CVE-2026-93103RDMA/hfi1: Preserve unit 0 on allocation failure
- —Not scoredno CVSS score yet
- 0.18%Exploitation in 30 daysEPSS · top 93% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By Linux
Published
- 32 days later
· 32 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.18% · top 93% of all CVEs (15 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 03b92789e5cfdac66805c1a98f1ec67336199d56 – < 852637d3ee56aed8ea3ee8948eda21eca406c051
- affected 03b92789e5cfdac66805c1a98f1ec67336199d56 – < 3d0e5252b8d0345ef494763ca31e3ddd666e02cb
- affected 03b92789e5cfdac66805c1a98f1ec67336199d56 – < 0feb29d434e6cc0ebefec4f77be014c85ad751b0
- affected 03b92789e5cfdac66805c1a98f1ec67336199d56 – < 3f1e196eb66b8cd3882e373794d6cea46f150a20
- affected 03b92789e5cfdac66805c1a98f1ec67336199d56 – < 4ff9d58d34758e9633078b37e8d5289b513ff80e
- affected 03b92789e5cfdac66805c1a98f1ec67336199d56 – < fd4d3ad5f244a867166d1e2da7ece3d82878ec81
- affected 03b92789e5cfdac66805c1a98f1ec67336199d56 – < 4204f5c0312ba136181a6e148ffa0bfaf95a4cc1
- affected 03b92789e5cfdac66805c1a98f1ec67336199d56 – < 2e3809ad8911f5d5581b3f046bd628417bface76
- affected 5.2
- unaffected < 5.2
- unaffected 5.10.270 – ≤ 5.10.*
- unaffected 5.15.221 – ≤ 5.15.*
- unaffected 6.1.188 – ≤ 6.1.*
- unaffected 6.6.157 – ≤ 6.6.*
- unaffected 6.12.110 – ≤ 6.12.*
- unaffected 6.18.52 – ≤ 6.18.*
- unaffected 7.2.6 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References8
- https://git.kernel.org/stable/c/852637d3ee56aed8ea3ee8948eda21eca406c051 (opens in a new tab)
- https://git.kernel.org/stable/c/3d0e5252b8d0345ef494763ca31e3ddd666e02cb (opens in a new tab)
- https://git.kernel.org/stable/c/0feb29d434e6cc0ebefec4f77be014c85ad751b0 (opens in a new tab)
- https://git.kernel.org/stable/c/3f1e196eb66b8cd3882e373794d6cea46f150a20 (opens in a new tab)
- https://git.kernel.org/stable/c/4ff9d58d34758e9633078b37e8d5289b513ff80e (opens in a new tab)
- https://git.kernel.org/stable/c/fd4d3ad5f244a867166d1e2da7ece3d82878ec81 (opens in a new tab)
- https://git.kernel.org/stable/c/4204f5c0312ba136181a6e148ffa0bfaf95a4cc1 (opens in a new tab)
- https://git.kernel.org/stable/c/2e3809ad8911f5d5581b3f046bd628417bface76 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-82211 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://cveledger.app/cve/CVE-2026-93103)Record last updated .