CVE-2022-50399

Kernel crash via unchecked black-frame size multiplication

Published Sep 18, 2025 · Updated Sep 18, 2025

Integer overflow in the atomisp camera driver in Linux allows local users to crash the kernel through crafted black-frame dimensions. sh_css_set_black_frame multiplies user-controlled height, width, and element size before kvmalloc without overflow-safe arithmetic, allowing an undersized allocation followed by indexed writes. A local low-privileged user must reach the atomisp black-frame interface; exploitation affects availability by terminating the running kernel.

CVSS severity7.8
High
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer overflow in the atomisp camera driver in Linux allows local users to crash the kernel through crafted black-frame dimensions. sh_css_set_black_frame multiplies user-controlled height, width, and element size before kvmalloc without overflow-safe arithmetic, allowing an undersized allocation followed by indexed writes. A local low-privileged user must reach the atomisp black-frame interface; exploitation affects availability by terminating the running kernel.

The record

CVE
CVE-2022-50399
Published
Sep 18, 2025
Updated
Sep 18, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-190, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 18, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 18, 2025Record 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=4.12
  2. Affected versionversion=a49d25364dfb9f8a64037488a39ab1f56c5fa419 <3ad290194bb06979367622e47357462836c1d3b4
  3. Affected versionversion=a49d25364dfb9f8a64037488a39ab1f56c5fa419 <a549517e4b761f3940011db30320cb8c9badde54
  4. Affected versionversion=a49d25364dfb9f8a64037488a39ab1f56c5fa419 <a560aeac2f2d284903b5900774765d7fc61547bc

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.12; version=a49d25364dfb9f8a64037488a39ab1f56c5fa419 <3ad290194bb06979367622e47357462836c1d3b4; version=a49d25364dfb9f8a64037488a39ab1f56c5fa419 <a549517e4b761f3940011db30320cb8c9badde54; version=a49d25364dfb9f8a64037488a39ab1f56c5fa419 <a560aeac2f2d284903b5900774765d7fc61547bc

Published CVSS scores

5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
7.8kernel.orgCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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 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-190Integer Overflow or Wraparound
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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