Bug 2365277 (CVE-2025-37862)

Summary: CVE-2025-37862 kernel: HID: pidff: Fix null pointer dereference in pidff_find_fields
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Description OSIDB Bzimport 2025-05-09 07:03:00 UTC 
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
Comment 1 Michal Findra 2025-05-09 07:45:55 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025050923-CVE-2025-37862-73e0@gregkh/T