CVE-2024-56580

/// Technical description

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

media: qcom: camss: fix error path on configuration of power domains

There is a chance to meet runtime issues during configuration of CAMSS

power domains, because on the error path dev_pm_domain_detach() is

unexpectedly called with NULL or error pointer.

One of the simplest ways to reproduce the problem is to probe CAMSS

driver before registration of CAMSS power domains, for instance if

a platform CAMCC driver is simply not built.

Warning backtrace example:

Unable to handle kernel NULL pointer dereference at virtual address 00000000000001a2

<snip>

pc : dev_pm_domain_detach+0x8/0x48

lr : camss_probe+0x374/0x9c0

<snip>

Call trace:

dev_pm_domain_detach+0x8/0x48

platform_probe+0x70/0xf0

really_probe+0xc4/0x2a8

__driver_probe_device+0x80/0x140

driver_probe_device+0x48/0x170

__device_attach_driver+0xc0/0x148

bus_for_each_drv+0x88/0xf0

__device_attach+0x

/// 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