CVE-2023-53308

System crash via FEC removal error mishandling

Published Sep 16, 2025 · Updated May 23, 2026

Resource-management flaw in the Linux kernel FEC driver allows local users to crash the system during device removal. In fec_drv_remove(), a pm_runtime_resume_and_get() failure causes an early return even as the driver core continues removal and frees the managed register mapping. Low-privileged local access, a Freescale FEC device, a runtime-PM resume failure during removal, and a later callback are required.

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

What happened

Resource-management flaw in the Linux kernel FEC driver allows local users to crash the system during device removal. In fec_drv_remove(), a pm_runtime_resume_and_get() failure causes an early return even as the driver core continues removal and frees the managed register mapping. Low-privileged local access, a Freescale FEC device, a runtime-PM resume failure during removal, and a later callback are required.

The record

CVE
CVE-2023-53308
Published
Sep 16, 2025
Updated
May 23, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-415, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 16, 2025CVE 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=04748841f7a02ec6ff07fadfc5d1f8e24e61946d <be85912c36ddca3e8b2eef1b5392cd8db6bdb730
  2. Affected versionversion=4.14.158 <4.14.316
  3. Affected versionversion=4.19.88 <4.19.284
  4. Affected versionversion=4.9.206 <4.10
  5. Affected versionversion=5.3.15 <5.4
  6. Affected versionversion=5.4
  7. Affected versionversion=982d424239d7fae74938557428d45c717567ea9b <d52a0cca591e899d4e5c8ab19e067b4c6b7d104f
  8. Affected versionversion=a31eda65ba210741b598044d045480494d0ed52a <83996d317b1deddc85006376082e8886f55aa709
  9. Affected versionversion=a31eda65ba210741b598044d045480494d0ed52a <9407454a9b18bbeff216e8ecde87ffb2171e9ccf
  10. Affected versionversion=a31eda65ba210741b598044d045480494d0ed52a <b22b514209ff8c4287abb853399890ab97e1b5ca
  11. Affected versionversion=a31eda65ba210741b598044d045480494d0ed52a <c1bc2870f14e526a01897e14c747a0a0ca125231
  12. Affected versionversion=a31eda65ba210741b598044d045480494d0ed52a <e02d8d5b1602689b98d9b91550a11b9b57baedbe
  13. Affected versionversion=a31eda65ba210741b598044d045480494d0ed52a <f816b9829b19394d318e01953aa3b2721bca040d
  14. Affected versionversion=d961a58dcc9778948502847303d29d018a49710a
  15. Affected versionversion=d9c7531fb4708eb3f22cccdb0b7371834d37555a

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=04748841f7a02ec6ff07fadfc5d1f8e24e61946d <be85912c36ddca3e8b2eef1b5392cd8db6bdb730; version=4.14.158 <4.14.316; version=4.19.88 <4.19.284; version=4.9.206 <4.10; version=5.3.15 <5.4; version=5.4; version=982d424239d7fae74938557428d45c717567ea9b <d52a0cca591e899d4e5c8ab19e067b4c6b7d104f; version=a31eda65ba210741b598044d045480494d0ed52a <83996d317b1deddc85006376082e8886f55aa709; version=a31eda65ba210741b598044d045480494d0ed52a <9407454a9b18bbeff216e8ecde87ffb2171e9ccf; version=a31eda65ba210741b598044d045480494d0ed52a <b22b514209ff8c4287abb853399890ab97e1b5ca; version=a31eda65ba210741b598044d045480494d0ed52a <c1bc2870f14e526a01897e14c747a0a0ca125231; version=a31eda65ba210741b598044d045480494d0ed52a <e02d8d5b1602689b98d9b91550a11b9b57baedbe; version=a31eda65ba210741b598044d045480494d0ed52a <f816b9829b19394d318e01953aa3b2721bca040d; version=d961a58dcc9778948502847303d29d018a49710a; version=d9c7531fb4708eb3f22cccdb0b7371834d37555a

Published CVSS scores

7.8CanonicalCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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
T1499Endpoint Denial of Service

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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