CVE-2024-57889

System hang via mutex locking under spinlock

Published Jan 15, 2025 · Updated May 11, 2026

Denial of service in the Linux kernel before 6.13 allows local users to hang the system through MCP23xxx interrupt setup. In mcp23s08_irq_set_type(), regmap_update_bits_base() takes a mutex while __setup_irq() already holds desc->lock as a spinlock. The path requires local low-privileged access and a system using an MCP23xxx I/O expander for interrupts; reaching it can hang the host without exposing or modifying data.

CVSS severity5.5
Medium
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in the Linux kernel before 6.13 allows local users to hang the system through MCP23xxx interrupt setup. In mcp23s08_irq_set_type(), regmap_update_bits_base() takes a mutex while __setup_irq() already holds desc->lock as a spinlock. The path requires local low-privileged access and a system using an MCP23xxx I/O expander for interrupts; reaching it can hang the host without exposing or modifying data.

The record

CVE
CVE-2024-57889
Published
Jan 15, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 15, 2025CVE 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=4.13
  2. Affected versionversion=8f38910ba4f662222157ce07a0d5becc4328c46a <0310cbad163a908d09d99c26827859365cd71fcb
  3. Affected versionversion=8f38910ba4f662222157ce07a0d5becc4328c46a <788d9e9a41b81893d6bb8faa05f045c975278318
  4. Affected versionversion=8f38910ba4f662222157ce07a0d5becc4328c46a <830f838589522404cd7c2f0f540602f25034af61
  5. Affected versionversion=8f38910ba4f662222157ce07a0d5becc4328c46a <8c6fd5803b988a5e78c9b9e42c70a936d7cfc6ec
  6. Affected versionversion=8f38910ba4f662222157ce07a0d5becc4328c46a <9372e160d8211a7e17f2abff8370794f182df785
  7. Affected versionversion=8f38910ba4f662222157ce07a0d5becc4328c46a <a37eecb705f33726f1fb7cd2a67e514a15dfe693
  8. Affected versionversion=8f38910ba4f662222157ce07a0d5becc4328c46a <c55d186376a87b468c9ee30f2195e0f3857f61a0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.13; version=8f38910ba4f662222157ce07a0d5becc4328c46a <0310cbad163a908d09d99c26827859365cd71fcb; version=8f38910ba4f662222157ce07a0d5becc4328c46a <788d9e9a41b81893d6bb8faa05f045c975278318; version=8f38910ba4f662222157ce07a0d5becc4328c46a <830f838589522404cd7c2f0f540602f25034af61; version=8f38910ba4f662222157ce07a0d5becc4328c46a <8c6fd5803b988a5e78c9b9e42c70a936d7cfc6ec; version=8f38910ba4f662222157ce07a0d5becc4328c46a <9372e160d8211a7e17f2abff8370794f182df785; version=8f38910ba4f662222157ce07a0d5becc4328c46a <a37eecb705f33726f1fb7cd2a67e514a15dfe693; version=8f38910ba4f662222157ce07a0d5becc4328c46a <c55d186376a87b468c9ee30f2195e0f3857f61a0

Published CVSS scores

5.5CanonicalCVSS: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

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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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