Is CVE-2025-21667 in the CISA KEV catalog?

No. CVE-2025-21667 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-21667?

CVE-2025-21667 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2025-21667?

CVE-2025-21667 has an EPSS score of 0.20% (10th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-21667?

Upgrade linux on debian 12 to 6.1.128-1 or later. Fixes are available for 123 affected products.

CVE & CISA-KEV Catalog

CVE-2025-21667

MEDIUM

5.5

CVSS v3

NVD

Description

In the Linux kernel, the following vulnerability has been resolved: iomap: avoid avoid truncating 64-bit offset to 32 bits on 32-bit kernels, iomap_write_delalloc_scan() was inadvertently using a 32-bit position due to folio_next_index() returning an unsigned long. This could lead to an infinite loop when writing to an xfs filesystem.

CWE-835

How to fix

Remediation Available

linuxDebian

Fixed in:6.1.128-1CVE-2025-21667

Fixed in:6.12.11-1CVE-2025-21667

linuxUbuntu

Fixed in:6.8.0-62.65USN-7595-1

linux-awsUbuntu

Fixed in:6.8.0-1030.32USN-7595-1

linux-aws-6.8Ubuntu

Fixed in:6.8.0-1030.32~22.04.1USN-7595-1

linux-azureUbuntu

Fixed in:6.8.0-1030.35USN-7596-1

linux-azure-6.11Ubuntu

Fixed in:6.11.0-1013.13~24.04.1USN-7448-1

linux-azure-6.8Ubuntu

Fixed in:6.8.0-1030.35~22.04.1USN-7596-1

linux-azure-nvidiaUbuntu

Fixed in:6.8.0-1018.19USN-7596-2

linux-gcpUbuntu

Fixed in:6.8.0-1031.33USN-7595-5

linux-gcp-6.8Ubuntu

Fixed in:6.8.0-1031.33~22.04.1USN-7595-5

linux-gkeUbuntu

Fixed in:6.8.0-1026.30USN-7595-1

linux-gkeopUbuntu

Fixed in:6.8.0-1013.15USN-7595-1

linux-hwe-6.11Ubuntu

Fixed in:6.11.0-24.24~24.04.1USN-7445-1

linux-hwe-6.8Ubuntu

Fixed in:6.8.0-64.67~22.04.1USN-7653-1

linux-ibmUbuntu

Fixed in:6.8.0-1027.27USN-7595-1

linux-image-6.11.0-1012-lowlatencyUbuntu

Fixed in:6.11.0-1012.13~24.04.1USN-7445-1

linux-image-6.11.0-1012-lowlatency-64kUbuntu

Fixed in:6.11.0-1012.13~24.04.1USN-7445-1

linux-image-6.11.0-1013-azureUbuntu

Fixed in:6.11.0-1013.13~24.04.1USN-7448-1

linux-image-6.11.0-1013-azure-fdeUbuntu

Fixed in:6.11.0-1013.13~24.04.1USN-7448-1

linux-image-6.11.0-1020-oemUbuntu

Fixed in:6.11.0-1020.20USN-7445-1

linux-image-6.11.0-24-genericUbuntu

Fixed in:6.11.0-24.24~24.04.1USN-7445-1

linux-image-6.11.0-24-generic-64kUbuntu

Fixed in:6.11.0-24.24~24.04.1USN-7445-1

linux-image-6.8.0-1013-gkeopUbuntu

Fixed in:6.8.0-1013.15USN-7595-1

linux-image-6.8.0-1018-azure-nvidiaUbuntu

Fixed in:6.8.0-1018.19USN-7596-2

linux-image-6.8.0-1026-gkeUbuntu

Fixed in:6.8.0-1026.30USN-7595-1

linux-image-6.8.0-1027-ibmUbuntu

Fixed in:6.8.0-1027.27USN-7595-1

linux-image-6.8.0-1027-oracleUbuntu

Fixed in:6.8.0-1027.28~22.04.1USN-7595-4

Fixed in:6.8.0-1027.28USN-7595-4

linux-image-6.8.0-1027-oracle-64kUbuntu

Fixed in:6.8.0-1027.28~22.04.1USN-7595-4

Fixed in:6.8.0-1027.28USN-7595-4

linux-image-6.8.0-1029-nvidiaUbuntu

Fixed in:6.8.0-1029.32~22.04.1USN-7595-1

Fixed in:6.8.0-1029.32USN-7595-1

linux-image-6.8.0-1029-nvidia-64kUbuntu

Fixed in:6.8.0-1029.32~22.04.1USN-7595-1

Fixed in:6.8.0-1029.32USN-7595-1

linux-image-6.8.0-1029-nvidia-lowlatencyUbuntu

Fixed in:6.8.0-1029.32.1USN-7595-1

linux-image-6.8.0-1029-nvidia-lowlatency-64kUbuntu

Fixed in:6.8.0-1029.32.1USN-7595-1

linux-image-6.8.0-1029-oemUbuntu

Fixed in:6.8.0-1029.29USN-7595-1

linux-image-6.8.0-1029-raspiUbuntu

Fixed in:6.8.0-1029.33USN-7595-4

linux-image-6.8.0-1030-awsUbuntu

Fixed in:6.8.0-1030.32~22.04.1USN-7595-1

Fixed in:6.8.0-1030.32USN-7595-1

linux-image-6.8.0-1030-aws-64kUbuntu

Fixed in:6.8.0-1030.32~22.04.1USN-7595-1

Fixed in:6.8.0-1030.32USN-7595-1

linux-image-6.8.0-1030-azureUbuntu

Fixed in:6.8.0-1030.35~22.04.1USN-7596-1

Fixed in:6.8.0-1030.35USN-7596-1

linux-image-6.8.0-1030-azure-fdeUbuntu

Fixed in:6.8.0-1030.35~22.04.1USN-7596-1

Fixed in:6.8.0-1030.35USN-7596-1

linux-image-6.8.0-1031-gcpUbuntu

Fixed in:6.8.0-1031.33~22.04.1USN-7595-5

Fixed in:6.8.0-1031.33USN-7595-5

linux-image-6.8.0-1031-gcp-64kUbuntu

Fixed in:6.8.0-1031.33~22.04.1USN-7595-5

Fixed in:6.8.0-1031.33USN-7595-5

linux-image-6.8.0-2024-raspi-realtimeUbuntu

Fixed in:6.8.0-2024.25USN-7595-3

linux-image-6.8.0-62-genericUbuntu

Fixed in:6.8.0-62.65USN-7595-1

linux-image-6.8.0-62-generic-64kUbuntu

Fixed in:6.8.0-62.65USN-7595-1

linux-image-6.8.0-62-lowlatencyUbuntu

Fixed in:6.8.0-62.65.1~22.04.1USN-7595-1

Fixed in:6.8.0-62.65.1USN-7595-1

linux-image-6.8.0-62-lowlatency-64kUbuntu

Fixed in:6.8.0-62.65.1~22.04.1USN-7595-1

Fixed in:6.8.0-62.65.1USN-7595-1

linux-image-6.8.0-64-genericUbuntu

Fixed in:6.8.0-64.67~22.04.1USN-7653-1

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

Fixed in:6.8.0-64.67~22.04.1USN-7653-1

linux-image-6.8.1-1023-realtimeUbuntu

Fixed in:6.8.1-1023.24USN-7595-2

linux-image-awsUbuntu

Fixed in:6.8.0-1030.32~22.04.1+1USN-7595-1

Fixed in:6.8.0-1030.32+1USN-7595-1

linux-image-aws-64kUbuntu

Fixed in:6.8.0-1030.32~22.04.1+1USN-7595-1

Fixed in:6.8.0-1030.32+1USN-7595-1

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

Fixed in:6.8.0-1030.32+1USN-7595-1

linux-image-aws-lts-24.04Ubuntu

Fixed in:6.8.0-1030.32+1USN-7595-1

linux-image-azureUbuntu

Fixed in:6.8.0-1030.35~22.04.1USN-7596-1

Fixed in:6.11.0-1013.13~24.04.1USN-7448-1

linux-image-azure-fdeUbuntu

Fixed in:6.8.0-1030.35~22.04.1USN-7596-1

Fixed in:6.11.0-1013.13~24.04.1USN-7448-1

linux-image-azure-fde-lts-24.04Ubuntu

Fixed in:6.8.0-1030.35USN-7596-1

linux-image-azure-lts-24.04Ubuntu

Fixed in:6.8.0-1030.35USN-7596-1

linux-image-azure-nvidiaUbuntu

Fixed in:6.8.0-1018.19USN-7596-2

linux-image-gcpUbuntu

Fixed in:6.8.0-1031.33~22.04.1USN-7595-5

linux-image-gcp-64kUbuntu

Fixed in:6.8.0-1031.33~22.04.1USN-7595-5

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

Fixed in:6.8.0-1031.33USN-7595-5

linux-image-gcp-lts-24.04Ubuntu

Fixed in:6.8.0-1031.33USN-7595-5

linux-image-genericUbuntu

Fixed in:6.8.0-62.65USN-7595-1

linux-image-generic-6.8Ubuntu

Fixed in:6.8.0-64.67~22.04.1USN-7653-1

linux-image-generic-64kUbuntu

Fixed in:6.8.0-62.65USN-7595-1

linux-image-generic-64k-6.8Ubuntu

Fixed in:6.8.0-64.67~22.04.1USN-7653-1

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

Fixed in:6.8.0-64.67~22.04.1USN-7653-1

linux-image-generic-64k-hwe-24.04Ubuntu

Fixed in:6.11.0-24.24~24.04.1USN-7445-1

linux-image-generic-hwe-22.04Ubuntu

Fixed in:6.8.0-64.67~22.04.1USN-7653-1

linux-image-generic-hwe-24.04Ubuntu

Fixed in:6.11.0-24.24~24.04.1USN-7445-1

linux-image-generic-lpaeUbuntu

Fixed in:6.8.0-62.65USN-7595-1

linux-image-gkeUbuntu

Fixed in:6.8.0-1026.30USN-7595-1

linux-image-gkeopUbuntu

Fixed in:6.8.0-1013.15USN-7595-1

linux-image-gkeop-6.8Ubuntu

Fixed in:6.8.0-1013.15USN-7595-1

linux-image-ibmUbuntu

Fixed in:6.8.0-1027.27USN-7595-1

linux-image-ibm-classicUbuntu

Fixed in:6.8.0-1027.27USN-7595-1

linux-image-ibm-lts-24.04Ubuntu

Fixed in:6.8.0-1027.27USN-7595-1

linux-image-kvmUbuntu

Fixed in:6.8.0-62.65USN-7595-1

linux-image-lowlatencyUbuntu

Fixed in:6.8.0-62.65.1USN-7595-1

linux-image-lowlatency-64kUbuntu

Fixed in:6.8.0-62.65.1USN-7595-1

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

Fixed in:6.8.0-62.65.1~22.04.1USN-7595-1

linux-image-lowlatency-64k-hwe-24.04Ubuntu

Fixed in:6.11.0-1012.13~24.04.1USN-7445-1

linux-image-lowlatency-hwe-22.04Ubuntu

Fixed in:6.8.0-62.65.1~22.04.1USN-7595-1

linux-image-lowlatency-hwe-24.04Ubuntu

Fixed in:6.11.0-1012.13~24.04.1USN-7445-1

linux-image-nvidiaUbuntu

Fixed in:6.8.0-1029.32USN-7595-1

linux-image-nvidia-6.8Ubuntu

Fixed in:6.8.0-1029.32~22.04.1USN-7595-1

linux-image-nvidia-64kUbuntu

Fixed in:6.8.0-1029.32USN-7595-1

linux-image-nvidia-64k-6.8Ubuntu

Fixed in:6.8.0-1029.32~22.04.1USN-7595-1

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

Fixed in:6.8.0-1029.32~22.04.1USN-7595-1

linux-image-nvidia-hwe-22.04Ubuntu

Fixed in:6.8.0-1029.32~22.04.1USN-7595-1

linux-image-nvidia-lowlatencyUbuntu

Fixed in:6.8.0-1029.32.1USN-7595-1

linux-image-nvidia-lowlatency-64kUbuntu

Fixed in:6.8.0-1029.32.1USN-7595-1

linux-image-oem-22.04Ubuntu

Fixed in:6.8.0-64.67~22.04.1USN-7653-1

linux-image-oem-22.04aUbuntu

Fixed in:6.8.0-64.67~22.04.1USN-7653-1

linux-image-oem-22.04bUbuntu

Fixed in:6.8.0-64.67~22.04.1USN-7653-1

linux-image-oem-22.04cUbuntu

Fixed in:6.8.0-64.67~22.04.1USN-7653-1

linux-image-oem-22.04dUbuntu

Fixed in:6.8.0-64.67~22.04.1USN-7653-1

linux-image-oem-24.04Ubuntu

Fixed in:6.8.0-1029.29USN-7595-1

linux-image-oem-24.04aUbuntu

Fixed in:6.8.0-1029.29USN-7595-1

linux-image-oem-24.04bUbuntu

Fixed in:6.11.0-1020.20USN-7445-1

linux-image-oracleUbuntu

Fixed in:6.8.0-1027.28~22.04.1USN-7595-4

Fixed in:6.8.0-1027.28USN-7595-4

linux-image-oracle-64kUbuntu

Fixed in:6.8.0-1027.28~22.04.1USN-7595-4

Fixed in:6.8.0-1027.28USN-7595-4

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

Fixed in:6.8.0-1027.28USN-7595-4

linux-image-oracle-lts-24.04Ubuntu

Fixed in:6.8.0-1027.28USN-7595-4

linux-image-raspiUbuntu

Fixed in:6.8.0-1029.33USN-7595-4

linux-image-raspi-realtimeUbuntu

Fixed in:6.8.0-2024.25USN-7595-3

linux-image-realtimeUbuntu

Fixed in:6.8.1-1023.24USN-7595-2

linux-image-virtualUbuntu

Fixed in:6.8.0-62.65USN-7595-1

linux-image-virtual-6.8Ubuntu

Fixed in:6.8.0-64.67~22.04.1USN-7653-1

linux-image-virtual-hwe-22.04Ubuntu

Fixed in:6.8.0-64.67~22.04.1USN-7653-1

linux-image-virtual-hwe-24.04Ubuntu

Fixed in:6.11.0-24.24~24.04.1USN-7445-1

linux-lowlatencyUbuntu

Fixed in:6.8.0-62.65.1USN-7595-1

linux-lowlatency-hwe-6.11Ubuntu

Fixed in:6.11.0-1012.13~24.04.1USN-7445-1

linux-lowlatency-hwe-6.8Ubuntu

Fixed in:6.8.0-62.65.1~22.04.1USN-7595-1

linux-nvidiaUbuntu

Fixed in:6.8.0-1029.32USN-7595-1

linux-nvidia-6.8Ubuntu

Fixed in:6.8.0-1029.32~22.04.1USN-7595-1

linux-nvidia-lowlatencyUbuntu

Fixed in:6.8.0-1029.32.1USN-7595-1

linux-oem-6.11Ubuntu

Fixed in:6.11.0-1020.20USN-7445-1

linux-oem-6.8Ubuntu

Fixed in:6.8.0-1029.29USN-7595-1

linux-oracleUbuntu

Fixed in:6.8.0-1027.28USN-7595-4

linux-oracle-6.8Ubuntu

Fixed in:6.8.0-1027.28~22.04.1USN-7595-4

linux-raspiUbuntu

Fixed in:6.8.0-1029.33USN-7595-4

linux-raspi-realtimeUbuntu

Fixed in:6.8.0-2024.25USN-7595-3

linux-realtimeUbuntu

Fixed in:6.8.1-1023.24USN-7595-2

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

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

0.20%probability of exploitation in 30 days

10thpercentile

Low risk: more likely to be exploited than 10% of all known CVEs.

References

Patch4

Other references1

lists.debian.org

Related Vulnerabilities

Other CWE-835 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-13935	High	7.5	88%	-	Fix
CVE-2020-36227	High	7.5	78%	-	Fix
CVE-2022-0778	High	7.5	71%	-	Fix
CVE-2019-14241	High	7.5	70%	-	-
CVE-2017-16944	High	7.5	63%	-	Fix
CVE-2024-20353	High	8.6	63%	KEV	-

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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 2025-11-03.