CVE-2025-71314 — linux / linux_kernel
In the Linux kernel, the following vulnerability has been resolved:
drm/panthor: Recover from panthor_gpu_flush_caches() failures
We have seen a few cases where the whole memory subsystem is blocked and flush operations never complete. When that happens, we want to:
- schedule a reset, so we can recover from this situation
- in the reset path, we need to reset the pending_reqs so we can send new commands after the reset
- if more panthor_gpu_flush_caches() operations are queued after the timeout, we skip them and return -EIO directly to avoid needless waits (the memory block won't miraculously work again)
Note that we drop the WARN_ON()s because these hangs can be triggered with buggy GPU jobs created by the UMD, and there's no way we can prevent it. We do keep the error messages though.
v2:
- New patch
v3:
- Collect R-b
- Explicitly mention the fact we dropped the WARN_ON()s in the commit message
v4:
- No changes
| Software | Affected versions |
|---|---|
| linux / linux_kernel | >= 6.10, < 6.12.75 |
| linux / linux_kernel | >= 6.13, < 6.18.14 |
| linux / linux_kernel | >= 6.19, < 6.19.4 |
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A security vulnerability is a weakness in software, hardware, or configuration that can be exploited to compromise confidentiality, integrity, or availability. Many vulnerabilities are tracked as CVEs (Common Vulnerabilities and Exposures), which provide a standardized identifier so teams can coordinate patching, mitigation, and risk assessment across tools and vendors.
CVSS (Common Vulnerability Scoring System) estimates technical severity, but it doesn't automatically equal business risk. Prioritize using context like internet exposure, affected asset criticality, known exploitation (proof-of-concept or in-the-wild), and whether compensating controls exist. A "Medium" CVSS on an exposed, production system can be more urgent than a "Critical" on an isolated, non-production host.
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Recurring findings usually come from incomplete Asset Discovery, inconsistent patch management, inherited images, and configuration drift. In modern environments, you also need to watch the software supply chain: dependencies, containers, build pipelines, and third-party services can reintroduce the same weakness even after you patch a single host. Unknown or unmanaged assets (often called Shadow IT) are a common reason the same issues resurface.
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