CVE-2024-54031

Kernel crash via unaligned nftables atomic read

Published Jan 15, 2025 · Updated May 11, 2026

Denial of service in affected Linux kernel stable releases allows local users to crash the kernel through nftables set activity. The nft_rhash_gc path atomically reads the genmask member from an nft_set_ext structure that lacks required word alignment, causing an alignment fault. A low-privileged local account and the affected nftables path are required; successful triggering produces a kernel Oops and service interruption.

CVSS severity5.5
Medium
EPSS probability0.22%
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 affected Linux kernel stable releases allows local users to crash the kernel through nftables set activity. The nft_rhash_gc path atomically reads the genmask member from an nft_set_ext structure that lacks required word alignment, causing an alignment fault. A low-privileged local account and the affected nftables path are required; successful triggering produces a kernel Oops and service interruption.

The record

CVE
CVE-2024-54031
Published
Jan 15, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
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=23a6919bb3ecf6787f060476ee6810ad55ebf9c8 <607774a13764676d4b8be9c8b9c66b8cf3469043
  2. Affected versionversion=5.10.231 <5.10.233
  3. Affected versionversion=5.15.174 <5.15.176
  4. Affected versionversion=5.4.287 <5.4.289
  5. Affected versionversion=59a59da8de47848575eedc141a74aae57696706d <277f00b0c2dca8794cf4837722960bdc4174911f
  6. Affected versionversion=6.1.120 <6.1.124
  7. Affected versionversion=6.12.5 <6.12.9
  8. Affected versionversion=6.6.66 <6.6.70
  9. Affected versionversion=7ffc7481153bbabf3332c6a19b289730c7e1edf5 <542ed8145e6f9392e3d0a86a0e9027d2ffd183e4
  10. Affected versionversion=86c27603514cb8ead29857365cdd145404ee9706 <4f49349c1963e507aa37c1ec05178faeb0103959
  11. Affected versionversion=98d62cf0e26305dd6a1932a4054004290f4194bb <352f8eaaabd008f09d1e176194edc261a7304084
  12. Affected versionversion=be4d0ac67d92e6a285cd3eeb672188d249c121b2 <d24cbc43cc7b41a0824b0bc6ec4d8436d8d7a9c0
  13. Affected versionversion=e21855091f11df80d41239dbc5f8545b772c657d <6a14b46052eeb83175a95baf399283860b9d94c4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=23a6919bb3ecf6787f060476ee6810ad55ebf9c8 <607774a13764676d4b8be9c8b9c66b8cf3469043; version=5.10.231 <5.10.233; version=5.15.174 <5.15.176; version=5.4.287 <5.4.289; version=59a59da8de47848575eedc141a74aae57696706d <277f00b0c2dca8794cf4837722960bdc4174911f; version=6.1.120 <6.1.124; version=6.12.5 <6.12.9; version=6.6.66 <6.6.70; version=7ffc7481153bbabf3332c6a19b289730c7e1edf5 <542ed8145e6f9392e3d0a86a0e9027d2ffd183e4; version=86c27603514cb8ead29857365cdd145404ee9706 <4f49349c1963e507aa37c1ec05178faeb0103959; version=98d62cf0e26305dd6a1932a4054004290f4194bb <352f8eaaabd008f09d1e176194edc261a7304084; version=be4d0ac67d92e6a285cd3eeb672188d249c121b2 <d24cbc43cc7b41a0824b0bc6ec4d8436d8d7a9c0; version=e21855091f11df80d41239dbc5f8545b772c657d <6a14b46052eeb83175a95baf399283860b9d94c4

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

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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

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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