drm/gma500: Fix null dereference in hdmi teardown
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.
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/02e4ff4941efb9bbb40d8d5b61efa1a4119b1ba7
- https://git.kernel.org/stable/c/0fc650fa475b50c1da8236c5e900b9460c7027bc
- https://git.kernel.org/stable/c/352e66900cde63f3dadb142364d3c35170bbaaff
- https://git.kernel.org/stable/c/4bbfd1b290857b9d14ea9d91562bde55ff2bc85e
- https://git.kernel.org/stable/c/6ffa6b5bc861a3ea9dfcdc007f002b4a347c24ba
- https://git.kernel.org/stable/c/70b0c11483d3b90b2d0f416026e475e084a77e62
- https://git.kernel.org/stable/c/e15de80737d444ed743b1c60ced4a3a97913169b
- https://git.kernel.org/stable/c/f800f7054d2cf28b51296c7c575da27c29e3859b
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/40xxx/CVE-2025-40011.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-40011