CVE-2024-57809

/// Technical description

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

PCI: imx6: Fix suspend/resume support on i.MX6QDL

The suspend/resume functionality is currently broken on the i.MX6QDL

platform, as documented in the NXP errata (ERR005723):

https://www.nxp.com/docs/en/errata/IMX6DQCE.pdf

This patch addresses the issue by sharing most of the suspend/resume

sequences used by other i.MX devices, while avoiding modifications to

critical registers that disrupt the PCIe functionality. It targets the

same problem as the following downstream commit:

https://github.com/nxp-imx/linux-imx/commit/4e92355e1f79d225ea842511fcfd42b343b32995

Unlike the downstream commit, this patch also resets the connected PCIe

device if possible. Without this reset, certain drivers, such as ath10k

or iwlwifi, will crash on resume. The device reset is also done by the

driver on other i.MX platforms, making this patch consistent with

existing practices.

Upon resuming, the kernel will hang and display an err

/// Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

/// References