RDMA/hfi1: Preserve unit 0 on allocation failure
Summary
| CVE | CVE-2026-93103 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-09-17 17:18:04 UTC |
| Updated | 2026-09-17 17:18:04 UTC |
| 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. |
Risk And Classification
EPSS: 0.001760000 probability, percentile 0.074640000 (date 2026-09-18)
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected 03b92789e5cfdac66805c1a98f1ec67336199d56 852637d3ee56aed8ea3ee8948eda21eca406c051 git | Not specified |
| CNA | Linux | Linux | affected 03b92789e5cfdac66805c1a98f1ec67336199d56 3d0e5252b8d0345ef494763ca31e3ddd666e02cb git | Not specified |
| CNA | Linux | Linux | affected 03b92789e5cfdac66805c1a98f1ec67336199d56 0feb29d434e6cc0ebefec4f77be014c85ad751b0 git | Not specified |
| CNA | Linux | Linux | affected 03b92789e5cfdac66805c1a98f1ec67336199d56 3f1e196eb66b8cd3882e373794d6cea46f150a20 git | Not specified |
| CNA | Linux | Linux | affected 03b92789e5cfdac66805c1a98f1ec67336199d56 4ff9d58d34758e9633078b37e8d5289b513ff80e git | Not specified |
| CNA | Linux | Linux | affected 03b92789e5cfdac66805c1a98f1ec67336199d56 fd4d3ad5f244a867166d1e2da7ece3d82878ec81 git | Not specified |
| CNA | Linux | Linux | affected 03b92789e5cfdac66805c1a98f1ec67336199d56 4204f5c0312ba136181a6e148ffa0bfaf95a4cc1 git | Not specified |
| CNA | Linux | Linux | affected 03b92789e5cfdac66805c1a98f1ec67336199d56 2e3809ad8911f5d5581b3f046bd628417bface76 git | Not specified |
| CNA | Linux | Linux | affected 5.2 | Not specified |
| CNA | Linux | Linux | unaffected 5.2 semver | Not specified |
| CNA | Linux | Linux | unaffected 5.10.270 5.10.* semver | Not specified |
| CNA | Linux | Linux | unaffected 5.15.221 5.15.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.188 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.157 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.110 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.52 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.2.6 7.2.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.3-rc1 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/3f1e196eb66b8cd3882e373794d6cea46f150a20 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/0feb29d434e6cc0ebefec4f77be014c85ad751b0 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/fd4d3ad5f244a867166d1e2da7ece3d82878ec81 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/2e3809ad8911f5d5581b3f046bd628417bface76 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/3d0e5252b8d0345ef494763ca31e3ddd666e02cb | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/4204f5c0312ba136181a6e148ffa0bfaf95a4cc1 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/852637d3ee56aed8ea3ee8948eda21eca406c051 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/4ff9d58d34758e9633078b37e8d5289b513ff80e | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.