CVE-2024-40911

Kernel crash via unlocked station lookup race

Published Jul 12, 2024 · Updated Aug 5, 2026

NULL pointer dereference in Linux kernel cfg80211 allows local users to crash the kernel during Wi-Fi station reconnect activity. cfg80211_get_station calls rdev_get_station without holding the wiphy lock, letting delayed batman-adv work access ath10k station data while it is being reset. Reachability requires the affected wireless stack and a disconnect-reconnect race; the demonstrated consequence is a kernel oops and service interruption.

CVSS severity5.5
Medium
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in Linux kernel cfg80211 allows local users to crash the kernel during Wi-Fi station reconnect activity. cfg80211_get_station calls rdev_get_station without holding the wiphy lock, letting delayed batman-adv work access ath10k station data while it is being reset. Reachability requires the affected wireless stack and a disconnect-reconnect race; the demonstrated consequence is a kernel oops and service interruption.

The record

CVE
CVE-2024-40911
Published
Jul 12, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 12, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.16
  2. Affected versionversion=7406353d43c8e2faf478721e87aeb6f2f9685de0 <0ccc63958d8373e15a69f4f8069f3e78f7f3898a
  3. Affected versionversion=7406353d43c8e2faf478721e87aeb6f2f9685de0 <43e1eefb0b2094e2281150d87d09e8bc872b9fba
  4. Affected versionversion=7406353d43c8e2faf478721e87aeb6f2f9685de0 <642f89daa34567d02f312d03e41523a894906dae
  5. Affected versionversion=7406353d43c8e2faf478721e87aeb6f2f9685de0 <6d540b0317901535275020bd4ac44fac6439ca76
  6. Affected versionversion=7406353d43c8e2faf478721e87aeb6f2f9685de0 <dfd84ce41663be9ca3f69bd657c45f49b69344d9

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3.16; version=7406353d43c8e2faf478721e87aeb6f2f9685de0 <0ccc63958d8373e15a69f4f8069f3e78f7f3898a; version=7406353d43c8e2faf478721e87aeb6f2f9685de0 <43e1eefb0b2094e2281150d87d09e8bc872b9fba; version=7406353d43c8e2faf478721e87aeb6f2f9685de0 <642f89daa34567d02f312d03e41523a894906dae; version=7406353d43c8e2faf478721e87aeb6f2f9685de0 <6d540b0317901535275020bd4ac44fac6439ca76; version=7406353d43c8e2faf478721e87aeb6f2f9685de0 <dfd84ce41663be9ca3f69bd657c45f49b69344d9

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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