CVE-2024-57994

Service interruption via hard-interrupt blocking

Published Feb 27, 2025 · Updated May 11, 2026

Improper interrupt handling in the Linux kernel 6.5 through 6.13.1 allows local users to disrupt service through TUN queue resizing. ptr_ring_resize_multiple() disables hard interrupts while swapping and freeing queue entries, reaching page_pool_put_unrefed_netmem() in a prohibited context. Reachability requires local permission to change a TUN device's transmit queue length; the public report demonstrates a kernel warning but does not document code execution.

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

What happened

Improper interrupt handling in the Linux kernel 6.5 through 6.13.1 allows local users to disrupt service through TUN queue resizing. ptr_ring_resize_multiple() disables hard interrupts while swapping and freeing queue entries, reaching page_pool_put_unrefed_netmem() in a prohibited context. Reachability requires local permission to change a TUN device's transmit queue length; the public report demonstrates a kernel warning but does not document code execution.

The record

CVE
CVE-2024-57994
Published
Feb 27, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 27, 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=6.6
  2. Affected versionversion=ff4e538c8c3e675a15e1e49509c55951832e0451 <3257dac521d0ac6653108c755141dce634bb8ff2
  3. Affected versionversion=ff4e538c8c3e675a15e1e49509c55951832e0451 <572777a258c048e0d0fb3a0c47430eadcefe80c0
  4. Affected versionversion=ff4e538c8c3e675a15e1e49509c55951832e0451 <a126061c80d5efb4baef4bcf346094139cd81df6
  5. Affected versionversion=ff4e538c8c3e675a15e1e49509c55951832e0451 <e74801b7628dc52b17471aec729bc675479ddc73

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.6; version=ff4e538c8c3e675a15e1e49509c55951832e0451 <3257dac521d0ac6653108c755141dce634bb8ff2; version=ff4e538c8c3e675a15e1e49509c55951832e0451 <572777a258c048e0d0fb3a0c47430eadcefe80c0; version=ff4e538c8c3e675a15e1e49509c55951832e0451 <a126061c80d5efb4baef4bcf346094139cd81df6; version=ff4e538c8c3e675a15e1e49509c55951832e0451 <e74801b7628dc52b17471aec729bc675479ddc73

Published CVSS scores

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

No sourced classifications are available.

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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