What’s Vulnerable › Vulnerabilities

CVE-2026-46197: drm/amdkfd: validate SVM ioctl nattr against buffer size

• 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: 2026-05-28 · updated 2026-10-19
• Weakness: CWE-787

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: validate SVM ioctl nattr against buffer size Validate nattr field against the buffer size, preventing out-of-bounds buffer access via user-controlled attribute count. (cherry picked from commit 5eca8bfdfa456c3304ca77523718fe24254c172f)

Affected products

• Linux kernel: from 5.14 before 5.15.209; from 5.16 before 6.1.175; from 6.2 before 6.6.140; from 6.7 before 6.12.90; from 6.13 before 6.18.32; from 6.19 before 7.0.9 — fixed in 5.15.209, 6.1.175, 6.12.90, 6.18.32, 6.6.140, 7.0.9

How to fix

Upgrade to a fixed version: Linux kernel 5.15.209, 6.1.175, 6.12.90, 6.18.32. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/045e0ff208f0838a246c10204105126611b267a1
• https://git.kernel.org/stable/c/6abd3a4417cb73a7d0db7e25bf11fae1074bdba3
• https://git.kernel.org/stable/c/91c6dc5a41695d02dfc6299f106ac38a6c493e52
• https://git.kernel.org/stable/c/ccd060b5c7cc75ae7e211c250b97c5b6272e7efc
• https://git.kernel.org/stable/c/daa8bc5f83814b55b71d2b5b3a090d57a5219c21
• https://git.kernel.org/stable/c/db9530a9873a7c85d2266a922589ebcf427fa631
• https://git.kernel.org/stable/c/fb07a0c9c8419164812e07274947f11b1d92dd61

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