CVE-2024-50292

Kernel crash via invalid DMA channel release

Published Nov 19, 2024 · Updated May 11, 2026

NULL pointer dereference in Linux 5.7 through 6.12-rc6 allows local users to crash the kernel during STM32 S/PDIF receiver probing. The stm32_spdifrx_remove function treats an error-valued ctrl_chan pointer as valid and passes it to dma_release_channel after DMA acquisition fails. Reaching the fault requires low-privileged local access, the STM32 S/PDIF receiver driver, and a control-channel request failure; the resulting dereference interrupts the system.

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

NULL pointer dereference in Linux 5.7 through 6.12-rc6 allows local users to crash the kernel during STM32 S/PDIF receiver probing. The stm32_spdifrx_remove function treats an error-valued ctrl_chan pointer as valid and passes it to dma_release_channel after DMA acquisition fails. Reaching the fault requires low-privileged local access, the STM32 S/PDIF receiver driver, and a control-channel request failure; the resulting dereference interrupts the system.

The record

CVE
CVE-2024-50292
Published
Nov 19, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 19, 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=5.7
  2. Affected versionversion=794df9448edb55978e50372f083aeedade1b2844 <0d75f887aabd80cf37ea48d28f159afa7850ea28
  3. Affected versionversion=794df9448edb55978e50372f083aeedade1b2844 <22ae9321054cf7f36c537702af133659f51a0b88
  4. Affected versionversion=794df9448edb55978e50372f083aeedade1b2844 <23bdbd1ef3e063e03d3c50c15a591b005ebbae39
  5. Affected versionversion=794df9448edb55978e50372f083aeedade1b2844 <3a977b554f668382dfba31fd62e4cce4fe5643db
  6. Affected versionversion=794df9448edb55978e50372f083aeedade1b2844 <4f1d74f74752eab8af6b8b28797dc6490d57374c
  7. Affected versionversion=794df9448edb55978e50372f083aeedade1b2844 <9bb4af400c386374ab1047df44c508512c08c31f

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.7; version=794df9448edb55978e50372f083aeedade1b2844 <0d75f887aabd80cf37ea48d28f159afa7850ea28; version=794df9448edb55978e50372f083aeedade1b2844 <22ae9321054cf7f36c537702af133659f51a0b88; version=794df9448edb55978e50372f083aeedade1b2844 <23bdbd1ef3e063e03d3c50c15a591b005ebbae39; version=794df9448edb55978e50372f083aeedade1b2844 <3a977b554f668382dfba31fd62e4cce4fe5643db; version=794df9448edb55978e50372f083aeedade1b2844 <4f1d74f74752eab8af6b8b28797dc6490d57374c; version=794df9448edb55978e50372f083aeedade1b2844 <9bb4af400c386374ab1047df44c508512c08c31f

Published CVSS scores

5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5NIST NVDCVSS: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

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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-476NULL Pointer Dereference
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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