CVE-2025-21667
First published: Fri Jan 31 2025(Updated: )
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.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | ||
| Linux Kernel | <6.1.127 | |
| Linux Kernel | >=6.2<6.6.74 | |
| Linux Kernel | >=6.7<6.12.11 | |
| Linux Kernel | =6.13-rc1 | |
| Linux Kernel | =6.13-rc2 | |
| Linux Kernel | =6.13-rc3 | |
| Linux Kernel | =6.13-rc4 | |
| Linux Kernel | =6.13-rc5 | |
| Linux Kernel | =6.13-rc6 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2025-21667?
CVE-2025-21667 is categorized as a medium severity vulnerability due to the potential for infinite loops caused by 32-bit offset truncation on 32-bit kernels.
How do I fix CVE-2025-21667?
To fix CVE-2025-21667, update your Linux kernel to a version newer than 6.1.127 or ensure you are using a fixed version that does not have this vulnerability.
What versions of the Linux kernel are affected by CVE-2025-21667?
CVE-2025-21667 affects 32-bit kernels within specified version ranges prior to patches included in updated releases.
When was CVE-2025-21667 disclosed?
CVE-2025-21667 was disclosed as part of the continuous security updates for the Linux kernel.
What are the potential impacts of CVE-2025-21667?
The potential impacts of CVE-2025-21667 include system instability and potential infinite loops in processes that utilize the affected iomap functionality.
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