CVE-2023-52825

drm/amdkfd: Fix a race condition of vram buffer unref in svm code

HIGH

7.8

CVSS Score

Published: May 21, 2024 at 03:31 PM UTC

Updated: August 5, 2026 at 10:24 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

HIGH7.8

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

v < 5.15.1405.14 ≤ v < 5.15.1405.14 ≤ v < 6.1.645.14 ≤ v < 6.5.135.14 ≤ v < 6.6.35.14 ≤ v < 6.75.16 ≤ v < 6.1.646.2 ≤ v < 6.5.136.6 ≤ v < 6.6.35.14e49fe4040a10c1cd3b215c511f658d15aa7c8be9

Vendor states this is fixed in 50f35a907c4f9ed431fd3dbb8b871ef1cbb0718e (fixed)

Vendor states this is fixed in 709c348261618da7ed89d6c303e2ceb9e453ba74 (fixed)

Vendor states this is fixed in 7d43cdd22cd81a2b079e864c4321b9aba4c6af34 (fixed)

Vendor states this is fixed in c772eacbd6d0845fc922af8716bb9d29ae27b8cf (fixed)

Vendor states this is fixed in fc0210720127cc6302e6d6f3de48f49c3fcf5659 (fixed)

Vendor states this is fixed in 5.14 (unaffected)

Vendor states this is fixed in 5.15.140 (unaffected)

Vendor states this is fixed in 6.1.64 (unaffected)

Vendor states this is fixed in 6.5.13 (unaffected)

Vendor states this is fixed in 6.6.3 (unaffected)

Vendor states this is fixed in 6.7 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references