CVE-2023-52825
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.18%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public 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".
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.18% probability · 8th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-362
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/50f35a907c4f9ed431fd3dbb8b871ef1cbb0718ePatch
- https://git.kernel.org/stable/c/709c348261618da7ed89d6c303e2ceb9e453ba74Patch
- https://git.kernel.org/stable/c/7d43cdd22cd81a2b079e864c4321b9aba4c6af34Patch
- https://git.kernel.org/stable/c/c772eacbd6d0845fc922af8716bb9d29ae27b8cfPatch
- https://git.kernel.org/stable/c/fc0210720127cc6302e6d6f3de48f49c3fcf5659Patch
- https://git.kernel.org/stable/c/50f35a907c4f9ed431fd3dbb8b871ef1cbb0718ePatch
- https://git.kernel.org/stable/c/709c348261618da7ed89d6c303e2ceb9e453ba74Patch
- https://git.kernel.org/stable/c/7d43cdd22cd81a2b079e864c4321b9aba4c6af34Patch
- https://git.kernel.org/stable/c/c772eacbd6d0845fc922af8716bb9d29ae27b8cfPatch
- https://git.kernel.org/stable/c/fc0210720127cc6302e6d6f3de48f49c3fcf5659Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.