CVE-2024-43844

Kernel crash via oversized GTK offload buffer

Published Aug 17, 2024 · Updated May 11, 2026

Buffer overrun in the Linux rtw89 Wi-Fi driver 6.10 through 6.10.2 allows local users to crash the kernel during resume from sleep. In rtw89_fw_h2c_wow_gtk_ofld(), the disable path extends the skb for the full H2C structure and then appends the GTK information again beyond its allocation. The path requires the rtw89 driver and GTK wake-on-WLAN offload, and reaching it causes skb_over_panic and a service interrupt.

CVSS severity5.5
Medium
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overrun in the Linux rtw89 Wi-Fi driver 6.10 through 6.10.2 allows local users to crash the kernel during resume from sleep. In rtw89_fw_h2c_wow_gtk_ofld(), the disable path extends the skb for the full H2C structure and then appends the GTK information again beyond its allocation. The path requires the rtw89 driver and GTK wake-on-WLAN offload, and reaching it causes skb_over_panic and a service interrupt.

The record

CVE
CVE-2024-43844
Published
Aug 17, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 17, 2024CVE publishedPublication date reported by the CVE source.
  2. May 11, 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=6.10
  2. Affected versionversion=ed9a3c0d4dd9ce79ff7f65238164a96da1b52dbf <dda364c345913fe03ddbe4d5ae14a2754c100296
  3. Affected versionversion=ed9a3c0d4dd9ce79ff7f65238164a96da1b52dbf <ef0d9d2f0dc1133db3d3a1c5167190c6627146b2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.10; version=ed9a3c0d4dd9ce79ff7f65238164a96da1b52dbf <dda364c345913fe03ddbe4d5ae14a2754c100296; version=ed9a3c0d4dd9ce79ff7f65238164a96da1b52dbf <ef0d9d2f0dc1133db3d3a1c5167190c6627146b2

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

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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