CVE-2022-49984: HID: steam: Prevent NULL pointer dereference in steam_{recv,send}_report

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-06-18 · updated 2026-06-17
Weakness: CWE-476

Description

In the Linux kernel, the following vulnerability has been resolved: HID: steam: Prevent NULL pointer dereference in steam_{recv,send}_report It is possible for a malicious device to forgo submitting a Feature Report. The HID Steam driver presently makes no prevision for this and de-references the 'struct hid_report' pointer obtained from the HID devices without first checking its validity. Let's change that.

Affected products

Linux kernel: from 4.18 before 4.19.257; from 4.20 before 5.4.212; from 5.5 before 5.10.141; from 5.11 before 5.15.65; from 5.16 before 5.19.7; 6.0-rc1, 6.0-rc2, 6.0-rc3 — fixed in 4.19.257, 5.10.141, 5.15.65, 5.19.7, 5.4.212

How to fix

Upgrade to a fixed version: Linux kernel 4.19.257, 5.10.141, 5.15.65, 5.19.7. Check the vendor advisory for mitigations.

References

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