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

wifi: ath12k: fix possible out-of-bound read in ath12k_htt_pull_ppdu_stats()

len is extracted from HTT message and could be an unexpected value in
case errors happen, so add validation before using to avoid possible
out-of-bound read in the following message iteration and parsing.

The same issue also applies to ppdu_info->ppdu_stats.common.num_users,
so validate it before using too.

These are found during code review.

Compile test only.

References

• https://nvd.nist.gov/vuln/detail/CVE-2023-52827
• https://git.kernel.org/stable/c/1bc44a505a229bb1dd4957e11aa594edeea3690e
• https://git.kernel.org/stable/c/79527c21a3ce04cffc35ea54f74ee087e532be57
• https://git.kernel.org/stable/c/c9e44111da221246efb2e623ae1be40a5cf6542c