CVE-2022-50750

Kernel memory corruption via dangling panel entry

Published Dec 24, 2025 · Updated Dec 24, 2025

Use-after-free in the ST7701 panel driver in Linux allows local users to corrupt kernel memory through DRM panel lookup. When mipi_dsi_attach fails after drm_panel_add, the probe path leaves a freed drm_panel object linked on panel_list, and later of_drm_find_panel access dereferences it. Reachability requires an ST7701 MIPI-DSI configuration, an attach failure, and local low-privileged DRM access; exploitation can cause a kernel panic or enable kernel read, write, and control-flow primitives.

CVSS severity7.8
High
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in the ST7701 panel driver in Linux allows local users to corrupt kernel memory through DRM panel lookup. When mipi_dsi_attach fails after drm_panel_add, the probe path leaves a freed drm_panel object linked on panel_list, and later of_drm_find_panel access dereferences it. Reachability requires an ST7701 MIPI-DSI configuration, an attach failure, and local low-privileged DRM access; exploitation can cause a kernel panic or enable kernel read, write, and control-flow primitives.

The record

CVE
CVE-2022-50750
Published
Dec 24, 2025
Updated
Dec 24, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 24, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 24, 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=5.1
  2. Affected versionversion=849b2e3ff9698226ab91e034d52cbb1da92a5b4c <0b7c47b7f358f932159a9d5beec9616ef8a0c6b4
  3. Affected versionversion=849b2e3ff9698226ab91e034d52cbb1da92a5b4c <13fc167e1645c43c631d7752d98e377f0e4cbb15
  4. Affected versionversion=849b2e3ff9698226ab91e034d52cbb1da92a5b4c <23fddf78eac8d79c56f93ab69b6c47a0816967c9
  5. Affected versionversion=849b2e3ff9698226ab91e034d52cbb1da92a5b4c <465611e812587e72bf235034edce0e51be3d6809
  6. Affected versionversion=849b2e3ff9698226ab91e034d52cbb1da92a5b4c <576828e59a0e03bbc763872912b04f3e3a1b3311
  7. Affected versionversion=849b2e3ff9698226ab91e034d52cbb1da92a5b4c <c62102165dd79284d42383d2f7ed17301bd8e629

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.1; version=849b2e3ff9698226ab91e034d52cbb1da92a5b4c <0b7c47b7f358f932159a9d5beec9616ef8a0c6b4; version=849b2e3ff9698226ab91e034d52cbb1da92a5b4c <13fc167e1645c43c631d7752d98e377f0e4cbb15; version=849b2e3ff9698226ab91e034d52cbb1da92a5b4c <23fddf78eac8d79c56f93ab69b6c47a0816967c9; version=849b2e3ff9698226ab91e034d52cbb1da92a5b4c <465611e812587e72bf235034edce0e51be3d6809; version=849b2e3ff9698226ab91e034d52cbb1da92a5b4c <576828e59a0e03bbc763872912b04f3e3a1b3311; version=849b2e3ff9698226ab91e034d52cbb1da92a5b4c <c62102165dd79284d42383d2f7ed17301bd8e629

Published CVSS scores

7.8LinuxCVSS: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

T1068Exploitation for Privilege Escalation

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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