CVE-2025-21667

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

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.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.03%
Affected: Linux Linux
Affected: Linux Linux
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2025-21667?
CVE-2025-21667 has been scored as a medium severity vulnerability.
How to fix CVE-2025-21667?
To fix CVE-2025-21667, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-21667 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-21667 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-21667?
CVE-2025-21667 affects Linux Linux, Linux Linux.
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