Riskcovery

CVE-2024-26683

wifi: cfg80211: detect stuck ECSA element in probe resp

State
Published
Severity
Not scored
Published
Apr 2, 2024
Updated
May 11, 2026
Reserved
Feb 19, 2024

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

wifi: cfg80211: detect stuck ECSA element in probe resp

We recently added some validation that we don't try to connect to an AP that is currently in a channel switch process, since that might want the channel to be quiet or we might not be able to connect in time to hear the switching in a beacon. This was in commit c09c4f31998b ("wifi: mac80211: don't connect to an AP while it's in a CSA process").

However, we promptly got a report that this caused new connection failures, and it turns out that the AP that we now cannot connect to is permanently advertising an extended channel switch announcement, even with quiet. The AP in question was an Asus RT-AC53, with firmware 3.0.0.4.380_10760-g21a5898.

As a first step, attempt to detect that we're dealing with such a situation, so mac80211 can use this later.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • c09c4f31998bac6d73508e38812518aceb069b68 to before ce112c941c2b172afba3e913a90c380647d53975Affected
  • c09c4f31998bac6d73508e38812518aceb069b68 to before 177fbbcb4ed6b306c1626a277fac3fb1c495a4c7Affected
LinuxLinux
  • 6.7Affected
  • before 6.7Not affected
  • 6.7.5 through 6.7.*Not affected
  • 6.8 and laterNot affected

References

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