CVE-2026-93080: Linux vulnerability

CVE-2026-93080: firmware: arm_scmi: Fix transport device teardown lookup

In the Linux kernel, the following vulnerability has been resolved: firmware: arm_scmi: Fix transport device teardown lookup SCMI transport devices are deliberately excluded from normal SCMI bus matching so protocol drivers cannot bind to the internal transport children. However, scmi_device_destroy() uses the same protocol/name lookup to find devices that must be unregistered during channel teardown. Split the match helper so driver matching still skips transport devices, while explicit child lookup can find them for teardown. Use a shared transport-device name prefix macro for both matching and name generation. Since transport-device names are derived from direction and protocol ID, reject duplicate protocol channel setup before creating or finding a transport device. This prevents malformed firmware with duplicate protocol child nodes from reusing an existing transport device and then destroying it when the duplicate IDR insertion fails.

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

Potential ATT&CK relevance

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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

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0CVSS vectors

3Timeline events

0ADP providers

4Source 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, 15:57 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/c656427440ea627166394d00c4b72147d5d79c60CVE reference, Linux
https://git.kernel.org/stable/c/4635953b4c1af477e166073521a77de6279f6929CVE reference, Linux
https://git.kernel.org/stable/c/a14dd8fe0a95db638c550ed984cfe2a7428c783dCVE reference, Linux

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

LinuxLinux9593804c44c24545e1b0496786dcb765d7b0e193, 9593804c44c24545e1b0496786dcb765d7b0e193, 9593804c44c24545e1b0496786dcb765d7b0e193unaffected

LinuxLinux6.16, 0, 6.18.52, 7.2.6, 7.3affected

Weakness

CWE details

No CWE listed

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