CVE-2026-93092: Linux vulnerability

CVE-2026-93092: firmware: arm_scmi: Unregister device notifier before IDR teardown

In the Linux kernel, the following vulnerability has been resolved: firmware: arm_scmi: Unregister device notifier before IDR teardown The requested-devices notifier looks up protocol fwnodes from the active_protocols IDR. During remove, unregister the notifier before releasing and destroying active_protocols so no notifier callback can race with the IDR teardown. Keep the bus notifier registered until after the protocol state is torn down, matching the existing remove ordering for SCMI bus users.

UnknownCVSS not scoredNot KEV-listedUpdatedOct 19, 2026, 09:05 UTC (UTC+00:00)

Potential ATT&CK relevance

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CVE-2026-93092 mapping review

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Sep 17, 2026, 16:11 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

3Timeline events

0ADP providers

6Source links

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
Sep 17, 2026, 16:02 UTC (UTC+00:00)
CVE publishedCVE Program
The CVE record was published.
Sep 17, 2026, 16:11 UTC (UTC+00:00)
CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
Oct 19, 2026, 09:05 UTC (UTC+00:00)

Source materials

CVE List V5 sourceCVE List V5
https://git.kernel.org/stable/c/70a26b37389846f1f29a09f7983aa3f45feff529CVE reference, Linux
https://git.kernel.org/stable/c/492fb49eac24beecd6d3c5e4744a513e626f8dcfCVE reference, Linux
https://git.kernel.org/stable/c/f5e528f631425416f9b39e9d8b385c9f1ceb40d6CVE reference, Linux
https://git.kernel.org/stable/c/74fcaa0a3f7ad3edfde2e8c6cb8ae457a00e0b7aCVE reference, Linux
https://git.kernel.org/stable/c/66a0bbf30cc14140fe13f63cd594a7c1ee352b75CVE reference, Linux

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

LinuxLinux53b8c25df7082edd78a3fc63e359abee0f28fa70, 53b8c25df7082edd78a3fc63e359abee0f28fa70, 53b8c25df7082edd78a3fc63e359abee0f28fa70, 53b8c25df7082edd78a3fc63e359abee0f28fa70, 53b8c25df7082edd78a3fc63e359abee0f28fa70unaffected

LinuxLinux6.3, 0, 6.6.157, 6.12.110, 6.18.52, 7.2.6, 7.3affected

Weakness

CWE details

No CWE listed

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