CVE-2024-44967

Summary

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

drm/mgag200: Bind I2C lifetime to DRM device

Managed cleanup with devm_add_action_or_reset() will release the I2C adapter when the underlying Linux device goes away. But the connector still refers to it, so this cleanup leaves behind a stale pointer in struct drm_connector.ddc.

Bind the lifetime of the I2C adapter to the connector's lifetime by using DRM's managed release. When the DRM device goes away (after the Linux device) DRM will first clean up the connector and then clean up the I2C adapter.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxb279df242972ae816a75cf1cc732af836f999100 < 55a6916db77102765b22855d3a0add4751988b7caffected
LinuxLinuxb279df242972ae816a75cf1cc732af836f999100 < 81d34df843620e902dd04aa9205c875833d61c17affected
LinuxLinuxb279df242972ae816a75cf1cc732af836f999100 < 9d96b91e03cba9dfcb4ac370c93af4dbc47d5191affected
LinuxLinuxb279df242972ae816a75cf1cc732af836f999100 < eb1ae34e48a09b7a1179c579aed042b032e408f4affected
LinuxLinux6.0affected
LinuxLinux0 < 6.0unaffected
LinuxLinux6.1.105 <= 6.1.*unaffected
LinuxLinux6.6.46 <= 6.6.*unaffected
LinuxLinux6.10.5 <= 6.10.*unaffected
LinuxLinux6.11 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

CVE Program Container

Additional References

References