CVE-2024-41088

Service hang via failed transmit ring desynchronization

Published Jul 29, 2024 · Updated May 11, 2026

Infinite-loop denial of service in the Linux mcp251xfd CAN driver allows local users to hang interrupt processing during transmission. When mcp251xfd_start_xmit() fails, tx_ring->head still advances, so mcp251xfd_handle_tefif_one() waits indefinitely for a skipped packet. Exploitation requires concurrent bus access with multiple devices sharing one SPI interface, and the resulting hang stops CAN message processing.

CVSS severity5.5
Medium
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Infinite-loop denial of service in the Linux mcp251xfd CAN driver allows local users to hang interrupt processing during transmission. When mcp251xfd_start_xmit() fails, tx_ring->head still advances, so mcp251xfd_handle_tefif_one() waits indefinitely for a skipped packet. Exploitation requires concurrent bus access with multiple devices sharing one SPI interface, and the resulting hang stops CAN message processing.

The record

CVE
CVE-2024-41088
Published
Jul 29, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-835, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 29, 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=5.10
  2. Affected versionversion=55e5b97f003e85e66babb55f357627d52081a264 <3e72558c1711d524e3150103739ddd06650e291b
  3. Affected versionversion=55e5b97f003e85e66babb55f357627d52081a264 <6c6b4afa59c2fb4d1759235f866d8caed2aa4729
  4. Affected versionversion=55e5b97f003e85e66babb55f357627d52081a264 <d8fb63e46c884c898a38f061c2330f7729e75510
  5. Affected versionversion=55e5b97f003e85e66babb55f357627d52081a264 <f926c022ebaabf7963bebf89a97201d66978a025

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.10; version=55e5b97f003e85e66babb55f357627d52081a264 <3e72558c1711d524e3150103739ddd06650e291b; version=55e5b97f003e85e66babb55f357627d52081a264 <6c6b4afa59c2fb4d1759235f866d8caed2aa4729; version=55e5b97f003e85e66babb55f357627d52081a264 <d8fb63e46c884c898a38f061c2330f7729e75510; version=55e5b97f003e85e66babb55f357627d52081a264 <f926c022ebaabf7963bebf89a97201d66978a025

Published CVSS scores

5.5NISTCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5UbuntuCVSS: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-835Loop with Unreachable Exit Condition ('Infinite Loop')
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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