6.9

CVE-2026-74368: wifi: ath12k: fix memory leak in ath12k_wifi7_dp_rx_h_verify_tkip_mic()

Received
AliasesUBUNTU-CVE-2026-74368DEBIAN-CVE-2026-74368
Published 15-08-2026Last modified 21-10-2026

Vulnerability summary

CVE-2026-74368 is a medium (CVSS 6.9) vulnerability in linux. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 6% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 6.9, adjacent network); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
6.9/10
010
Medium · v4.0 (OSV · Ubuntu), selected by version preference
EPSS score
0.17%
0%100%
Low · -0.03 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 11 · Related 11
OPENSUSE-SU-2026:22167-1SUSE-SU-2026:24386-1SUSE-SU-2026:24422-1SUSE-SU-2026:24437-1SUSE-SU-2026:24446-1USN-8887-1

Timeline

  1. 15-08-2026
    PublishedVulnerability first disclosed.
  2. 21-10-2026
    Last modifiedVulnerability information updated.

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

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

0.17%

Chance of exploitation in the next 30 days

Percentile

6%

Versus all other CVEs

30-day change

Decrease -0.03 pp

From 0.20% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: adjacent network, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu142 products
  • linuxAll versions (No fix recorded) | < 7.0.0-38.38
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 7.0.0-1014.14
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linuxAll versions (No fix recorded) | < 6.12.115-2 | < 7.1.5-1
Linux1 product
  • linux≥ 7f1d986da5c6abb75ffe4d0d325fc9b341c41a1c, < d960cd5dbcc6a01f49cc304b724f6b18a63a172d | ≥ 3abe15e756481c45f6acba3d476cb3ca4afc3b61, < 779ab501dc8f1148b3f10740a68335741bdc5ffe | ≥ 9a0dddfb30f120db3851627935851d262e4e7acb, < 55c6f05b667726d2da5fd011d646fb48ce5b6b9c | ≥ 9a0dddfb30f120db3851627935851d262e4e7acb, < 5187a92099778501f21af76ed6c8415d128e7298 | ≥ 9a0dddfb30f120db3851627935851d262e4e7acb, < 98d4f92ab6a1af2ea2ab590d7e2801b203110981 | 6ee653194ddb83674913fd2727b8ecfae0597ade | 50be1fb76556e80af9f5da80f28168b6c71bce58 | ≥ 6.6.88, < 6.6.160 | ≥ 6.12.24, < 6.12.114 | ≥ 6.13.12, < 6.14 | ≥ 6.14.3, < 6.15 | 6.15

3 vendors · 144 products

References

15 links
Show all 15 references