CVE-2025-21665 - Vulnerability Details

- filemap: avoid truncating 64-bit offset to 32 bits

Description

In the Linux kernel, the following vulnerability has been resolved:

filemap: avoid truncating 64-bit offset to 32 bits

On 32-bit kernels, folio_seek_hole_data() was inadvertently truncating a
64-bit value to 32 bits, leading to a possible infinite loop when writing
to an xfs filesystem.

Published: 2025-01-31

Score: 5.5 Medium

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Linux

unaffected

Version	Status	Constraints
`54fa39ac2e00b1b8c2a7fe72e648773ffa48f76d`	affected	< 64e5fd96330df2ad278d1c4edcca581f26e5f76e
`54fa39ac2e00b1b8c2a7fe72e648773ffa48f76d`	affected	< 80fc836f3ebe2f2d2d2c80c698b7667974285a04
`54fa39ac2e00b1b8c2a7fe72e648773ffa48f76d`	affected	< 09528bb1a4123e2a234eac2bc45a0e51e78dab43
`54fa39ac2e00b1b8c2a7fe72e648773ffa48f76d`	affected	< 280f1fb89afc01e7376f59ae611d54ca69e9f967
`54fa39ac2e00b1b8c2a7fe72e648773ffa48f76d`	affected	< f505e6c91e7a22d10316665a86d79f84d9f0ba76

Linux

affected

Version	Status	Constraints
`5.12`	affected	—
`0`	unaffected	< 5.12
`5.15.177`	unaffected	≤ 5.15.*
`6.1.127`	unaffected	≤ 6.1.*
`6.6.74`	unaffected	≤ 6.6.*
`6.12.11`	unaffected	≤ 6.12.*
`6.13`	unaffected	≤ *

Configuration 1 [-]

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:6.13:rc1::::::
	cpe:2.3:o:linux:linux_kernel:6.13:rc2::::::
	cpe:2.3:o:linux:linux_kernel:6.13:rc3::::::
	cpe:2.3:o:linux:linux_kernel:6.13:rc4::::::
	cpe:2.3:o:linux:linux_kernel:6.13:rc5::::::
	cpe:2.3:o:linux:linux_kernel:6.13:rc6::::::
	cpe:2.3:o:linux:linux_kernel:6.13:rc7::::::

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

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Advisories

Source	ID	Title
Debian DLA	DLA-4076-1	linux-6.1 security update
EUVD	EUVD-2025-2614	In the Linux kernel, the following vulnerability has been resolved: filemap: avoid truncating 64-bit offset to 32 bits On 32-bit kernels, folio_seek_hole_data() was inadvertently truncating a 64-bit value to 32 bits, leading to a possible infinite loop when writing to an xfs filesystem.
Ubuntu USN	USN-7387-1	Linux kernel vulnerabilities
Ubuntu USN	USN-7387-2	Linux kernel (FIPS) vulnerabilities
Ubuntu USN	USN-7387-3	Linux kernel (Real-time) vulnerabilities
Ubuntu USN	USN-7388-1	Linux kernel vulnerabilities
Ubuntu USN	USN-7389-1	Linux kernel (NVIDIA Tegra) vulnerabilities
Ubuntu USN	USN-7390-1	Linux kernel (Xilinx ZynqMP) vulnerabilities
Ubuntu USN	USN-7407-1	Linux kernel (HWE) vulnerabilities
Ubuntu USN	USN-7421-1	Linux kernel (Azure) vulnerabilities
Ubuntu USN	USN-7445-1	Linux kernel vulnerabilities
Ubuntu USN	USN-7448-1	Linux kernel vulnerabilities
Ubuntu USN	USN-7458-1	Linux kernel (IBM) vulnerabilities
Ubuntu USN	USN-7459-1	Linux kernel (Intel IoTG) vulnerabilities
Ubuntu USN	USN-7459-2	Linux kernel (GCP) vulnerabilities
Ubuntu USN	USN-7595-1	Linux kernel vulnerabilities
Ubuntu USN	USN-7595-2	Linux kernel (Real-time) vulnerabilities
Ubuntu USN	USN-7595-3	Linux kernel (Raspberry Pi Real-time) vulnerabilities
Ubuntu USN	USN-7595-4	Linux kernel vulnerabilities
Ubuntu USN	USN-7595-5	Linux kernel vulnerabilities
Ubuntu USN	USN-7596-1	Linux kernel (Azure) vulnerabilities
Ubuntu USN	USN-7596-2	Linux kernel (Azure, N-Series) vulnerabilities
Ubuntu USN	USN-7653-1	Linux kernel (HWE) vulnerabilities

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00011.

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://git.kernel.org/stable/c/09528bb1a4123e2a234eac2bc45a0e51e78dab43
https://git.kernel.org/stable/c/280f1fb89afc01e7376f59ae611d54ca69e9f967
https://git.kernel.org/stable/c/64e5fd96330df2ad278d1c4edcca581f26e5f76e
https://git.kernel.org/stable/c/80fc836f3ebe2f2d2d2c80c698b7667974285a04
https://git.kernel.org/stable/c/f505e6c91e7a22d10316665a86d79f84d9f0ba76
https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
https://lore.kernel.org/linux-cve-announce/2025013157-CVE-2025-21665-d6a2@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2025-21665
https://www.cve.org/CVERecord?id=CVE-2025-21665

History

Mon, 03 Nov 2025 21:30:00 +0000

Type	Values Removed	Values Added
References		https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html

Wed, 01 Oct 2025 20:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Wed, 16 Jul 2025 13:45:00 +0000

Type	Values Removed	Values Added
Metrics	epss `{'score': 0.0003}`	epss `{'score': 0.00032}`

Fri, 11 Jul 2025 13:45:00 +0000

Type	Values Removed	Values Added
Metrics	epss `{'score': 0.00022}`	epss `{'score': 0.0003}`

Mon, 03 Feb 2025 20:15:00 +0000

Type	Values Removed	Values Added
First Time appeared		Linux Linux linux Kernel
Weaknesses		CWE-835
CPEs		cpe:2.3:o:linux:linux_kernel:::::::: cpe:2.3:o:linux:linux_kernel:6.13:rc1:::::: cpe:2.3:o:linux:linux_kernel:6.13:rc2:::::: cpe:2.3:o:linux:linux_kernel:6.13:rc3:::::: cpe:2.3:o:linux:linux_kernel:6.13:rc4:::::: cpe:2.3:o:linux:linux_kernel:6.13:rc5:::::: cpe:2.3:o:linux:linux_kernel:6.13:rc6:::::: cpe:2.3:o:linux:linux_kernel:6.13:rc7::::::
Vendors & Products		Linux Linux linux Kernel

Sat, 01 Feb 2025 02:00:00 +0000

Type	Values Removed	Values Added
References		https://lore.kernel.org/linux-cve-announce/2025013157-CVE-2025-21665-d6a2@gregkh/T https://nvd.nist.gov/vuln/detail/CVE-2025-21665 https://www.cve.org/CVERecord?id=CVE-2025-21665
Metrics	threat_severity `None`	cvssV3_1 `{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}` threat_severity `Moderate`

Fri, 31 Jan 2025 11:30:00 +0000

Type	Values Removed	Values Added
Description		In the Linux kernel, the following vulnerability has been resolved: filemap: avoid truncating 64-bit offset to 32 bits On 32-bit kernels, folio_seek_hole_data() was inadvertently truncating a 64-bit value to 32 bits, leading to a possible infinite loop when writing to an xfs filesystem.
Title		filemap: avoid truncating 64-bit offset to 32 bits
References		https://git.kernel.org/stable/c/09528bb1a4123e2a234eac2bc45a0e51e78dab43 https://git.kernel.org/stable/c/280f1fb89afc01e7376f59ae611d54ca69e9f967 https://git.kernel.org/stable/c/64e5fd96330df2ad278d1c4edcca581f26e5f76e https://git.kernel.org/stable/c/80fc836f3ebe2f2d2d2c80c698b7667974285a04 https://git.kernel.org/stable/c/f505e6c91e7a22d10316665a86d79f84d9f0ba76

Subscriptions

Linux Linux Kernel

MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2025-01-31T11:25:30.468Z

Updated: 2026-05-11T21:04:04.640Z

Reserved: 2024-12-29T08:45:45.733Z

Link: CVE-2025-21665

Vulnrichment

Updated: 2025-10-01T15:58:14.035Z

NVD

Status : Modified

Published: 2025-01-31T12:15:27.633

Modified: 2025-11-03T21:19:03.580

Link: CVE-2025-21665

Redhat

Severity : Moderate

Publid Date: 2025-01-31T00:00:00Z

Links: CVE-2025-21665 - Bugzilla

OpenCVE Enrichment

No data.

Weaknesses

CWE-835

Tracking

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

Exploitation none

Automatable no

Technical Impact partial

Subscriptions

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