CVE-2026-31779
Published: May 2, 2026Last modified: May 2, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: fix potential out-of-bounds read in iwl_mvm_nd_match_info_handler() 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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 8.1 |
| Attack Vector | ADJACENT_NETWORK |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.168-r0) |
| 25 LTS | linux-lts | Fixed (6.12.81-r0) | |
| Stream | linux-lts | Fixed (6.12.85-r0) |
References
- https://git.kernel.org/stable/c/744fabc338e87b95c4d1ff7c95bc8c0f834c6d99
- https://git.kernel.org/stable/c/ca0e9491b98ca4c5b44204b0b3dd8062a3b5fba2
- https://git.kernel.org/stable/c/dd90880eb5ec5442b37eb2b95688f4a63f4883e3
- https://git.kernel.org/stable/c/e67d8c626ace80b0fa2b48c8ec0a46b508c93442
- https://git.kernel.org/stable/c/f6abac936a0dfd31d6c3e49205ec0ee75a8f887f
- https://git.kernel.org/stable/c/ffbed27ba15ef80d1c622eeedbfef03e501ae134