Is CVE-2025-40031 in the CISA KEV catalog?

No. CVE-2025-40031 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the EPSS score for CVE-2025-40031?

CVE-2025-40031 has an EPSS score of 0.19% (9th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-40031?

Upgrade linux on debian 13 to 6.12.57-1 or later. Fixes are available for 165 affected products.

CVE & CISA-KEV Catalog

CVE-2025-40031

UNSCORED

NVD

Description

In the Linux kernel, the following vulnerability has been resolved: tee: fix register_shm_helper() In register_shm_helper(), fix incorrect error handling for a call to iov_iter_extract_pages(). A case is missing for when iov_iter_extract_pages() only got some pages and return a number larger than 0, but not the requested amount. This fixes a possible NULL pointer dereference following a bad input from ioctl(TEE_IOC_SHM_REGISTER) where parts of the buffer isn't mapped.

How to fix

Remediation Available

linuxDebian

Fixed in:6.12.57-1CVE-2025-40031

Fixed in:6.17.6-1CVE-2025-40031

linuxUbuntu

Fixed in:6.8.0-106.106USN-8095-1

Fixed in:6.17.0-14.14USN-8029-1

linux-awsUbuntu

Fixed in:6.8.0-1050.53USN-8095-1

Fixed in:6.17.0-1007.7USN-8029-2

linux-aws-6.8Ubuntu

Fixed in:6.8.0-1050.53~22.04.1USN-8095-4

linux-aws-fipsUbuntu

Fixed in:6.8.0-1050.53+fips1USN-8095-2

linux-azureUbuntu

Fixed in:6.8.0-1051.57USN-8125-1

Fixed in:6.17.0-1008.8USN-8029-3

linux-azure-6.8Ubuntu

Fixed in:6.8.0-1051.57~22.04.1USN-8126-1

linux-azure-fipsUbuntu

Fixed in:6.8.0-1052.58+fips1USN-8165-1

linux-fipsUbuntu

Fixed in:6.8.0-106.106+fips1USN-8095-2

linux-gcpUbuntu

Fixed in:6.8.0-1052.55USN-8095-1

Fixed in:6.17.0-1007.7USN-8030-1

linux-gcp-6.8Ubuntu

Fixed in:6.8.0-1052.55~22.04.1USN-8095-1

linux-gcp-fipsUbuntu

Fixed in:6.8.0-1052.55+fips1USN-8095-2

linux-gkeUbuntu

Fixed in:6.8.0-1048.53USN-8095-1

linux-gkeopUbuntu

Fixed in:6.8.0-1035.38USN-8095-1

linux-hwe-6.8Ubuntu

Fixed in:6.8.0-106.106~22.04.1USN-8095-1

linux-ibmUbuntu

Fixed in:6.8.0-1049.49USN-8095-1

linux-ibm-6.8Ubuntu

Fixed in:6.8.0-1049.49~22.04.1USN-8095-1

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-6.8.0-1029-xilinxUbuntu

Fixed in:6.8.0-1029.30USN-8261-1

linux-image-6.8.0-1035-gkeopUbuntu

Fixed in:6.8.0-1035.38USN-8095-1

linux-image-6.8.0-1047-oracleUbuntu

Fixed in:6.8.0-1047.48~22.04.1USN-8095-1

Fixed in:6.8.0-1047.48USN-8095-1

linux-image-6.8.0-1047-oracle-64kUbuntu

Fixed in:6.8.0-1047.48~22.04.1USN-8095-1

Fixed in:6.8.0-1047.48USN-8095-1

linux-image-6.8.0-1048-gkeUbuntu

Fixed in:6.8.0-1048.53USN-8095-1

linux-image-6.8.0-1048-gke-64kUbuntu

Fixed in:6.8.0-1048.53USN-8095-1

linux-image-6.8.0-1049-ibmUbuntu

Fixed in:6.8.0-1049.49~22.04.1USN-8095-1

Fixed in:6.8.0-1049.49USN-8095-1

linux-image-6.8.0-1049-nvidiaUbuntu

Fixed in:6.8.0-1049.52~22.04.1USN-8100-1

Fixed in:6.8.0-1049.52USN-8100-1

linux-image-6.8.0-1049-nvidia-64kUbuntu

Fixed in:6.8.0-1049.52~22.04.1USN-8100-1

Fixed in:6.8.0-1049.52USN-8100-1

linux-image-6.8.0-1049-nvidia-lowlatencyUbuntu

Fixed in:6.8.0-1049.52.1USN-8100-1

linux-image-6.8.0-1049-nvidia-lowlatency-64kUbuntu

Fixed in:6.8.0-1049.52.1USN-8100-1

linux-image-6.8.0-1050-awsUbuntu

Fixed in:6.8.0-1050.53~22.04.1USN-8095-4

Fixed in:6.8.0-1050.53USN-8095-1

linux-image-6.8.0-1050-aws-64kUbuntu

Fixed in:6.8.0-1050.53~22.04.1USN-8095-4

Fixed in:6.8.0-1050.53USN-8095-1

linux-image-6.8.0-1050-aws-fipsUbuntu

Fixed in:6.8.0-1050.53+fips1USN-8095-2

linux-image-6.8.0-1050-raspiUbuntu

Fixed in:6.8.0-1050.54USN-8095-5

linux-image-6.8.0-1051-azureUbuntu

Fixed in:6.8.0-1051.57~22.04.1USN-8126-1

Fixed in:6.8.0-1051.57USN-8125-1

linux-image-6.8.0-1052-azure-fipsUbuntu

Fixed in:6.8.0-1052.58+fips1USN-8165-1

linux-image-6.8.0-1052-gcpUbuntu

Fixed in:6.8.0-1052.55~22.04.1USN-8095-1

Fixed in:6.8.0-1052.55USN-8095-1

linux-image-6.8.0-1052-gcp-64kUbuntu

Fixed in:6.8.0-1052.55~22.04.1USN-8095-1

Fixed in:6.8.0-1052.55USN-8095-1

linux-image-6.8.0-1052-gcp-fipsUbuntu

Fixed in:6.8.0-1052.55+fips1USN-8095-2

linux-image-6.8.0-106-fipsUbuntu

Fixed in:6.8.0-106.106+fips1USN-8095-2

linux-image-6.8.0-106-genericUbuntu

Fixed in:6.8.0-106.106~22.04.1USN-8095-1

Fixed in:6.8.0-106.106USN-8095-1

linux-image-6.8.0-106-generic-64kUbuntu

Fixed in:6.8.0-106.106~22.04.1USN-8095-1

Fixed in:6.8.0-106.106USN-8095-1

linux-image-6.8.0-106-lowlatencyUbuntu

Fixed in:6.8.0-106.106.1~22.04.1USN-8095-1

Fixed in:6.8.0-106.106.1USN-8095-1

linux-image-6.8.0-106-lowlatency-64kUbuntu

Fixed in:6.8.0-106.106.1~22.04.1USN-8095-1

Fixed in:6.8.0-106.106.1USN-8095-1

linux-image-6.8.0-2040-raspi-realtimeUbuntu

Fixed in:6.8.0-2040.41USN-8095-5

linux-image-6.8.1-1045-realtimeUbuntu

Fixed in:6.8.1-1045.46~22.04.1USN-8095-3

Fixed in:6.8.1-1045.46USN-8095-3

linux-image-awsUbuntu

Fixed in:6.8.0-1050.53~22.04.1USN-8095-4

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-6.8Ubuntu

Fixed in:6.8.0-1050.53~22.04.1USN-8095-4

Fixed in:6.8.0-1050.53USN-8095-1

linux-image-aws-64kUbuntu

Fixed in:6.8.0-1050.53~22.04.1USN-8095-4

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-aws-64k-6.8Ubuntu

Fixed in:6.8.0-1050.53~22.04.1USN-8095-4

Fixed in:6.8.0-1050.53USN-8095-1

linux-image-aws-64k-lts-24.04Ubuntu

Fixed in:6.8.0-1050.53USN-8095-1

linux-image-aws-fipsUbuntu

Fixed in:6.8.0-1050.53+fips1USN-8095-2

linux-image-aws-fips-6.8Ubuntu

Fixed in:6.8.0-1050.53+fips1USN-8095-2

linux-image-aws-lts-24.04Ubuntu

Fixed in:6.8.0-1050.53USN-8095-1

linux-image-azureUbuntu

Fixed in:6.8.0-1051.57~22.04.1USN-8126-1

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-azure-6.8Ubuntu

Fixed in:6.8.0-1051.57~22.04.1USN-8126-1

Fixed in:6.8.0-1051.57USN-8125-1

linux-image-azure-fipsUbuntu

Fixed in:6.8.0-1052.58+fips1USN-8165-1

linux-image-azure-fips-6.8Ubuntu

Fixed in:6.8.0-1052.58+fips1USN-8165-1

linux-image-azure-lts-24.04Ubuntu

Fixed in:6.8.0-1051.57USN-8125-1

linux-image-fipsUbuntu

Fixed in:6.8.0-106.106+fips1USN-8095-2

linux-image-fips-6.8Ubuntu

Fixed in:6.8.0-106.106+fips1USN-8095-2

linux-image-gcpUbuntu

Fixed in:6.8.0-1052.55~22.04.1USN-8095-1

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-6.8Ubuntu

Fixed in:6.8.0-1052.55~22.04.1USN-8095-1

Fixed in:6.8.0-1052.55USN-8095-1

linux-image-gcp-64kUbuntu

Fixed in:6.8.0-1052.55~22.04.1USN-8095-1

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-gcp-64k-6.8Ubuntu

Fixed in:6.8.0-1052.55~22.04.1USN-8095-1

Fixed in:6.8.0-1052.55USN-8095-1

linux-image-gcp-64k-lts-24.04Ubuntu

Fixed in:6.8.0-1052.55USN-8095-1

linux-image-gcp-fipsUbuntu

Fixed in:6.8.0-1052.55+fips1USN-8095-2

linux-image-gcp-fips-6.8Ubuntu

Fixed in:6.8.0-1052.55+fips1USN-8095-2

linux-image-gcp-lts-24.04Ubuntu

Fixed in:6.8.0-1052.55USN-8095-1

linux-image-genericUbuntu

Fixed in:6.8.0-106.106USN-8095-1

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-6.8Ubuntu

Fixed in:6.8.0-106.106~22.04.1USN-8095-1

Fixed in:6.8.0-106.106USN-8095-1

linux-image-generic-64kUbuntu

Fixed in:6.8.0-106.106USN-8095-1

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-generic-64k-6.8Ubuntu

Fixed in:6.8.0-106.106~22.04.1USN-8095-1

Fixed in:6.8.0-106.106USN-8095-1

linux-image-generic-64k-hwe-22.04Ubuntu

Fixed in:6.8.0-106.106~22.04.1USN-8095-1

linux-image-generic-hwe-22.04Ubuntu

Fixed in:6.8.0-106.106~22.04.1USN-8095-1

linux-image-generic-lpaeUbuntu

Fixed in:6.8.0-106.106USN-8095-1

linux-image-gkeUbuntu

Fixed in:6.8.0-1048.53USN-8095-1

linux-image-gke-6.8Ubuntu

Fixed in:6.8.0-1048.53USN-8095-1

linux-image-gke-64kUbuntu

Fixed in:6.8.0-1048.53USN-8095-1

linux-image-gke-64k-6.8Ubuntu

Fixed in:6.8.0-1048.53USN-8095-1

linux-image-gkeopUbuntu

Fixed in:6.8.0-1035.38USN-8095-1

linux-image-gkeop-6.8Ubuntu

Fixed in:6.8.0-1035.38USN-8095-1

linux-image-ibmUbuntu

Fixed in:6.8.0-1049.49USN-8095-1

linux-image-ibm-6.8Ubuntu

Fixed in:6.8.0-1049.49~22.04.1USN-8095-1

Fixed in:6.8.0-1049.49USN-8095-1

linux-image-ibm-classicUbuntu

Fixed in:6.8.0-1049.49USN-8095-1

linux-image-ibm-lts-24.04Ubuntu

Fixed in:6.8.0-1049.49USN-8095-1

linux-image-intel-iot-realtimeUbuntu

Fixed in:6.8.1-1045.46USN-8095-3

linux-image-intel-iotgUbuntu

Fixed in:6.8.0-106.106USN-8095-1

linux-image-kvmUbuntu

Fixed in:6.8.0-106.106USN-8095-1

linux-image-lowlatencyUbuntu

Fixed in:6.8.0-106.106.1USN-8095-1

linux-image-lowlatency-6.8Ubuntu

Fixed in:6.8.0-106.106.1~22.04.1USN-8095-1

Fixed in:6.8.0-106.106.1USN-8095-1

linux-image-lowlatency-64kUbuntu

Fixed in:6.8.0-106.106.1USN-8095-1

linux-image-lowlatency-64k-6.8Ubuntu

Fixed in:6.8.0-106.106.1~22.04.1USN-8095-1

Fixed in:6.8.0-106.106.1USN-8095-1

linux-image-lowlatency-64k-hwe-22.04Ubuntu

Fixed in:6.8.0-106.106.1~22.04.1USN-8095-1

linux-image-lowlatency-hwe-22.04Ubuntu

Fixed in:6.8.0-106.106.1~22.04.1USN-8095-1

linux-image-nvidiaUbuntu

Fixed in:6.8.0-1049.52USN-8100-1

linux-image-nvidia-6.8Ubuntu

Fixed in:6.8.0-1049.52~22.04.1USN-8100-1

Fixed in:6.8.0-1049.52USN-8100-1

linux-image-nvidia-64kUbuntu

Fixed in:6.8.0-1049.52USN-8100-1

linux-image-nvidia-64k-6.8Ubuntu

Fixed in:6.8.0-1049.52~22.04.1USN-8100-1

Fixed in:6.8.0-1049.52USN-8100-1

linux-image-nvidia-64k-hwe-22.04Ubuntu

Fixed in:6.8.0-1049.52~22.04.1USN-8100-1

linux-image-nvidia-hwe-22.04Ubuntu

Fixed in:6.8.0-1049.52~22.04.1USN-8100-1

linux-image-nvidia-lowlatencyUbuntu

Fixed in:6.8.0-1049.52.1USN-8100-1

linux-image-nvidia-lowlatency-6.8Ubuntu

Fixed in:6.8.0-1049.52.1USN-8100-1

linux-image-nvidia-lowlatency-64kUbuntu

Fixed in:6.8.0-1049.52.1USN-8100-1

linux-image-nvidia-lowlatency-64k-6.8Ubuntu

Fixed in:6.8.0-1049.52.1USN-8100-1

linux-image-oem-22.04Ubuntu

Fixed in:6.8.0-106.106~22.04.1USN-8095-1

linux-image-oem-22.04aUbuntu

Fixed in:6.8.0-106.106~22.04.1USN-8095-1

linux-image-oem-22.04bUbuntu

Fixed in:6.8.0-106.106~22.04.1USN-8095-1

linux-image-oem-22.04cUbuntu

Fixed in:6.8.0-106.106~22.04.1USN-8095-1

linux-image-oem-22.04dUbuntu

Fixed in:6.8.0-106.106~22.04.1USN-8095-1

linux-image-oem-6.17Ubuntu

Fixed in:6.17.0-1011.11USN-8048-1

linux-image-oracleUbuntu

Fixed in:6.8.0-1047.48~22.04.1USN-8095-1

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-6.8Ubuntu

Fixed in:6.8.0-1047.48~22.04.1USN-8095-1

Fixed in:6.8.0-1047.48USN-8095-1

linux-image-oracle-64kUbuntu

Fixed in:6.8.0-1047.48~22.04.1USN-8095-1

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-oracle-64k-6.8Ubuntu

Fixed in:6.8.0-1047.48~22.04.1USN-8095-1

Fixed in:6.8.0-1047.48USN-8095-1

linux-image-oracle-64k-lts-24.04Ubuntu

Fixed in:6.8.0-1047.48USN-8095-1

linux-image-oracle-lts-24.04Ubuntu

Fixed in:6.8.0-1047.48USN-8095-1

linux-image-raspiUbuntu

Fixed in:6.8.0-1050.54USN-8095-5

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-raspi-6.8Ubuntu

Fixed in:6.8.0-1050.54USN-8095-5

linux-image-raspi-realtimeUbuntu

Fixed in:6.8.0-2040.41USN-8095-5

linux-image-raspi-realtime-6.8Ubuntu

Fixed in:6.8.0-2040.41USN-8095-5

linux-image-realtimeUbuntu

Fixed in:6.8.1-1045.46USN-8095-3

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-realtime-6.8.1Ubuntu

Fixed in:6.8.1-1045.46~22.04.1USN-8095-3

Fixed in:6.8.1-1045.46USN-8095-3

linux-image-realtime-hwe-22.04Ubuntu

Fixed in:6.8.1-1045.46~22.04.1USN-8095-3

linux-image-virtualUbuntu

Fixed in:6.8.0-106.106USN-8095-1

Fixed in:6.17.0-14.14USN-8029-1

linux-image-virtual-6.17Ubuntu

Fixed in:6.17.0-14.14USN-8029-1

linux-image-virtual-6.8Ubuntu

Fixed in:6.8.0-106.106~22.04.1USN-8095-1

Fixed in:6.8.0-106.106USN-8095-1

linux-image-virtual-hwe-22.04Ubuntu

Fixed in:6.8.0-106.106~22.04.1USN-8095-1

linux-image-xilinxUbuntu

Fixed in:6.8.0.1029.30USN-8261-1

linux-image-xilinx-6.8Ubuntu

Fixed in:6.8.0.1029.30USN-8261-1

linux-image-xilinx-zynqmpUbuntu

Fixed in:6.8.0.1029.30USN-8261-1

linux-lowlatencyUbuntu

Fixed in:6.8.0-106.106.1USN-8095-1

linux-lowlatency-hwe-6.8Ubuntu

Fixed in:6.8.0-106.106.1~22.04.1USN-8095-1

linux-nvidiaUbuntu

Fixed in:6.8.0-1049.52USN-8100-1

linux-nvidia-6.8Ubuntu

Fixed in:6.8.0-1049.52~22.04.1USN-8100-1

linux-nvidia-lowlatencyUbuntu

Fixed in:6.8.0-1049.52.1USN-8100-1

linux-oem-6.17Ubuntu

Fixed in:6.17.0-1011.11USN-8048-1

linux-oracleUbuntu

Fixed in:6.8.0-1047.48USN-8095-1

Fixed in:6.17.0-1007.7USN-8029-2

linux-oracle-6.8Ubuntu

Fixed in:6.8.0-1047.48~22.04.1USN-8095-1

linux-raspiUbuntu

Fixed in:6.8.0-1050.54USN-8095-5

Fixed in:6.17.0-1008.8USN-8029-1

linux-raspi-realtimeUbuntu

Fixed in:6.8.0-2040.41USN-8095-5

linux-realtimeUbuntu

Fixed in:6.8.1-1045.46USN-8095-3

Fixed in:6.17.0-1006.7USN-8029-1

linux-realtime-6.8Ubuntu

Fixed in:6.8.1-1045.46~22.04.1USN-8095-3

linux-xilinxUbuntu

Fixed in:6.8.0-1029.30USN-8261-1

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

0.19%probability of exploitation in 30 days

9thpercentile

Low risk: more likely to be exploited than 9% of all known CVEs.

References

Other references3

Embed a live status badge for CVE-2025-40031

Markdown

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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 2025-10-30.