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Fencer Vulns
high 7.8

CVE-2024-26666 json

wifi: mac80211: fix RCU use in TDLS fast-xmit

published 2024-04-02 2 y ago modified 2026-08-05 3 mo ago also EUVD-2024-23928

cvss
7.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 27%
public exploits
0
none known

Summary

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

wifi: mac80211: fix RCU use in TDLS fast-xmit

This looks up the link under RCU protection, but isn't guaranteed to actually have protection. Fix that.

Patch / fix

  • Linux Linux 6.6.17, 6.7.5, 6.8
  • linux linux_kernel 6.5
  • linux Debian 14, Debian 13 6.7.7-1

debian advisories DEBIAN-CVE-2024-26666

  • linux-aws-6.5 Ubuntu 22.04 LTS 6.5.0-1023.23~22.04.1
  • linux-gcp-6.5 Ubuntu 22.04 LTS 6.5.0-1024.26~22.04.1
  • linux-hwe-6.5 Ubuntu 22.04 LTS 6.5.0-44.44~22.04.1
  • linux-oem-6.5 Ubuntu 22.04 LTS 6.5.0-1027.28
  • linux-azure-6.5 Ubuntu 22.04 LTS 6.5.0-1024.25~22.04.1
  • linux-nvidia-6.5 Ubuntu 22.04 LTS 6.5.0-1023.24
  • linux-oracle-6.5 Ubuntu 22.04 LTS 6.5.0-1026.26~22.04.1
  • linux-starfive-6.5 Ubuntu 22.04 LTS 6.5.0-1017.18~22.04.1

ubuntu advisories UBUNTU-CVE-2024-26666

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-26666 updated cvss 5.5

kernel: wifi: mac80211: fix RCU use in TDLS fast-xmit

  • Red Hat Enterprise Linux 9 rv, perf, rtla, kernel, bpftool, libperf, +83 more
    affected: no fix available “Fix deferred”
  • Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more Red Hat Enterprise Linux 8 perf, kernel, bpftool, kernel-rt, kernel-core, kernel-tools, +29 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

0.34% chance of exploitation in the next 30 days, higher than 27% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.1 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:H
CISA ADP 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Linux Linux
  • linux linux_kernel

Classification

Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.