drm/amdkfd: Fix a race condition of vram buffer unref in svm code
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".
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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".
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- 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://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52825.json
- https://nvd.nist.gov/vuln/detail/CVE-2023-52825