CVE-2025-39991
In the Linux kernel, the following vulnerability has been resolved: wifi: ath11k: fix NULL dereference in ath11k_qmi_m3_load() If ab->fw.m3_data points to data, then fw pointer remains null. Further, if m3_mem is not allocated, then fw is dereferenced to be passed to ath11k_err function. Replace fw->size by m3_len. Found by Linux Verification Center (linuxtesting.org) with SVACE.
Affected versions
Linux kernel versions
6.7
and later are affected. Fixed in
6.12.51,
6.16.11,
6.17.1,
6.18
and their respective stable series.
References
The following references provide additional information about CVE-2025-39991 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/1f52119809b76d43759fc47da1cf708690b740a1
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PatchKernel patch commithttps://git.kernel.org/stable/c/3fd2ef2ae2b5c955584a3bee8e83ae7d7a98f782
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PatchKernel patch commithttps://git.kernel.org/stable/c/500fcc31e488d798937a23dbb1f62db46820c5b2
Frequently asked questions
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What is CVE-2025-39991?
CVE-2025-39991 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.7 onward and has been patched in 6.12.51, 6.16.11, 6.17.1 and others. CVE-2025-39991 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-2025-39991?
Yes — CVE-2025-39991 has been patched. Fixed versions include 6.12.51, 6.16.11, 6.17.1 and others. If you are running Linux kernel 6.7 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2025-39991 actively exploited?
No — CVE-2025-39991 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.