CVE-2025-38013 Details
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: Set n_channels after allocating struct cfg80211_scan_request Make sure that n_channels is set after allocating the struct cfg80211_registered_device::int_scan_req member. Seen with syzkaller: UBSAN: array-index-out-of-bounds in net/mac80211/scan.c:1208:5 index 0 is out of range for type 'struct ieee80211_channel *[] __counted_by(n_channels)' (aka 'struct ieee80211_channel *[]') This was missed in the initial conversions because I failed to locate the allocation likely due to the "sizeof(void *)" not matching the "channels" array type.
A vulnerability in the Linux kernel's mac80211 component has been addressed. The issue involved improper handling of the number of channels in the scan request process. Specifically, the number of channels was not correctly set after allocating the scan request structure, leading to an out-of-bounds array access. This vulnerability was identified using syzkaller, which reported a Undefined Behavior Sanitizer (UBSAN) error indicating that the index was out of range for the expected channel array type.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/07c737d9ab02c07b562aefcca16aa95077368e24 | kernel.org | Patch |
| https://git.kernel.org/stable/c/82bbe02b2500ef0a62053fe2eb84773fe31c5a0a | kernel.org | Patch |
| https://git.kernel.org/stable/c/e3192e999a0d05ea0ba2c59c09afaf0b8ee70b81 | kernel.org | Patch |
| https://git.kernel.org/stable/c/fde33ab3c052a302ee8a0b739094b88ceae4dd67 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-129 | Improper Validation of Array Index | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 6.6, < 6.6.92 >= 6.7, < 6.12.30 >= 6.13, < 6.14.8 6.15 rc1 6.15 rc2 6.15 rc3 6.15 rc4 6.15 rc5 6.15 rc6 |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| Nov 17, 2025 | Initial Analysis | [email protected] |
| Jun 18, 2025 | New CVE Received | kernel.org |