Vulnerability-Lookup

FKIE_CVE-2026-46189

Vulnerability from fkie_nvd - Published: 2026-05-28 10:16 - Updated: 2026-05-28 13:44

Severity

Summary

In the Linux kernel, the following vulnerability has been resolved: RDMA/vmw_pvrdma: Fix double free on pvrdma_alloc_ucontext() error path Sashiko points out that pvrdma_uar_free() is already called within pvrdma_dealloc_ucontext(), so calling it before triggers a double free.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/0c63333ff97bd1275294fd12840a0efe9d7a4c59
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/45d25e3ec17900bf5a9d6876ff16ceee31c4c0e0
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/935ee27d0904aa944cbcc979094c20e5ef62eead
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/e38e86995df27f1f854063dab1f0c6a513db3faf
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ecc36a82ecfcfdf3c6606d209f22ec5543c410e0

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/vmw_pvrdma: Fix double free on pvrdma_alloc_ucontext() error path\n\nSashiko points out that pvrdma_uar_free() is already called within\npvrdma_dealloc_ucontext(), so calling it before triggers a double free."
    }
  ],
  "id": "CVE-2026-46189",
  "lastModified": "2026-05-28T13:44:01.663",
  "metrics": {},
  "published": "2026-05-28T10:16:34.540",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/0c63333ff97bd1275294fd12840a0efe9d7a4c59"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/45d25e3ec17900bf5a9d6876ff16ceee31c4c0e0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/935ee27d0904aa944cbcc979094c20e5ef62eead"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e38e86995df27f1f854063dab1f0c6a513db3faf"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ecc36a82ecfcfdf3c6606d209f22ec5543c410e0"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}

CVE-2026-46189 (GCVE-0-2026-46189)

Vulnerability from cvelistv5 – Published: 2026-05-28 09:36 – Updated: 2026-05-28 09:36

Title

RDMA/vmw_pvrdma: Fix double free on pvrdma_alloc_ucontext() error path

Summary

Severity

No CVSS data available.

Assigner

Linux

References

5 references

URL	Tags
https://git.kernel.org/stable/c/ecc36a82ecfcfdf3c…
https://git.kernel.org/stable/c/45d25e3ec17900bf5…
https://git.kernel.org/stable/c/0c63333ff97bd1275…
https://git.kernel.org/stable/c/935ee27d0904aa944…
https://git.kernel.org/stable/c/e38e86995df27f1f8…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1 , < ecc36a82ecfcfdf3c6606d209f22ec5543c410e0 (git) Affected: 29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1 , < 45d25e3ec17900bf5a9d6876ff16ceee31c4c0e0 (git) Affected: 29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1 , < 0c63333ff97bd1275294fd12840a0efe9d7a4c59 (git) Affected: 29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1 , < 935ee27d0904aa944cbcc979094c20e5ef62eead (git) Affected: 29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1 , < e38e86995df27f1f854063dab1f0c6a513db3faf (git)
Linux	Linux	Affected: 4.10 Unaffected: 0 , < 4.10 (semver) Unaffected: 6.6.140 , ≤ 6.6.* (semver) Unaffected: 6.12.88 , ≤ 6.12.* (semver) Unaffected: 6.18.30 , ≤ 6.18.* (semver) Unaffected: 7.0.7 , ≤ 7.0.* (semver) Unaffected: 7.1-rc3 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "ecc36a82ecfcfdf3c6606d209f22ec5543c410e0",
              "status": "affected",
              "version": "29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1",
              "versionType": "git"
            },
            {
              "lessThan": "45d25e3ec17900bf5a9d6876ff16ceee31c4c0e0",
              "status": "affected",
              "version": "29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1",
              "versionType": "git"
            },
            {
              "lessThan": "0c63333ff97bd1275294fd12840a0efe9d7a4c59",
              "status": "affected",
              "version": "29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1",
              "versionType": "git"
            },
            {
              "lessThan": "935ee27d0904aa944cbcc979094c20e5ef62eead",
              "status": "affected",
              "version": "29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1",
              "versionType": "git"
            },
            {
              "lessThan": "e38e86995df27f1f854063dab1f0c6a513db3faf",
              "status": "affected",
              "version": "29c8d9eba550c6d73d17cc1618a9f5f2a7345aa1",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.10"
            },
            {
              "lessThan": "4.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.140",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.88",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.30",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1-rc3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.140",
                  "versionStartIncluding": "4.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.88",
                  "versionStartIncluding": "4.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.30",
                  "versionStartIncluding": "4.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0.7",
                  "versionStartIncluding": "4.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1-rc3",
                  "versionStartIncluding": "4.10",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/vmw_pvrdma: Fix double free on pvrdma_alloc_ucontext() error path\n\nSashiko points out that pvrdma_uar_free() is already called within\npvrdma_dealloc_ucontext(), so calling it before triggers a double free."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-28T09:36:43.205Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/ecc36a82ecfcfdf3c6606d209f22ec5543c410e0"
        },
        {
          "url": "https://git.kernel.org/stable/c/45d25e3ec17900bf5a9d6876ff16ceee31c4c0e0"
        },
        {
          "url": "https://git.kernel.org/stable/c/0c63333ff97bd1275294fd12840a0efe9d7a4c59"
        },
        {
          "url": "https://git.kernel.org/stable/c/935ee27d0904aa944cbcc979094c20e5ef62eead"
        },
        {
          "url": "https://git.kernel.org/stable/c/e38e86995df27f1f854063dab1f0c6a513db3faf"
        }
      ],
      "title": "RDMA/vmw_pvrdma: Fix double free on pvrdma_alloc_ucontext() error path",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-46189",
    "datePublished": "2026-05-28T09:36:43.205Z",
    "dateReserved": "2026-05-13T15:03:33.104Z",
    "dateUpdated": "2026-05-28T09:36:43.205Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2026-46189

CVE-2026-46189 (GCVE-0-2026-46189)

Tags

Sightings

Nomenclature