CVE & CISA-KEV Catalog

CVE-2025-40276

UNSCORED
NVD

Description

In the Linux kernel, the following vulnerability has been resolved: drm/panthor: Flush shmem writes before mapping buffers CPU-uncached The shmem layer zeroes out the new pages using cached mappings, and if we don't CPU-flush we might leave dirty cachelines behind, leading to potential data leaks and/or asynchronous buffer corruption when dirty cachelines are evicted.

How to fix

Remediation Available
linuxDebian
Fixed in:6.12.69-1CVE-2025-40276
Fixed in:6.17.9-1CVE-2025-40276
linuxUbuntu
Fixed in:6.17.0-14.14USN-8029-1
linux-awsUbuntu
Fixed in:6.17.0-1007.7USN-8029-2
linux-azureUbuntu
Fixed in:6.17.0-1008.8USN-8029-3
linux-gcpUbuntu
Fixed in:6.17.0-1007.7USN-8030-1
linux-image-6.17.0-1006-realtimeUbuntu
Fixed in:6.17.0-1006.7USN-8029-1
linux-image-6.17.0-1007-awsUbuntu
Fixed in:6.17.0-1007.7USN-8029-2
linux-image-6.17.0-1007-aws-64kUbuntu
Fixed in:6.17.0-1007.7USN-8029-2
linux-image-6.17.0-1007-gcpUbuntu
Fixed in:6.17.0-1007.7USN-8030-1
linux-image-6.17.0-1007-gcp-64kUbuntu
Fixed in:6.17.0-1007.7USN-8030-1
linux-image-6.17.0-1007-oracleUbuntu
Fixed in:6.17.0-1007.7USN-8029-2
linux-image-6.17.0-1007-oracle-64kUbuntu
Fixed in:6.17.0-1007.7USN-8029-2
linux-image-6.17.0-1008-azureUbuntu
Fixed in:6.17.0-1008.8USN-8029-3
linux-image-6.17.0-1008-raspiUbuntu
Fixed in:6.17.0-1008.8USN-8029-1
linux-image-6.17.0-1011-oemUbuntu
Fixed in:6.17.0-1011.11USN-8048-1
linux-image-6.17.0-14-genericUbuntu
Fixed in:6.17.0-14.14USN-8029-1
linux-image-6.17.0-14-generic-64kUbuntu
Fixed in:6.17.0-14.14USN-8029-1
linux-image-awsUbuntu
Fixed in:6.17.0-1007.7USN-8029-2
linux-image-aws-6.17Ubuntu
Fixed in:6.17.0-1007.7USN-8029-2
linux-image-aws-64kUbuntu
Fixed in:6.17.0-1007.7USN-8029-2
linux-image-aws-64k-6.17Ubuntu
Fixed in:6.17.0-1007.7USN-8029-2
linux-image-azureUbuntu
Fixed in:6.17.0-1008.8USN-8029-3
linux-image-azure-6.17Ubuntu
Fixed in:6.17.0-1008.8USN-8029-3
linux-image-gcpUbuntu
Fixed in:6.17.0-1007.7USN-8030-1
linux-image-gcp-6.17Ubuntu
Fixed in:6.17.0-1007.7USN-8030-1
linux-image-gcp-64kUbuntu
Fixed in:6.17.0-1007.7USN-8030-1
linux-image-gcp-64k-6.17Ubuntu
Fixed in:6.17.0-1007.7USN-8030-1
linux-image-genericUbuntu
Fixed in:6.17.0-14.14USN-8029-1
linux-image-generic-6.17Ubuntu
Fixed in:6.17.0-14.14USN-8029-1
linux-image-generic-64kUbuntu
Fixed in:6.17.0-14.14USN-8029-1
linux-image-generic-64k-6.17Ubuntu
Fixed in:6.17.0-14.14USN-8029-1
linux-image-oem-6.17Ubuntu
Fixed in:6.17.0-1011.11USN-8048-1
linux-image-oracleUbuntu
Fixed in:6.17.0-1007.7USN-8029-2
linux-image-oracle-6.17Ubuntu
Fixed in:6.17.0-1007.7USN-8029-2
linux-image-oracle-64kUbuntu
Fixed in:6.17.0-1007.7USN-8029-2
linux-image-oracle-64k-6.17Ubuntu
Fixed in:6.17.0-1007.7USN-8029-2
linux-image-raspiUbuntu
Fixed in:6.17.0-1008.8USN-8029-1
linux-image-raspi-6.17Ubuntu
Fixed in:6.17.0-1008.8USN-8029-1
linux-image-realtimeUbuntu
Fixed in:6.17.0-1006.7USN-8029-1
linux-image-realtime-6.17Ubuntu
Fixed in:6.17.0-1006.7USN-8029-1
linux-image-virtualUbuntu
Fixed in:6.17.0-14.14USN-8029-1
linux-image-virtual-6.17Ubuntu
Fixed in:6.17.0-14.14USN-8029-1
linux-oem-6.17Ubuntu
Fixed in:6.17.0-1011.11USN-8048-1
linux-oracleUbuntu
Fixed in:6.17.0-1007.7USN-8029-2
linux-raspiUbuntu
Fixed in:6.17.0-1008.8USN-8029-1
linux-realtimeUbuntu
Fixed in:6.17.0-1006.7USN-8029-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3.1 Vector

No CVSS vector data available.

Exploit Intelligence

0.16%probability of exploitation in 30 days
6thpercentile

Low risk: more likely to be exploited than 6% of all known CVEs.

References

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CVE-2025-40276 severity badge

Markdown

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HTML

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-01-08.