CVE-2022-50016

System crash via premature firmware IPC reply

Published Jun 18, 2025 · Updated Aug 15, 2026

NULL pointer dereference in Linux kernel 5.2 through 5.19.3 allows local users to crash the system via malformed SOF firmware replies. The SOF Intel CNL IPC reply path processes a reply before FW_READY even though reply_data is allocated only after FW_READY. Reachability requires broken IPC3 or IPC4 firmware that sends this premature reply; the resulting kernel NULL dereference interrupts service.

CVSS severity5.5
Medium
EPSS probability0.19%
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 kernel 5.2 through 5.19.3 allows local users to crash the system via malformed SOF firmware replies. The SOF Intel CNL IPC reply path processes a reply before FW_READY even though reply_data is allocated only after FW_READY. Reachability requires broken IPC3 or IPC4 firmware that sends this premature reply; the resulting kernel NULL dereference interrupts service.

The record

CVE
CVE-2022-50016
Published
Jun 18, 2025
Updated
Aug 15, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499
Attack vector
local
Privileges
authenticated

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=5.19
  2. Affected versionversion=e3105c0ccc3e706584030159b6fde54cab2f8aef <230f646085d17a008b609eb8fe8befb8811868f0
  3. Affected versionversion=e3105c0ccc3e706584030159b6fde54cab2f8aef <acacd9eefd0def5a83244d88e5483b5f38ee7287

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.19; version=e3105c0ccc3e706584030159b6fde54cab2f8aef <230f646085d17a008b609eb8fe8befb8811868f0; version=e3105c0ccc3e706584030159b6fde54cab2f8aef <acacd9eefd0def5a83244d88e5483b5f38ee7287

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
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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