CVE-2026-93103: Linux vulnerability

CVE-2026-93103: RDMA/hfi1: Preserve unit 0 on allocation failure

In the Linux kernel, the following vulnerability has been resolved: RDMA/hfi1: Preserve unit 0 on allocation failure hfi1_free_devdata() assumes that the device was inserted into the unit table and unconditionally erases dd->unit. If xa_alloc_irq() fails, the zero-initialized unit remains zero, so full cleanup can remove an unrelated device from index 0. Release only the rdmavt allocation and return immediately while the unit table has not acquired the device.

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

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

9Source 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/852637d3ee56aed8ea3ee8948eda21eca406c051CVE reference, Linux
https://git.kernel.org/stable/c/3d0e5252b8d0345ef494763ca31e3ddd666e02cbCVE reference, Linux
https://git.kernel.org/stable/c/0feb29d434e6cc0ebefec4f77be014c85ad751b0CVE reference, Linux
https://git.kernel.org/stable/c/3f1e196eb66b8cd3882e373794d6cea46f150a20CVE reference, Linux
https://git.kernel.org/stable/c/4ff9d58d34758e9633078b37e8d5289b513ff80eCVE reference, Linux
https://git.kernel.org/stable/c/fd4d3ad5f244a867166d1e2da7ece3d82878ec81CVE reference, Linux
https://git.kernel.org/stable/c/4204f5c0312ba136181a6e148ffa0bfaf95a4cc1CVE reference, Linux
https://git.kernel.org/stable/c/2e3809ad8911f5d5581b3f046bd628417bface76CVE reference, Linux

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

LinuxLinux03b92789e5cfdac66805c1a98f1ec67336199d56, 03b92789e5cfdac66805c1a98f1ec67336199d56, 03b92789e5cfdac66805c1a98f1ec67336199d56, 03b92789e5cfdac66805c1a98f1ec67336199d56, 03b92789e5cfdac66805c1a98f1ec67336199d56, 03b92789e5cfdac66805c1a98f1ec67336199d56, 03b92789e5cfdac66805c1a98f1ec67336199d56, 03b92789e5cfdac66805c1a98f1ec67336199d56unaffected

LinuxLinux5.2, 0, 5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.110, 6.18.52, 7.2.6, 7.3affected

Weakness

CWE details

No CWE listed

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