CVE-2024-38614

Local kernel compromise via kernel-mode signal delivery

Published Jun 19, 2024 · Updated Aug 5, 2026

Improper exception handling in the Linux kernel allows local users to corrupt kernel state through OpenRISC trap paths. The do_fpe_trap and do_trap handlers call force_sig_fault for exceptions raised while restoring kernel-mode state instead of terminating the kernel path, overwriting exception state and repeatedly resuming the faulting instruction. An unprivileged local process can trigger the path through crafted floating-point state, exposing kernel memory, enabling supervisor-mode state corruption, or hanging the CPU.

CVSS severity7.8
High
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

Improper exception handling in the Linux kernel allows local users to corrupt kernel state through OpenRISC trap paths. The do_fpe_trap and do_trap handlers call force_sig_fault for exceptions raised while restoring kernel-mode state instead of terminating the kernel path, overwriting exception state and repeatedly resuming the faulting instruction. An unprivileged local process can trigger the path through crafted floating-point state, exposing kernel memory, enabling supervisor-mode state corruption, or hanging the CPU.

The record

CVE
CVE-2024-38614
Published
Jun 19, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 19, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 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=27267655c5313ba0f5a3caa9ad35d887d9a12574 <075c0405b0d7d9fc490609e988a3af0069596538
  2. Affected versionversion=27267655c5313ba0f5a3caa9ad35d887d9a12574 <c0ed9a711e3392d73e857faa031d8d349c0d70db
  3. Affected versionversion=27267655c5313ba0f5a3caa9ad35d887d9a12574 <c88cfb5cea5f8f9868ef02cc9ce9183a26dcf20f
  4. Affected versionversion=27267655c5313ba0f5a3caa9ad35d887d9a12574 <cea9d0015c140af39477dd5eeb9b20233a45daa9
  5. Affected versionversion=6.4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=27267655c5313ba0f5a3caa9ad35d887d9a12574 <075c0405b0d7d9fc490609e988a3af0069596538; version=27267655c5313ba0f5a3caa9ad35d887d9a12574 <c0ed9a711e3392d73e857faa031d8d349c0d70db; version=27267655c5313ba0f5a3caa9ad35d887d9a12574 <c88cfb5cea5f8f9868ef02cc9ce9183a26dcf20f; version=27267655c5313ba0f5a3caa9ad35d887d9a12574 <cea9d0015c140af39477dd5eeb9b20233a45daa9; version=6.4

Published CVSS scores

5.5UbuntuCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
7.8Linux kernel CNACVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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

T1068Exploitation for Privilege Escalation

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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