CVE-2025-21667

MEDIUM

Linux Kernel < 6.1.127 - Denial of Service via Infinite Loop in iomap_write_delalloc_scan

Title source: llm
STIX 2.1

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.

References (5)

Core 5

Scores

CVSS v3 5.5
EPSS 0.0019
EPSS Percentile 9.1%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-835
Status published
Products (15)
linux/Kernel < 6.1.127linux
linux/Kernel 6.2.0 - 6.12.11linux
Linux/Linux < 6.2
Linux/Linux 38be53c3fd7f4f4bd5de319a323d72f9f6beb16d - 7ca4bd6b754913910151acce00be093f03642725
Linux/Linux 6.1.127 - 6.1.*
Linux/Linux 6.1.92 - 6.1.127
Linux/Linux 6.12.11 - 6.12.*
Linux/Linux 6.13
Linux/Linux 6.2
Linux/Linux 6.6.74 - 6.6.*
... and 5 more
Published Jan 31, 2025
Tracked Since Feb 18, 2026