What’s Vulnerable › Vulnerabilities

CVE-2023-52825: drm/amdkfd: Fix a race condition of vram buffer unref in svm code

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-05-21 · updated 2026-08-04
• Weakness: CWE-362

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Fix a race condition of vram buffer unref in svm code prange->svm_bo unref can happen in both mmu callback and a callback after migrate to system ram. Both are async call in different tasks. Sync svm_bo unref operation to avoid random "use-after-free".

Affected products

• Linux kernel: before 5.15.140; from 5.16 before 6.1.64; from 6.2 before 6.5.13; from 6.6 before 6.6.3 — fixed in 5.15.140, 6.1.64, 6.5.13, 6.6.3

How to fix

Upgrade to a fixed version: Linux kernel 5.15.140, 6.1.64, 6.5.13, 6.6.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/50f35a907c4f9ed431fd3dbb8b871ef1cbb0718e
• https://git.kernel.org/stable/c/709c348261618da7ed89d6c303e2ceb9e453ba74
• https://git.kernel.org/stable/c/7d43cdd22cd81a2b079e864c4321b9aba4c6af34
• https://git.kernel.org/stable/c/c772eacbd6d0845fc922af8716bb9d29ae27b8cf
• https://git.kernel.org/stable/c/fc0210720127cc6302e6d6f3de48f49c3fcf5659
• https://git.kernel.org/stable/c/50f35a907c4f9ed431fd3dbb8b871ef1cbb0718e
• https://git.kernel.org/stable/c/709c348261618da7ed89d6c303e2ceb9e453ba74
• https://git.kernel.org/stable/c/7d43cdd22cd81a2b079e864c4321b9aba4c6af34
• https://git.kernel.org/stable/c/c772eacbd6d0845fc922af8716bb9d29ae27b8cf
• https://git.kernel.org/stable/c/fc0210720127cc6302e6d6f3de48f49c3fcf5659

Get alerted when CVE-2023-52825 or the next vulnerability affects your stack