CVE-2026-74368

Summary

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

Affected Software

VendorProductVersion RangeStatus
LinuxLinux9a0dddfb30f120db3851627935851d262e4e7acb < 5187a92099778501f21af76ed6c8415d128e7298affected
LinuxLinux9a0dddfb30f120db3851627935851d262e4e7acb < 98d4f92ab6a1af2ea2ab590d7e2801b203110981affected
LinuxLinux7f1d986da5c6abb75ffe4d0d325fc9b341c41a1caffected
LinuxLinux3abe15e756481c45f6acba3d476cb3ca4afc3b61affected
LinuxLinux6ee653194ddb83674913fd2727b8ecfae0597adeaffected
LinuxLinux50be1fb76556e80af9f5da80f28168b6c71bce58affected
LinuxLinux6.6.88 < 6.7affected
LinuxLinux6.12.24 < 6.13affected
LinuxLinux6.13.12 < 6.14affected
LinuxLinux6.14.3 < 6.15affected
LinuxLinux6.15affected
LinuxLinux0 < 6.15unaffected
LinuxLinux7.1.5 <= 7.1.*unaffected
LinuxLinux7.2 <= *unaffected

Weaknesses

References