drm/panthor: Recover from panthor_gpu_flush_caches() failures

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Summary

CVECVE-2025-71314
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-03 18:16:19 UTC
Updated2026-06-05 20:51:20 UTC
DescriptionIn 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

Risk And Classification

EPSS: 0.000180000 probability, percentile 0.047890000 (date 2026-06-05)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 5cd894e258c4b0b92b9b475309cea244e590d194 8ec4f1b14a6147db07d6e51aa1d6bcc799649847 git Not specified
CNA Linux Linux affected 5cd894e258c4b0b92b9b475309cea244e590d194 57753f2c64c033a21a7400b3a2192db1cd6c890e git Not specified
CNA Linux Linux affected 5cd894e258c4b0b92b9b475309cea244e590d194 2c899c6026fc9d39286735b30c4d8550d4ea075b git Not specified
CNA Linux Linux affected 5cd894e258c4b0b92b9b475309cea244e590d194 3c0a60195b37af83bbbaf223cd3a78945bace49e git Not specified
CNA Linux Linux affected 6.10 Not specified
CNA Linux Linux unaffected 6.10 semver Not specified
CNA Linux Linux unaffected 6.12.75 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.14 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.4 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/57753f2c64c033a21a7400b3a2192db1cd6c890e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/2c899c6026fc9d39286735b30c4d8550d4ea075b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/3c0a60195b37af83bbbaf223cd3a78945bace49e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/8ec4f1b14a6147db07d6e51aa1d6bcc799649847 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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