CVE-2022-3078

System crash via unchecked encoder allocation

Published Sep 1, 2022 · Updated Aug 3, 2024

NULL-pointer dereference in Linux Kernel 5.16-rc6 and earlier allows local users to crash a system during vidtv S302M encoder setup. The encoder initializer uses the buffer returned by vzalloc without checking for allocation failure and omits buffer cleanup if later context allocation fails. The optional media test-driver configuration must include vidtv, and allocation failure can terminate kernel operation without exposing or altering data.

CVSS severity5.5
Medium
EPSS probability0.23%
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 5.16-rc6 and earlier allows local users to crash a system during vidtv S302M encoder setup. The encoder initializer uses the buffer returned by vzalloc without checking for allocation failure and omits buffer cleanup if later context allocation fails. The optional media test-driver configuration must include vidtv, and allocation failure can terminate kernel operation without exposing or altering data.

The record

CVE
CVE-2022-3078
Published
Sep 1, 2022
Updated
Aug 3, 2024
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-476, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 1, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record 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=Linux kernel 5.16-rc6

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=Linux kernel 5.16-rc6

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)
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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