CVE-2022-50368

Memory corruption via unchecked DSI bridge count

Published Sep 17, 2025 · Updated Sep 17, 2025

Out-of-bounds write in Linux kernel 4.1 through 6.1-rc2 allows local users to corrupt kernel memory via an oversized DSI bridge graph. The MSM DSI bridge-discovery loop writes each discovered bridge into a fixed eight-entry array without first enforcing the array bound. Triggering requires a DSI display configuration with more than eight chained bridges; the overwrite can compromise kernel data or interrupt the system.

CVSS severity7.8
High
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds write in Linux kernel 4.1 through 6.1-rc2 allows local users to corrupt kernel memory via an oversized DSI bridge graph. The MSM DSI bridge-discovery loop writes each discovered bridge into a fixed eight-entry array without first enforcing the array bound. Triggering requires a DSI display configuration with more than eight chained bridges; the overwrite can compromise kernel data or interrupt the system.

The record

CVE
CVE-2022-50368
Published
Sep 17, 2025
Updated
Sep 17, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-787, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 17, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 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=4.1
  2. Affected versionversion=a689554ba6ed81cf606c16539f6ffc2a1dcdaf8e <21c4679af01f1027cb559330c2e7d410089b2b36
  3. Affected versionversion=a689554ba6ed81cf606c16539f6ffc2a1dcdaf8e <2e786eb2f9cebb07e317226b60054df510b60c65
  4. Affected versionversion=a689554ba6ed81cf606c16539f6ffc2a1dcdaf8e <4e5587cddb334f7a5bb1c49ea8bbfc966fafe1b8
  5. Affected versionversion=a689554ba6ed81cf606c16539f6ffc2a1dcdaf8e <9f035d1fb30648fe70ee01627eb131c56d699b35
  6. Affected versionversion=a689554ba6ed81cf606c16539f6ffc2a1dcdaf8e <e83b354890a3c1d5256162f87a6cc38c47ae7f20
  7. Affected versionversion=a689554ba6ed81cf606c16539f6ffc2a1dcdaf8e <f649ed0e1b7a1545f8e27267d3c468b3cb222ece

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.1; version=a689554ba6ed81cf606c16539f6ffc2a1dcdaf8e <21c4679af01f1027cb559330c2e7d410089b2b36; version=a689554ba6ed81cf606c16539f6ffc2a1dcdaf8e <2e786eb2f9cebb07e317226b60054df510b60c65; version=a689554ba6ed81cf606c16539f6ffc2a1dcdaf8e <4e5587cddb334f7a5bb1c49ea8bbfc966fafe1b8; version=a689554ba6ed81cf606c16539f6ffc2a1dcdaf8e <9f035d1fb30648fe70ee01627eb131c56d699b35; version=a689554ba6ed81cf606c16539f6ffc2a1dcdaf8e <e83b354890a3c1d5256162f87a6cc38c47ae7f20; version=a689554ba6ed81cf606c16539f6ffc2a1dcdaf8e <f649ed0e1b7a1545f8e27267d3c468b3cb222ece

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8CISA-ADPCVSS: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

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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-787Out-of-bounds Write
T1068Exploitation for Privilege Escalation

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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