CVE-2026-90366

CVE CVE-2026-90366EUVD EUVD-2026-82027Published 2026-09-17T16:09:08.000Z

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7996: reserve space for the CSA-abort countdown TLV When a CSA countdown is active, mt7996_mcu_beacon_cntdwn() emits two bss_bcn_cntdwn_tlv entries (the CSA countdown and the CCA-abort BCC), but MT7996_BEACON_UPDATE_SIZE only reserved one. With MBSSID enabled and a near-maximum beacon template the extra 8 bytes could push the offload command past MT7996_MAX_BSS_OFFLOAD_SIZE and trigger skb_over_panic(). Reserve room for both countdown TLVs.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux 98686cd21624c75a043e96812beadddf4f6f48e5 <bc1d694a1ffe0062c3adf0db1d64ad54454398ec; patch: 6.12.110; 98686cd21624c75a043e96812beadddf4f6f48e5 <45d8896e4cffffb2c6554ccbec6efe7a0d53166f; 98686cd21624c75a043e96812beadddf4f6f48e5 <1a51aff0e048dc5b8252d65808b79939c942d6ec; 6.2; patch: 0; patch: 7.3-rc1; 98686cd21624c75a043e96812beadddf4f6f48e5 <1d348f96623ec20d700af7d4dfc00a74da6238ac; patch: 6.6.157; patch: 7.2.6; 98686cd21624c75a043e96812beadddf4f6f48e5 <50c66bab321140c49aa2ed779a3ec9d2f085b458; patch: 6.18.52

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.

Linux — Linux

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