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RDMA/hfi1: Preserve unit 0 on allocation failure

Type: advisorySource: Official CVE List1 source record

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.

Announced Source revision 1
Original source ↗

CVE-2026-93103

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-93103

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "03b92789e5cfdac66805c1a98f1ec67336199d56",
        "lessThan": "852637d3ee56aed8ea3ee8948eda21eca406c051",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "03b92789e5cfdac66805c1a98f1ec67336199d56",
        "lessThan": "3d0e5252b8d0345ef494763ca31e3ddd666e02cb",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "03b92789e5cfdac66805c1a98f1ec67336199d56",
        "lessThan": "0feb29d434e6cc0ebefec4f77be014c85ad751b0",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "03b92789e5cfdac66805c1a98f1ec67336199d56",
        "lessThan": "3f1e196eb66b8cd3882e373794d6cea46f150a20",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "03b92789e5cfdac66805c1a98f1ec67336199d56",
        "lessThan": "4ff9d58d34758e9633078b37e8d5289b513ff80e",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "03b92789e5cfdac66805c1a98f1ec67336199d56",
        "lessThan": "fd4d3ad5f244a867166d1e2da7ece3d82878ec81",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "03b92789e5cfdac66805c1a98f1ec67336199d56",
        "lessThan": "4204f5c0312ba136181a6e148ffa0bfaf95a4cc1",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "03b92789e5cfdac66805c1a98f1ec67336199d56",
        "lessThan": "2e3809ad8911f5d5581b3f046bd628417bface76",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/infiniband/hw/hfi1/init.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "5.2"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "5.2",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.270",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.221",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.188",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.157",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.110",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.52",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.2.6",
        "versionType": "semver",
        "lessThanOrEqual": "7.2.*"
      },
      {
        "status": "unaffected",
        "version": "7.3",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/infiniband/hw/hfi1/init.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-93103

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#37831 · Revision 1
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Publisher date
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