CVE-2022-50884

Local kernel crash via NULL driver field

Published Dec 30, 2025 · Updated Dec 30, 2025

NULL-pointer dereference in the Linux kernel allows local users to crash the kernel through DRM_IOCTL_VERSION on affected branches. drm_copy_field in drivers/gpu/drm/drm_ioctl.c passes an unset struct drm_driver string field to strlen while preparing version data for user space. Reachability requires low-privileged local access and a DRM driver that leaves a required field unset; successful triggering causes a kernel Oops and service interruption.

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 the Linux kernel allows local users to crash the kernel through DRM_IOCTL_VERSION on affected branches. drm_copy_field in drivers/gpu/drm/drm_ioctl.c passes an unset struct drm_driver string field to strlen while preparing version data for user space. Reachability requires low-privileged local access and a DRM driver that leaves a required field unset; successful triggering causes a kernel Oops and service interruption.

The record

CVE
CVE-2022-50884
Published
Dec 30, 2025
Updated
Dec 30, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 30, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 30, 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?

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  1. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <2d6708ea5c2033ff53267feff1876a717689989f
  2. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <6cf5e9356b2d856403ee480f987f3ea64dbf8d8c
  3. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <8052612b9d08048ebbebcb572894670b4ac07d2f
  4. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <c28a8082b25ce4ec94999e10a30c50d20bd44a25
  5. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <ca163e389f0ae096a4e1e19f0a95e60ed80b4e31
  6. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <cdde55f97298e5bb9af6d41c9303a3ec545a370e
  7. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <d213914386a0ede76a4549b41de30192fb92c595
  8. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <ee9885cd936aad88f84d0cf90bf9a70e83e42a97
  9. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <f6ee30407e883042482ad4ad30da5eaba47872ee

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <2d6708ea5c2033ff53267feff1876a717689989f; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <6cf5e9356b2d856403ee480f987f3ea64dbf8d8c; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <8052612b9d08048ebbebcb572894670b4ac07d2f; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <c28a8082b25ce4ec94999e10a30c50d20bd44a25; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <ca163e389f0ae096a4e1e19f0a95e60ed80b4e31; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <cdde55f97298e5bb9af6d41c9303a3ec545a370e; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <d213914386a0ede76a4549b41de30192fb92c595; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <ee9885cd936aad88f84d0cf90bf9a70e83e42a97; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <f6ee30407e883042482ad4ad30da5eaba47872ee

Published CVSS scores

5.5SUSECVSS: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 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

T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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