CVE-2022-49974

Kernel crash via destroyed rumble workqueue

Published Jun 18, 2025 · Updated Aug 15, 2026

Null pointer dereference in Linux 5.16 through 5.19.6 allows physically proximate attackers to crash the kernel via Bluetooth. nintendo_hid_remove destroys rumble_queue while joycon_set_rumble can still queue deferred work to it after controller removal. Reachability requires the hid-nintendo force-feedback path, a connected or paired Joy-Con or Pro Controller, active rumble scheduling, and attacker-controlled disconnect timing.

CVSS severity5.5
Medium
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Null pointer dereference in Linux 5.16 through 5.19.6 allows physically proximate attackers to crash the kernel via Bluetooth. nintendo_hid_remove destroys rumble_queue while joycon_set_rumble can still queue deferred work to it after controller removal. Reachability requires the hid-nintendo force-feedback path, a connected or paired Joy-Con or Pro Controller, active rumble scheduling, and attacker-controlled disconnect timing.

The record

CVE
CVE-2022-49974
Published
Jun 18, 2025
Updated
Aug 15, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 18, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 15, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.16
  2. Affected versionversion=c4eae84feff3e68c2f385aa10faea4a96791e7ad <1ff89e06c2e5fab30274e4b02360d4241d6e605e
  3. Affected versionversion=c4eae84feff3e68c2f385aa10faea4a96791e7ad <7c6e6c334154be16740b44dcd7638fb510b9bd91

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.16; version=c4eae84feff3e68c2f385aa10faea4a96791e7ad <1ff89e06c2e5fab30274e4b02360d4241d6e605e; version=c4eae84feff3e68c2f385aa10faea4a96791e7ad <7c6e6c334154be16740b44dcd7638fb510b9bd91

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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