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 WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1 Tested-on: WCN7850 hw2.0 WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
Affected products
linux: linux kernel
References5
- git.kernel.org/stable/c/298f0aea5cb32b5038f991f5db201a0fcbb9a31b Patch
- git.kernel.org/stable/c/2c512f2eadabb1e80816116894ffaf7d802a944e Patch
- git.kernel.org/stable/c/63fdc4509bcf483e79548de6bc08bf3c8e504bb3 Patch
- git.kernel.org/stable/c/ab7edf42ce800eb34d2f73dd7271b826661a06a5 Patch
- git.kernel.org/stable/c/b6a3b2b2cead103089d3bb7a57d8209bdfa5399d Patch
Metrics
- CVSS 3.1
-
7.8
HIGH
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 18 · as of 7 November 2026
- CWE
- CWE-787
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