CVE-2023-1989

System crash via unfinished Bluetooth SDIO work

Published Apr 11, 2023 · Updated Aug 26, 2024

Use-after-free in the Linux kernel before 6.3-rc4 allows attackers to crash the system through the Bluetooth HCI SDIO driver. The btsdio_send_frame path schedules data->work, while btsdio_remove tears down hdev without first canceling unfinished work. Reaching the race requires root-level driver removal or physical access; the grounded consequence is a system crash.

CVSS severity7.0
High
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in the Linux kernel before 6.3-rc4 allows attackers to crash the system through the Bluetooth HCI SDIO driver. The btsdio_send_frame path schedules data->work, while btsdio_remove tears down hdev without first canceling unfinished work. Reaching the race requires root-level driver removal or physical access; the grounded consequence is a system crash.

The record

CVE
CVE-2023-1989
Published
Apr 11, 2023
Updated
Aug 26, 2024
Vendor
Debian
Product
Debian GNU/Linux
Classifications
CWE-416, T1499.004
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Apr 11, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 26, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=5.10.178-3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Debian · Debian GNU/Linuxversion=5.10.178-3
The Linux Kernel Organization · Linux Kernelversion=0 <6.3+rc4; version=Linux kernel version prior to Kernel 6.3 RC4
NetApp · NetApp HCI Baseboard Management Controllerversion=h300s; version=h410c; version=h410s; version=h500s; version=h700s

Published CVSS scores

7.0NIST NVDCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
7.1CISA-ADPCVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-416Use After Free
T1499.004Endpoint Denial of Service: Application or System Exploitation

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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