Bug 2404122 (CVE-2025-39991) - CVE-2025-39991 kernel: wifi: ath11k: fix NULL dereference in ath11k_qmi_m3_load()
Summary: CVE-2025-39991 kernel: wifi: ath11k: fix NULL dereference in ath11k_qmi_m3_lo...
Keywords:
Status: NEW
Alias: CVE-2025-39991
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-10-15 09:01 UTC by OSIDB Bzimport
Modified: 2025-10-16 10:16 UTC (History)
0 users

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Description OSIDB Bzimport 2025-10-15 09:01:46 UTC 
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.
Comment 1 Alexander B 2025-10-16 10:14:31 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025101527-CVE-2025-39991-6679@gregkh/T
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