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CVE-2026-98782

Linux: drm/mediatek: Fix ovl adaptor platform device leak

Linux LinuxOperating systems
Open in ThreatlineRecord JSON
CVSS
NoneNot scored
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.17%Chance of exploitation activity in the next 30 days, higher than 5% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in03fb1c657028cb9f189b400f3adb46e3ba676aa5Also 3d85bd738aba61df14dfaf8fe638e2172d8427bf, 629458b7e49559593823e351535294db17331be7 and 2 moreCVE List
Published18 Oct 2026Updated 21 Oct 2026CVE List

What fixes it

  • 03fb1c657028cb9f189b400f3adb46e3ba676aa5LinuxCVE List
  • 3d85bd738aba61df14dfaf8fe638e2172d8427bfLinuxCVE List
  • 629458b7e49559593823e351535294db17331be7LinuxCVE List
  • 8e3a350075b556f2fed4517705935bfee4529fb6LinuxCVE List
  • 048739be3e9cacae5301b68245668002fe6f0ce5LinuxCVE List

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

In the Linux kernel, the following vulnerability has been resolved:

drm/mediatek: Fix ovl adaptor platform device leak

mtk_drm_probe() creates an OVL adaptor platform device with platform_device_register_data() when the display pipeline requires the OVL adaptor.

If a later initialization step fails, the probe error path releases the DRM resources without unregistering the already registered OVL adaptor device. The normal remove path likewise leaves the device registered after the DRM driver is unbound.

Keep track of whether the OVL adaptor was successfully registered and unregister it on probe failure. Also recover the platform device from the stored DDP component device and unregister it during normal removal.

The issue was identified by a static analysis tool I developed and confirmed by manual review.

Text from CVE List

Affected versions 12

  • Linuxaffected: 0d9eee9118b77e51eeafc5bf4d008fac97035d56 before 03fb1c657028cb9f189b400f3adb46e3ba676aa5CVE List
  • Linuxaffected: 0d9eee9118b77e51eeafc5bf4d008fac97035d56 before 3d85bd738aba61df14dfaf8fe638e2172d8427bfCVE List
  • Linuxaffected: 0d9eee9118b77e51eeafc5bf4d008fac97035d56 before 629458b7e49559593823e351535294db17331be7CVE List
  • Linuxaffected: 0d9eee9118b77e51eeafc5bf4d008fac97035d56 before 8e3a350075b556f2fed4517705935bfee4529fb6CVE List
  • Linuxaffected: 0d9eee9118b77e51eeafc5bf4d008fac97035d56 before 048739be3e9cacae5301b68245668002fe6f0ce5CVE List
  • Linuxaffected: 6.4CVE List
  • Linuxunaffected: all versions before 6.4CVE List
  • Linuxunaffected: 6.6.160 through 6.6.*CVE List
  • Linuxunaffected: 6.12.113 through 6.12.*CVE List
  • Linuxunaffected: 6.18.56 through 6.18.*CVE List
  • Linuxunaffected: 7.2.10 through 7.2.*CVE List
  • Linuxunaffected: 7.3CVE List

References 5