CVE-2024-38606

/// Technical description

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

crypto: qat - validate slices count returned by FW

The function adf_send_admin_tl_start() enables the telemetry (TL)

feature on a QAT device by sending the ICP_QAT_FW_TL_START message to

the firmware. This triggers the FW to start writing TL data to a DMA

buffer in memory and returns an array containing the number of

accelerators of each type (slices) supported by this HW.

The pointer to this array is stored in the adf_tl_hw_data data

structure called slice_cnt.

The array slice_cnt is then used in the function tl_print_dev_data()

to report in debugfs only statistics about the supported accelerators.

An incorrect value of the elements in slice_cnt might lead to an out

of bounds memory read.

At the moment, there isn't an implementation of FW that returns a wrong

value, but for robustness validate the slice count array returned by FW.

/// 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