CVE-2024-57879

Local denial of service via HCI reference leak

Published Jan 11, 2025 · Updated May 23, 2026

Improper resource release in the Linux kernel allows local users to interrupt service through crafted Bluetooth ISO socket activity. The iso_listen_bis function obtains an HCI device reference with hci_get_route but omits hci_dev_put on an error path, leaking the held reference. Exploitation requires local low-privilege access and repeated error-path execution can exhaust kernel resources, with no reported data disclosure or modification.

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

Improper resource release in the Linux kernel allows local users to interrupt service through crafted Bluetooth ISO socket activity. The iso_listen_bis function obtains an HCI device reference with hci_get_route but omits hci_dev_put on an error path, leaking the held reference. Exploitation requires local low-privilege access and repeated error-path execution can exhaust kernel resources, with no reported data disclosure or modification.

The record

CVE
CVE-2024-57879
Published
Jan 11, 2025
Updated
May 23, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-404, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 11, 2025CVE publishedPublication date reported by the CVE source.
  2. May 23, 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=02171da6e86a73e1b343b36722f5d9d5c04b3539 <4ca50db1c567d658d173c5ef3ee6c52b0b03603c
  2. Affected versionversion=02171da6e86a73e1b343b36722f5d9d5c04b3539 <9c76fff747a73ba01d1d87ed53dd9c00cb40ba05
  3. Affected versionversion=6.8.12 <6.9
  4. Affected versionversion=6.9
  5. Affected versionversion=a6c3af0a620082d191dabc69c4925b3e6c26dd48

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=02171da6e86a73e1b343b36722f5d9d5c04b3539 <4ca50db1c567d658d173c5ef3ee6c52b0b03603c; version=02171da6e86a73e1b343b36722f5d9d5c04b3539 <9c76fff747a73ba01d1d87ed53dd9c00cb40ba05; version=6.8.12 <6.9; version=6.9; version=a6c3af0a620082d191dabc69c4925b3e6c26dd48

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-404Improper Resource Shutdown or Release
T1499.004Application 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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