CVE-2026-31779: wifi: iwlwifi: mvm: fix potential out-of-bounds read in iwl_mvm_nd_match_info_handler()
In the Linux kernel, the following vulnerability has been resolved:
wifi: iwlwifi: mvm: fix potential out-of-bounds read in iwlmvmndmatchinfohandler()
The memcpy function assumes the dynamic array notif->matches is at least as large as the number of bytes to copy. Otherwise, results->matches may contain unwanted data. To guarantee safety, extend the validation in one of the checks to ensure sufficient packet length.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-31779?
CVE-2026-31779 is classified with medium severity due to the potential for out-of-bounds read, which could lead to information disclosure.
How do I fix CVE-2026-31779?
To fix CVE-2026-31779, update your Linux kernel to the latest stable version that includes the patch for the vulnerability.
What software is affected by CVE-2026-31779?
CVE-2026-31779 affects the Linux kernel's iwlwifi (mvm) driver.
What are the potential impacts of CVE-2026-31779?
The potential impact of CVE-2026-31779 includes information leakage due to out-of-bounds memory access.
When was CVE-2026-31779 published?
CVE-2026-31779 was published on October 03, 2026.