CVE-2026-74368
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 versions
Linux kernel versions
6.6.88,
6.12.24,
6.13.12,
6.14.3,
6.15
and later are affected. Fixed in
7.1.5,
7.2
and their respective stable series.
References
2 totalFrequently asked questions
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What is CVE-2026-74368?
CVE-2026-74368 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.6.88 onward and has been patched in 7.1.5 and 7.2. CVE-2026-74368 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-74368?
Yes. CVE-2026-74368 has been patched. Fixed versions include 7.1.5 and 7.2. If you are running Linux kernel 6.6.88 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-74368 actively exploited?
No. CVE-2026-74368 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.