Bug 2482645 (CVE-2026-46166) - CVE-2026-46166 kernel: wifi: mac80211: use safe list iteration in radar detect work
Summary: CVE-2026-46166 kernel: wifi: mac80211: use safe list iteration in radar detec...
Keywords:
Status: NEW
Alias: CVE-2026-46166
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-28 11:07 UTC by OSIDB Bzimport
Modified: 2026-07-15 16:23 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:27288 0 None None None 2026-06-19 23:22:06 UTC
Red Hat Product Errata RHSA-2026:27708 0 None None None 2026-06-22 05:56:09 UTC
Red Hat Product Errata RHSA-2026:27789 0 None None None 2026-06-22 08:29:06 UTC
Red Hat Product Errata RHSA-2026:33215 0 None None None 2026-06-29 19:24:02 UTC

Description OSIDB Bzimport 2026-05-28 11:07:26 UTC 
In the Linux kernel, the following vulnerability has been resolved:

wifi: mac80211: use safe list iteration in radar detect work

The call to ieee80211_dfs_cac_cancel can cause the iterated chanctx to
be freed and removed from the list. Guard against this to avoid a
slab-use-after-free error.
Comment 1 Keith Grant 2026-05-28 15:21:03 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026052826-CVE-2026-46166-77a1@gregkh/T
Comment 9 errata-xmlrpc 2026-06-19 23:22:05 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:27288 https://access.redhat.com/errata/RHSA-2026:27288
Comment 10 errata-xmlrpc 2026-06-22 05:56:08 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:27708 https://access.redhat.com/errata/RHSA-2026:27708
Comment 11 errata-xmlrpc 2026-06-22 08:29:06 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:27789 https://access.redhat.com/errata/RHSA-2026:27789
Comment 13 errata-xmlrpc 2026-06-29 19:24:01 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:33215 https://access.redhat.com/errata/RHSA-2026:33215
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