ec5a4bf992151a
• https://git.kernel.org/stable/c/e43a8b9c4d700ffec819c5043a48769b3e7d9cab
• https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html
• https://cert-portal.siemens.com/productcert/html/ssa-019113.html
• https://cert-portal.siemens.com/productcert/html/ssa-457936.html

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