CVE-2022-1280Public exploit

Kernel memory disclosure or crash via DRM race

Published Apr 13, 2022 · Updated Aug 2, 2024

A use-after-free in the Linux kernel allows local users to disclose kernel memory or crash the system through concurrent DRM ioctls. drm_setmaster_ioctl can free fpriv->master while drm_mode_getresources still dereferences that object in drm_lease_held without locking or a retained reference. Access to a DRM device node and winning the race are required; the demonstrated consequences are memory disclosure and a system crash.

CVSS severity7.0
High
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A use-after-free in the Linux kernel allows local users to disclose kernel memory or crash the system through concurrent DRM ioctls. drm_setmaster_ioctl can free fpriv->master while drm_mode_getresources still dereferences that object in drm_lease_held without locking or a retained reference. Access to a DRM device node and winning the race are required; the demonstrated consequences are memory disclosure and a system crash.

The record

CVE
CVE-2022-1280
Published
Apr 13, 2022
Updated
Aug 2, 2024
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-416, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 13, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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?

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  1. Affected versionversion=kernel 5.17.x

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=kernel 5.17.x

Published CVSS scores

7.0Red Hat, Inc.CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
3.3NIST NVDAV:L/AC:M/Au:N/C:P/I:N/A:P
6.3NIST NVDCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/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 exploitPublished

Weakness, pattern, technique

CWE-416Use After Free
T1499.004Application or System Exploitation

Public exploit references

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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