CVE-2026-23349
Received Received - Intake
NULL Pointer Dereference in Linux HID pidff Component

Publication date: 2026-03-25

Last updated on: 2026-04-24

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: HID: pidff: Fix condition effect bit clearing As reported by MPDarkGuy on discord, NULL pointer dereferences were happening because not all the conditional effects bits were cleared. Properly clear all conditional effect bits from ffbit
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Meta Information
Published
2026-03-25
Last Modified
2026-04-24
Generated
2026-06-16
AI Q&A
2026-03-25
EPSS Evaluated
2026-06-15
NVD
CVE-2026-23349
EUVD
EUVD-2026-15319
Affected Vendors & Products
Showing 10 associated CPEs
Vendor Product Version / Range
linux linux_kernel 6.18
linux linux_kernel From 6.18.1 (inc) to 6.18.17 (exc)
linux linux_kernel From 6.19 (inc) to 6.19.7 (exc)
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-476 The product dereferences a pointer that it expects to be valid but is NULL.
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Executive Summary

This vulnerability exists in the Linux kernel's HID subsystem, specifically in the pidff driver. The issue was that not all conditional effect bits were properly cleared, which caused NULL pointer dereferences. The fix involved ensuring that all conditional effect bits are correctly cleared to prevent these dereferences.

Impact Analysis

The vulnerability can lead to NULL pointer dereferences in the Linux kernel, which may cause system crashes or instability. This could potentially be exploited to disrupt normal system operations or cause denial of service.

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