CVE-2026-74368
wifi: ath12k: fix memory leak in ath12k_wifi7_dp_rx_h_verify_tkip_mic()
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
INFO
Published Date :
Aug. 15, 2026, 6:22 a.m.
Last Modified :
Aug. 15, 2026, 6:22 a.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products
The following products are affected by CVE-2026-74368
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Apply the kernel patch to fix the memory leak.
- Ensure proper cleanup when header validation fails.
- Release MSDU when TKIP MIC verification fails.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-74368.
| URL | Resource |
|---|---|
| https://git.kernel.org/stable/c/5187a92099778501f21af76ed6c8415d128e7298 | |
| https://git.kernel.org/stable/c/98d4f92ab6a1af2ea2ab590d7e2801b203110981 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-74368 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-74368
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-74368 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-74368 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 15, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '9a0dddfb30f120db3851627935851d262e4e7acb', 'lessThan': '5187a92099778501f21af76ed6c8415d128e7298', 'versionType': 'git'}, {'status': 'affected', 'version': '9a0dddfb30f120db3851627935851d262e4e7acb', 'lessThan': '98d4f92ab6a1af2ea2ab590d7e2801b203110981', 'versionType': 'git'}, {'status': 'affected', 'version': '7f1d986da5c6abb75ffe4d0d325fc9b341c41a1c', 'versionType': 'git'}, {'status': 'affected', 'version': '3abe15e756481c45f6acba3d476cb3ca4afc3b61', 'versionType': 'git'}, {'status': 'affected', 'version': '6ee653194ddb83674913fd2727b8ecfae0597ade', 'versionType': 'git'}, {'status': 'affected', 'version': '50be1fb76556e80af9f5da80f28168b6c71bce58', 'versionType': 'git'}, {'status': 'affected', 'version': '6.6.88', 'lessThan': '6.7', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.12.24', 'lessThan': '6.13', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.13.12', 'lessThan': '6.14', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.14.3', 'lessThan': '6.15', 'versionType': 'semver'}], 'programFiles': ['drivers/net/wireless/ath/ath12k/wifi7/dp_rx.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.15'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.15', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/net/wireless/ath/ath12k/wifi7/dp_rx.c'], 'defaultStatus': 'affected'}] Added 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 Added Reference https://git.kernel.org/stable/c/5187a92099778501f21af76ed6c8415d128e7298 Added Reference https://git.kernel.org/stable/c/98d4f92ab6a1af2ea2ab590d7e2801b203110981