VulnerabilityPublished 24 Sep 2026Updated 30 Oct 2026

CVE-2026-93804: Linux kernel · wifi: mac80211: ibss: wait for in-flight TX on disconnect

Source GCVE Database

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Authoritative record:CVE-2026-93804· Medium

Not known to be exploited · fixed in d0e69d9afa59b93c30294eba89b1f15f69e91105 : update Linux kernel when convenient.

Data as of 30 Oct 2026, 17:53 UTC

Severity

Medium

Rated Medium by Threat Radar's AI analysis · CVSS not yet scored by NVD

Thin evidence

One scorer or none

Patch: Available – fixed in d0e69d9afa59b93c30294eba89b1f15f69e91105, b3451e6971248250312ad32dd7f63cc9f0a925f5, 47185b5dbac264e7eb48c6d44368be6bfec17085 +2

Exploitation evidence

Disclosed: evidence found.
CVE published 24 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

ghsa-f3pr-77p4-f6r5

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 86a2ea4134b48f6371103cfceb521bf2d2bf76cd, < d0e69d9afa59b93c30294eba89b1f15f69e91105	Fixed in d0e69d9afa59b93c30294eba89b1f15f69e91105
LinuxLinux	Affected ≥ 86a2ea4134b48f6371103cfceb521bf2d2bf76cd, < b3451e6971248250312ad32dd7f63cc9f0a925f5	Fixed in b3451e6971248250312ad32dd7f63cc9f0a925f5
LinuxLinux	Affected ≥ 86a2ea4134b48f6371103cfceb521bf2d2bf76cd, < 47185b5dbac264e7eb48c6d44368be6bfec17085	Fixed in 47185b5dbac264e7eb48c6d44368be6bfec17085
LinuxLinux	Affected ≥ 86a2ea4134b48f6371103cfceb521bf2d2bf76cd, < 20a3fb5e1a95caa34896853ca17a50d21c754969	Fixed in 20a3fb5e1a95caa34896853ca17a50d21c754969
LinuxLinux	Affected ≥ 86a2ea4134b48f6371103cfceb521bf2d2bf76cd, < 8e4a07ed82bae5d13525770880dc6dfd27f9bccd	Fixed in 8e4a07ed82bae5d13525770880dc6dfd27f9bccd
LinuxLinux	Affected =3.3	Fixed in–

AI-suggested

A fix has been implemented in the Linux kernel that reorders operations during IBSS disconnect to prevent the race condition. Users should apply the official kernel updates that include this fix. Since this is a kernel-level issue, updating to the patched kernel version is the recommended remediation.

Description

A race condition vulnerability in the Linux kernel's mac80211 IBSS disconnect process could cause transmission attempts to the driver after it has been told to leave the IBSS, potentially confusing drivers such as iwlwifi and causing them to use invalid queues. The issue arises from the timing of netif_carrier_off() and station flushing, allowing in-flight transmissions during disconnect.

References

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