2405137 – (CVE-2025-40011) CVE-2025-40011 kernel: drm/gma500: Fix null dereference in hdmi teardown

Bug 2405137 (CVE-2025-40011) - CVE-2025-40011 kernel: drm/gma500: Fix null dereference in hdmi teardown

Summary: CVE-2025-40011 kernel: drm/gma500: Fix null dereference in hdmi teardown

Keywords:
Status:	NEW
Alias:	CVE-2025-40011
Product:	Security Response
Classification:	Other
Component:	vulnerability
Sub Component:
Version:	unspecified
Hardware:	All
OS:	Linux
Priority:	medium
Severity:	medium
Target Milestone:	---
Assignee:	Product Security
QA Contact:
Docs Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+	depends on / blocked

Reported:	2025-10-20 17:24 UTC by OSIDB Bzimport
Modified:	2026-06-29 18:57 UTC (History)
CC List:	2 users (show)
Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments	(Terms of Use)

Description OSIDB Bzimport 2025-10-20 17:24:04 UTC

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

drm/gma500: Fix null dereference in hdmi teardown

pci_set_drvdata sets the value of pdev->driver_data to NULL,
after which the driver_data obtained from the same dev is
dereferenced in oaktrail_hdmi_i2c_exit, and the i2c_dev is
extracted from it. To prevent this, swap these calls.

Found by Linux Verification Center (linuxtesting.org) with Svacer.

Comment 1 Jon Moroney 2025-10-20 17:36:57 UTC Comment hidden (spam)

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