CVE-2024-47658

Kernel disruption via BH-enabled crypto finalization

Published Oct 9, 2024 · Updated Aug 5, 2026

Concurrency failure in Linux 4.16 through 6.6.49 and 6.7 through 6.10.8 allows attackers to disrupt STM32 CRYP operations. The interrupt completion path in drivers/crypto/stm32/stm32-cryp.c calls crypto_finalize_request without disabling bottom halves, permitting recursive spinlock acquisition. Exposure requires the STM32 CRYP driver and an interrupt-mode cryptographic request; the documented result is a spinlock-recursion warning, with no reported data access or modification.

CVSS severity7.5
High
EPSS probability0.47%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Concurrency failure in Linux 4.16 through 6.6.49 and 6.7 through 6.10.8 allows attackers to disrupt STM32 CRYP operations. The interrupt completion path in drivers/crypto/stm32/stm32-cryp.c calls crypto_finalize_request without disabling bottom halves, permitting recursive spinlock acquisition. Exposure requires the STM32 CRYP driver and an interrupt-mode cryptographic request; the documented result is a spinlock-recursion warning, with no reported data access or modification.

The record

CVE
CVE-2024-47658
Published
Oct 9, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Oct 9, 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

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.16
  2. Affected versionversion=9e054ec21ef8344345b28603fb272fe999f735db <56ddb9aa3b324c2d9645b5a7343e46010cf3f6ce
  3. Affected versionversion=9e054ec21ef8344345b28603fb272fe999f735db <5d734665cd5d93270731e0ff1dd673fec677f447
  4. Affected versionversion=9e054ec21ef8344345b28603fb272fe999f735db <d93a2f86b0a998aa1f0870c85a2a60a0771ef89a

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=4.16; version=9e054ec21ef8344345b28603fb272fe999f735db <56ddb9aa3b324c2d9645b5a7343e46010cf3f6ce; version=9e054ec21ef8344345b28603fb272fe999f735db <5d734665cd5d93270731e0ff1dd673fec677f447; version=9e054ec21ef8344345b28603fb272fe999f735db <d93a2f86b0a998aa1f0870c85a2a60a0771ef89a

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
7.5Linux kernel CVE teamCVSS:3.1/AV:N/AC:L/PR:N/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
VectorUnavailable
PrivilegesUnavailable
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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo