CVE-2025-37944

/// Technical description

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

wifi: ath12k: Fix invalid entry fetch in ath12k_dp_mon_srng_process

Currently, ath12k_dp_mon_srng_process uses ath12k_hal_srng_src_get_next_entry

to fetch the next entry from the destination ring. This is incorrect because

ath12k_hal_srng_src_get_next_entry is intended for source rings, not destination

rings. This leads to invalid entry fetches, causing potential data corruption or

crashes due to accessing incorrect memory locations. This happens because the

source ring and destination ring have different handling mechanisms and using

the wrong function results in incorrect pointer arithmetic and ring management.

To fix this issue, replace the call to ath12k_hal_srng_src_get_next_entry with

ath12k_hal_srng_dst_get_next_entry in ath12k_dp_mon_srng_process. This ensures

that the correct function is used for fetching entries from the destination

ring, preventing invalid memory accesses.

Tested-on: QCN9274 hw2.0 PCI WL

/// 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