CVE-2026-74368
Published: August 18, 2026Last modified: October 23, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: fix memory leak in ath12k_wifi7_dp_rx_h_verify_tkip_mic() In ath12k_wifi7_dp_rx_h_verify_tkip_mic(), the call to ath12k_dp_rx_check_nwifi_hdr_len_valid() may return false when the NWIFI header length is invalid, causing the function to abort early with -EINVAL. When this happens, the error propagates to ath12k_wifi7_dp_rx_h_defrag(), which clears first_frag by setting it to NULL. As a result, the corresponding MSDU is no longer referenced by the defragmentation path and is never freed. This leads to a memory leak for the affected MSDU on this error path. Proper cleanup is required to ensure the MSDU is released when header validation fails during TKIP MIC verification. Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.1.c5-00302-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.115823.3
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Not affected (6.1.33-r0) |
| 25 LTS | linux-lts | Vulnerable (6.12.103-r0) | |
| Stream | linux-lts | Fixed (6.18.58-r0) |
References
- https://git.kernel.org/stable/c/5187a92099778501f21af76ed6c8415d128e7298
- https://git.kernel.org/stable/c/55c6f05b667726d2da5fd011d646fb48ce5b6b9c
- https://git.kernel.org/stable/c/779ab501dc8f1148b3f10740a68335741bdc5ffe
- https://git.kernel.org/stable/c/98d4f92ab6a1af2ea2ab590d7e2801b203110981
- https://git.kernel.org/stable/c/d960cd5dbcc6a01f49cc304b724f6b18a63a172d