CVE-2026-74368

wifi: ath12k: fix memory leak in ath12k_wifi7_dp_rx_h_verify_tkip_mic()

State: Published
Severity: Not scored
Published: Aug 15, 2026
Updated: Oct 21, 2026
Reserved: Aug 15, 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

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	7f1d986da5c6abb75ffe4d0d325fc9b341c41a1c to before d960cd5dbcc6a01f49cc304b724f6b18a63a172dAffected 3abe15e756481c45f6acba3d476cb3ca4afc3b61 to before 779ab501dc8f1148b3f10740a68335741bdc5ffeAffected 9a0dddfb30f120db3851627935851d262e4e7acb to before 55c6f05b667726d2da5fd011d646fb48ce5b6b9cAffected 9a0dddfb30f120db3851627935851d262e4e7acb to before 5187a92099778501f21af76ed6c8415d128e7298Affected 9a0dddfb30f120db3851627935851d262e4e7acb to before 98d4f92ab6a1af2ea2ab590d7e2801b203110981Affected 6ee653194ddb83674913fd2727b8ecfae0597adeAffected 50be1fb76556e80af9f5da80f28168b6c71bce58Affected 6.6.88 to before 6.6.160Affected 6.12.24 to before 6.12.114Affected 6.13.12 to before 6.14Affected 6.14.3 to before 6.15Affected
LinuxLinux	6.15Affected before 6.15Not affected 6.6.160 through 6.6.Not affected 6.12.114 through 6.12.Not affected 6.18.57 through 6.18.Not affected 7.1.5 through 7.1.Not affected 7.2 and laterNot affected

Product

Versions

LinuxLinux

7f1d986da5c6abb75ffe4d0d325fc9b341c41a1c to before d960cd5dbcc6a01f49cc304b724f6b18a63a172dAffected
3abe15e756481c45f6acba3d476cb3ca4afc3b61 to before 779ab501dc8f1148b3f10740a68335741bdc5ffeAffected
9a0dddfb30f120db3851627935851d262e4e7acb to before 55c6f05b667726d2da5fd011d646fb48ce5b6b9cAffected
9a0dddfb30f120db3851627935851d262e4e7acb to before 5187a92099778501f21af76ed6c8415d128e7298Affected
9a0dddfb30f120db3851627935851d262e4e7acb to before 98d4f92ab6a1af2ea2ab590d7e2801b203110981Affected
6ee653194ddb83674913fd2727b8ecfae0597adeAffected
50be1fb76556e80af9f5da80f28168b6c71bce58Affected
6.6.88 to before 6.6.160Affected
6.12.24 to before 6.12.114Affected
6.13.12 to before 6.14Affected
6.14.3 to before 6.15Affected

LinuxLinux

6.15Affected
before 6.15Not affected
6.6.160 through 6.6.*Not affected
6.12.114 through 6.12.*Not affected
6.18.57 through 6.18.*Not affected
7.1.5 through 7.1.*Not affected
7.2 and laterNot affected

References

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