CVE-2024-50215

Kernel crash via stale authentication key pointer

Published Nov 9, 2024 · Updated Aug 5, 2026

A double free in Linux kernel NVMe target authentication allows local users to crash the kernel through an error path. nvmet_setup_dhgroup() frees ctrl->dh_key after a setup failure without clearing the pointer, so nvmet_destroy_auth() later frees the same allocation. Triggering the flaw requires reuse of the same controller across DH-group setup calls followed by authentication teardown, resulting in kernel memory corruption or a system crash.

CVSS severity7.8
High
EPSS probability0.63%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A double free in Linux kernel NVMe target authentication allows local users to crash the kernel through an error path. nvmet_setup_dhgroup() frees ctrl->dh_key after a setup failure without clearing the pointer, so nvmet_destroy_auth() later frees the same allocation. Triggering the flaw requires reuse of the same controller across DH-group setup calls followed by authentication teardown, resulting in kernel memory corruption or a system crash.

The record

CVE
CVE-2024-50215
Published
Nov 9, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-415, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 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

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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=6.0
  2. Affected versionversion=7a277c37d3522e9b2777d762bbbcecafae2b1f8d <c60af16e1d6cc2237d58336546d6adfc067b6b8f
  3. Affected versionversion=7a277c37d3522e9b2777d762bbbcecafae2b1f8d <c94e965f766321641ec38e4eece9ce8884543244
  4. Affected versionversion=7a277c37d3522e9b2777d762bbbcecafae2b1f8d <d2f551b1f72b4c508ab9298419f6feadc3b5d791
  5. Affected versionversion=7a277c37d3522e9b2777d762bbbcecafae2b1f8d <e61bd51e44409495d75847e9230736593e4c8710

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.0; version=7a277c37d3522e9b2777d762bbbcecafae2b1f8d <c60af16e1d6cc2237d58336546d6adfc067b6b8f; version=7a277c37d3522e9b2777d762bbbcecafae2b1f8d <c94e965f766321641ec38e4eece9ce8884543244; version=7a277c37d3522e9b2777d762bbbcecafae2b1f8d <d2f551b1f72b4c508ab9298419f6feadc3b5d791; version=7a277c37d3522e9b2777d762bbbcecafae2b1f8d <e61bd51e44409495d75847e9230736593e4c8710

Published CVSS scores

7.8CISA ADP VulnrichmentCVSS: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

CWE-415Double Free
T1499.004Application or System Exploitation

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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