CVE-2024-50269

Kernel compromise via released USB PHY reuse

Published Nov 19, 2024 · Updated May 23, 2026

Use-after-free in the Linux kernel sunxi MUSB driver allows local users to compromise kernel security through driver re-registration. sunxi_musb_exit() calls devm_usb_put_phy() on glue->xceiv, but a later musb_driver registration reuses that released USB PHY in sunxi_musb_init(). Low-privileged local access is required; successful exploitation can disclose or alter data or crash the system.

CVSS severity7.8
High
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in the Linux kernel sunxi MUSB driver allows local users to compromise kernel security through driver re-registration. sunxi_musb_exit() calls devm_usb_put_phy() on glue->xceiv, but a later musb_driver registration reuses that released USB PHY in sunxi_musb_init(). Low-privileged local access is required; successful exploitation can disclose or alter data or crash the system.

The record

CVE
CVE-2024-50269
Published
Nov 19, 2024
Updated
May 23, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-416, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 19, 2024CVE publishedPublication date reported by the CVE source.
  2. May 23, 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=4.13.10 <4.14
  2. Affected versionversion=4.14
  3. Affected versionversion=4.4.95 <4.5
  4. Affected versionversion=4.9.59 <4.10
  5. Affected versionversion=583a4219841d00e96b5de55be160aa7eb7721a4d
  6. Affected versionversion=6ed05c68cbcae42cd52b8e53b66952bfa9c002ce <498dbd9aea205db9da674994b74c7bf8e18448bd
  7. Affected versionversion=6ed05c68cbcae42cd52b8e53b66952bfa9c002ce <4aa77d5ea9944468e16c3eed15e858fd5de44de1
  8. Affected versionversion=6ed05c68cbcae42cd52b8e53b66952bfa9c002ce <63559ba8077cbadae1c92a65b73ea522bf377dd9
  9. Affected versionversion=6ed05c68cbcae42cd52b8e53b66952bfa9c002ce <6e2848d1c8c0139161e69ac0a94133e90e9988e8
  10. Affected versionversion=6ed05c68cbcae42cd52b8e53b66952bfa9c002ce <721ddad945596220c123eb6f7126729fe277ee4f
  11. Affected versionversion=6ed05c68cbcae42cd52b8e53b66952bfa9c002ce <8a30da5aa9609663b3e05bcc91a916537f66a4cd
  12. Affected versionversion=6ed05c68cbcae42cd52b8e53b66952bfa9c002ce <b08baa75b989cf779cbfa0969681f8ba2dc46569
  13. Affected versionversion=6ed05c68cbcae42cd52b8e53b66952bfa9c002ce <ccd811c304d2ee56189bfbc49302cb3c44361893
  14. Affected versionversion=a2259ebaa933331c53904caf792b619ec42f0da5
  15. Affected versionversion=b4ecc15d6f5a13c0bbe2777438e87e321f83faaa

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.13.10 <4.14; version=4.14; version=4.4.95 <4.5; version=4.9.59 <4.10; version=583a4219841d00e96b5de55be160aa7eb7721a4d; version=6ed05c68cbcae42cd52b8e53b66952bfa9c002ce <498dbd9aea205db9da674994b74c7bf8e18448bd; version=6ed05c68cbcae42cd52b8e53b66952bfa9c002ce <4aa77d5ea9944468e16c3eed15e858fd5de44de1; version=6ed05c68cbcae42cd52b8e53b66952bfa9c002ce <63559ba8077cbadae1c92a65b73ea522bf377dd9; version=6ed05c68cbcae42cd52b8e53b66952bfa9c002ce <6e2848d1c8c0139161e69ac0a94133e90e9988e8; version=6ed05c68cbcae42cd52b8e53b66952bfa9c002ce <721ddad945596220c123eb6f7126729fe277ee4f; version=6ed05c68cbcae42cd52b8e53b66952bfa9c002ce <8a30da5aa9609663b3e05bcc91a916537f66a4cd; version=6ed05c68cbcae42cd52b8e53b66952bfa9c002ce <b08baa75b989cf779cbfa0969681f8ba2dc46569; version=6ed05c68cbcae42cd52b8e53b66952bfa9c002ce <ccd811c304d2ee56189bfbc49302cb3c44361893; version=a2259ebaa933331c53904caf792b619ec42f0da5; version=b4ecc15d6f5a13c0bbe2777438e87e321f83faaa

Published CVSS scores

7.8NISTCVSS: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.

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)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-416Use After Free
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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