Bug 2555114 (CVE-2026-98700) - CVE-2026-98700 kernel: wifi: mac80211: set info->band for 802.3 encap offload frames
Summary: CVE-2026-98700 kernel: wifi: mac80211: set info->band for 802.3 encap offload...
Keywords:
Status: NEW
Alias: CVE-2026-98700
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: 2026-10-18 15:55 UTC by OSIDB Bzimport
Modified: 2026-10-22 05:13 UTC (History)
17 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-10-18 15:55:14 UTC 
In the Linux kernel, the following vulnerability has been resolved:

wifi: mac80211: set info->band for 802.3 encap offload frames

Unlike the 802.11 TX paths, ieee80211_8023_xmit() does not set
info->band from the channel context on non-MLD interfaces. It stays at
0, so ieee80211_get_tx_rates() uses the wrong band for these frames.

Set it the same way as ieee80211_build_hdr(): drop the frame if there is
no channel context, and leave the band at 0 on MLD interfaces.
Comment 1 Mauro Matteo Cascella 2026-10-22 05:06:20 UTC 
Upstream advisory:
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98700.mbox
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