Bug 2482563 (CVE-2026-46152) - CVE-2026-46152 kernel: wifi: mac80211: drop stray 'static' from fast-RX rx_result
Summary: CVE-2026-46152 kernel: wifi: mac80211: drop stray 'static' from fast-RX rx_re...
Keywords:
Status: NEW
Alias: CVE-2026-46152
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 11:03 UTC by OSIDB Bzimport
Modified: 2026-07-15 16:23 UTC (History)
2 users (show)

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

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Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:26427 0 None None None 2026-06-16 18:55:37 UTC
Red Hat Product Errata RHSA-2026:26428 0 None None None 2026-06-16 18:29:43 UTC
Red Hat Product Errata RHSA-2026:27288 0 None None None 2026-06-19 23:22:03 UTC
Red Hat Product Errata RHSA-2026:27789 0 None None None 2026-06-22 08:29:12 UTC
Red Hat Product Errata RHSA-2026:36767 0 None None None 2026-07-08 14:51:34 UTC
Red Hat Product Errata RHSA-2026:38902 0 None None None 2026-07-13 12:50:43 UTC

Description OSIDB Bzimport 2026-05-28 11:03:26 UTC 
In the Linux kernel, the following vulnerability has been resolved:

wifi: mac80211: drop stray 'static' from fast-RX rx_result

ieee80211_invoke_fast_rx() is documented as safe for parallel RX, but
its per-invocation rx_result is declared static. Concurrent callers then
share one instance and can overwrite each other's result between
ieee80211_rx_mesh_data() and the switch on res.

That can make a packet that was queued or consumed by
ieee80211_rx_mesh_data() fall through into ieee80211_rx_8023(), or make
a packet that should continue return as queued.

Make res an automatic variable so each invocation keeps its own result.
Comment 1 Keith Grant 2026-05-28 16:09:34 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026052822-CVE-2026-46152-ec8a@gregkh/T
Comment 5 errata-xmlrpc 2026-06-16 18:29:42 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:26428 https://access.redhat.com/errata/RHSA-2026:26428
Comment 6 errata-xmlrpc 2026-06-16 18:55:36 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:26427 https://access.redhat.com/errata/RHSA-2026:26427
Comment 7 errata-xmlrpc 2026-06-19 23:22:02 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 8 errata-xmlrpc 2026-06-22 08:29:11 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 10 errata-xmlrpc 2026-07-08 14:51:33 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions

Via RHSA-2026:36767 https://access.redhat.com/errata/RHSA-2026:36767
Comment 12 errata-xmlrpc 2026-07-13 12:50:42 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:38902 https://access.redhat.com/errata/RHSA-2026:38902
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