Bug 2546447 (CVE-2026-98346) - CVE-2026-98346 kernel: wifi: cfg80211: don't get the radio mask for netdev-less wdevs
Summary: CVE-2026-98346 kernel: wifi: cfg80211: don't get the radio mask for netdev-le...
Keywords:
Status: NEW
Alias: CVE-2026-98346
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-06 09:22 UTC by OSIDB Bzimport
Modified: 2026-10-10 13:57 UTC (History)
17 users (show)

Fixed In Version:
Clone Of:
Environment:
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Description OSIDB Bzimport 2026-10-06 09:22:17 UTC 
In the Linux kernel, the following vulnerability has been resolved:

wifi: cfg80211: don't get the radio mask for netdev-less wdevs

cfg80211_calculate_bi_data() calls rdev_get_radio_mask() with
wdev->netdev, which can be NULL and then crashes in mac80211.

To avoid that, invert the order of checks since wdev->netdev
is always valid for beaconing interfaces.
Comment 1 gkamathe 2026-10-10 13:51:05 UTC 
Upstream advisory:
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98346.mbox
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