CVE-2026-93104

Full vulnerability record from the local CVENow database.

Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/rvt: Return NULL after port allocation failure rvt_alloc_device() deallocates the IB device when its port array cannot be allocated but then returns the pointer to the released allocation. Callers treat any non-NULL value as valid and dereference it, resulting in a use-after-free. Return NULL immediately after deallocation so callers can propagate the allocation failure.

Severity

Not scored

CVSS score

Not available

Vulnerability status

Received

Source identifier

416baaa9-dc9f-4396-8d5f-8c081fb06d67

Published

2026-09-17 17:18:04.740000

Last modified

2026-10-30 13:20:57.380000

View original CVE JSON

{
  "id": "CVE-2026-93104",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2026-09-17T17:18:04.740",
  "lastModified": "2026-10-30T13:20:57.380",
  "vulnStatus": "Received",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/rvt: Return NULL after port allocation failure\n\nrvt_alloc_device() deallocates the IB device when its port array cannot\nbe allocated but then returns the pointer to the released allocation.\nCallers treat any non-NULL value as valid and dereference it, resulting\nin a use-after-free.\n\nReturn NULL immediately after deallocation so callers can propagate the\nallocation failure."
    }
  ],
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "drivers/infiniband/sw/rdmavt/vt.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "ff6acd69518e0a84bd9c9b7f1bd4313f7076db97",
              "lessThan": "32d2cdb0f3cac430b04124c3b7248851fe2037f8",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "ff6acd69518e0a84bd9c9b7f1bd4313f7076db97",
              "lessThan": "b7129930d1ec46c03a0de07fdce6c29f75795006",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "ff6acd69518e0a84bd9c9b7f1bd4313f7076db97",
              "lessThan": "5a1a7a5e2fe1a15824fa9ae5edd8f008259471d1",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "ff6acd69518e0a84bd9c9b7f1bd4313f7076db97",
              "lessThan": "80968b42d13080bf7bc1f3ee17fef126ce2ad98f",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "ff6acd69518e0a84bd9c9b7f1bd4313f7076db97",
              "lessThan": "b1e1b25723af44328524c7b54433e4bf0ab9930c",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "ff6acd69518e0a84bd9c9b7f1bd4313f7076db97",
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              "versionType": "git",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "programFiles": [
            "drivers/infiniband/sw/rdmavt/vt.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "4.6",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "4.6",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.1.191",
              "lessThanOrEqual": "6.1.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.6.160",
              "lessThanOrEqual": "6.6.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.12.114",
              "lessThanOrEqual": "6.12.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.18.57",
              "lessThanOrEqual": "6.18.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.2.6",
              "lessThanOrEqual": "7.2.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.3",
              "lessThanOrEqual": "*",
              "versionType": "original_commit_for_fix",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/2982eaf3b9d2d953318c74cd6f1b7576ea6d7b1f",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/32d2cdb0f3cac430b04124c3b7248851fe2037f8",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/5a1a7a5e2fe1a15824fa9ae5edd8f008259471d1",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/80968b42d13080bf7bc1f3ee17fef126ce2ad98f",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b1e1b25723af44328524c7b54433e4bf0ab9930c",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b7129930d1ec46c03a0de07fdce6c29f75795006",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}