CVE-2026-98700 PUBLISHED

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

Assigner: Linux
Reserved: 25.09.2026 Published: 18.10.2026 Updated: 18.10.2026

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.

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from 50ff477a8639fa1fbbeecb5a6f2f8b6c5557ecec to 93c1b247224a32f546b616a8fe87b9bab20f0a7f (excl.)
  • affected from 50ff477a8639fa1fbbeecb5a6f2f8b6c5557ecec to 9cedbfde1450028f530e9af950f53491fcaebfeb (excl.)
  • affected from 50ff477a8639fa1fbbeecb5a6f2f8b6c5557ecec to 2d9c5525bbc1a548cdc9c4def3cd7fbfc7c66b5b (excl.)
  • affected from 50ff477a8639fa1fbbeecb5a6f2f8b6c5557ecec to 4febc02cd02f021f2b6d0768332be643ef14a12d (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 5.7 is affected
  • unaffected from 0 to 5.7 (excl.)
  • unaffected from 6.12.113 to 6.12.* (incl.)
  • unaffected from 6.18.56 to 6.18.* (incl.)
  • unaffected from 7.2.10 to 7.2.* (incl.)
  • unaffected from 7.3-rc6 to * (incl.)

References