Description
In the Linux kernel, the following vulnerability has been resolved:

wifi: mac80211: don't start a ROC while scanning

The ROC work can be pending when a scan starts (which requires
ROC list to be empty, but that's possible), and then a new ROC
can be added to the list and the work will pick it up.

Avoid starting that ROC if a scan made it between things, as
otherwise we'll hit a warning later:

WARNING: net/mac80211/offchannel.c:404 at ieee80211_start_next_roc+0x256/0x2d0
Workqueue: events_unbound cfg80211_wiphy_work
Call Trace:
__ieee80211_scan_completed+0x4fd/0xe40 net/mac80211/scan.c:537
ieee80211_scan_work+0x472/0x1ff0 net/mac80211/scan.c:1193
cfg80211_wiphy_work+0x410/0x570 net/wireless/core.c:513
Published: 2026-10-06
Score: 5.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Potential Warning
Action: Patch
AI Analysis

Impact

Based on the description, it is inferred that a Receiver‑Only‑Channel operation may begin while a scan is in progress. The kernel logic can queue a new ROC after the scan starts, producing a warning message in the kernel logs once the scan completes. This race condition could destabilize the system, though the public description does not demonstrate a crash.

Affected Systems

All Linux kernel builds that include the mac80211 wireless stack are potentially vulnerable, since the fix was applied in upstream kernel source. No specific version numbers are listed, so any kernel version prior to the upstream patch may be affected.

Risk and Exploitability

The EPSS score of less than 1% indicates a low likelihood of exploitation. The flaw is not in the CISA KEV catalog and no public exploit exists. Based on the description it is inferred that exploitation would require initiating a wireless scan and then a ROC request, which could be done locally or via a compromised wireless interface. The CVSS score of 5.5 indicates moderate impact. With no available exploit, the risk remains low to moderate but remediation is advised.

Generated by OpenCVE AI on October 11, 2026 at 04:34 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Update the kernel to a version that contains the upstream patch fixing the ROC handling bug (see commit 58b806f699052c572dec6cab2c376f884f27e98f).
  • If a newer kernel is not available, rebuild the kernel with the specific commit(s) that implement the fix and install the patched kernel image.
  • Limit access to wireless management interfaces by configuring proper authentication or firewall rules to prevent untrusted devices from initiating scans or ROC commands as a temporary safeguard.

Generated by OpenCVE AI on October 11, 2026 at 04:34 UTC.

Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-4850-1 linux-6.12 security update
Debian DSA Debian DSA DSA-6568-1 linux security update
History

Sun, 11 Oct 2026 03:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-667

Sun, 11 Oct 2026 00:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-366
References
Metrics threat_severity

None

cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Low


Tue, 06 Oct 2026 20:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-667

Tue, 06 Oct 2026 09:00:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: don't start a ROC while scanning The ROC work can be pending when a scan starts (which requires ROC list to be empty, but that's possible), and then a new ROC can be added to the list and the work will pick it up. Avoid starting that ROC if a scan made it between things, as otherwise we'll hit a warning later: WARNING: net/mac80211/offchannel.c:404 at ieee80211_start_next_roc+0x256/0x2d0 Workqueue: events_unbound cfg80211_wiphy_work Call Trace: __ieee80211_scan_completed+0x4fd/0xe40 net/mac80211/scan.c:537 ieee80211_scan_work+0x472/0x1ff0 net/mac80211/scan.c:1193 cfg80211_wiphy_work+0x410/0x570 net/wireless/core.c:513
Title wifi: mac80211: don't start a ROC while scanning
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Subscriptions

Linux Linux Kernel
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-10-19T09:17:48.362Z

Reserved: 2026-09-25T10:25:14.342Z

Link: CVE-2026-98337

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-06T09:18:26.303

Modified: 2026-10-19T10:18:35.953

Link: CVE-2026-98337

cve-icon Redhat

Severity : Low

Publid Date: 2026-10-06T00:00:00Z

Links: CVE-2026-98337 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-10-11T04:45:17Z

Weaknesses
  • CWE-366

    Race Condition within a Thread