github - ghsa-h7h5-4hm9-wwx3

ghsa-h7h5-4hm9-wwx3

Vulnerability from github

Published

2025-09-16 15:32

Modified

2025-09-16 15:32

Details

In the Linux kernel, the following vulnerability has been resolved:

Drivers: vmbus: Check for channel allocation before looking up relids

relid2channel() assumes vmbus channel array to be allocated when called. However, in cases such as kdump/kexec, not all relids will be reset by the host. When the second kernel boots and if the guest receives a vmbus interrupt during vmbus driver initialization before vmbus_connect() is called, before it finishes, or if it fails, the vmbus interrupt service routine is called which in turn calls relid2channel() and can cause a null pointer dereference.

Print a warning and error out in relid2channel() for a channel id that's invalid in the second kernel.

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{
  "affected": [],
  "aliases": [
    "CVE-2023-53273"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-16T08:15:36Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nDrivers: vmbus: Check for channel allocation before looking up relids\n\nrelid2channel() assumes vmbus channel array to be allocated when called.\nHowever, in cases such as kdump/kexec, not all relids will be reset by the host.\nWhen the second kernel boots and if the guest receives a vmbus interrupt during\nvmbus driver initialization before vmbus_connect() is called, before it finishes,\nor if it fails, the vmbus interrupt service routine is called which in turn calls\nrelid2channel() and can cause a null pointer dereference.\n\nPrint a warning and error out in relid2channel() for a channel id that\u0027s invalid\nin the second kernel.",
  "id": "GHSA-h7h5-4hm9-wwx3",
  "modified": "2025-09-16T15:32:32Z",
  "published": "2025-09-16T15:32:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53273"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/176c6b4889195fbe7016d9401175b48c5c9edf68"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1eb65c8687316c65140b48fad27133d583178e15"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8c3f0ae5435fd20bb1e3a8308488aa6ac33151ee"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a5c44f3446a0565139b7d8abc78f58b86c398123"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c373e49fbb87aa177819866ed9194ebc5414dfd6"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2023-53273 (GCVE-0-2023-53273)

Vulnerability from cvelistv5

Published

2025-09-16 08:11

Modified

2025-09-16 08:11

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: Drivers: vmbus: Check for channel allocation before looking up relids relid2channel() assumes vmbus channel array to be allocated when called. However, in cases such as kdump/kexec, not all relids will be reset by the host. When the second kernel boots and if the guest receives a vmbus interrupt during vmbus driver initialization before vmbus_connect() is called, before it finishes, or if it fails, the vmbus interrupt service routine is called which in turn calls relid2channel() and can cause a null pointer dereference. Print a warning and error out in relid2channel() for a channel id that's invalid in the second kernel.

References

▼	URL	Tags
	https://git.kernel.org/stable/c/176c6b4889195fbe7016d9401175b48c5c9edf68
	https://git.kernel.org/stable/c/c373e49fbb87aa177819866ed9194ebc5414dfd6
	https://git.kernel.org/stable/c/8c3f0ae5435fd20bb1e3a8308488aa6ac33151ee
	https://git.kernel.org/stable/c/a5c44f3446a0565139b7d8abc78f58b86c398123
	https://git.kernel.org/stable/c/1eb65c8687316c65140b48fad27133d583178e15

Impacted products

Vendor

Product

Version

▼

Linux

Version: 8b6a877c060ed6b86878fe66c7c6493a6054cf23
Version: 8b6a877c060ed6b86878fe66c7c6493a6054cf23
Version: 8b6a877c060ed6b86878fe66c7c6493a6054cf23
Version: 8b6a877c060ed6b86878fe66c7c6493a6054cf23
Version: 8b6a877c060ed6b86878fe66c7c6493a6054cf23

Linux

Version: 5.8

Show details on NVD website

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/hv/connection.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "176c6b4889195fbe7016d9401175b48c5c9edf68",
              "status": "affected",
              "version": "8b6a877c060ed6b86878fe66c7c6493a6054cf23",
              "versionType": "git"
            },
            {
              "lessThan": "c373e49fbb87aa177819866ed9194ebc5414dfd6",
              "status": "affected",
              "version": "8b6a877c060ed6b86878fe66c7c6493a6054cf23",
              "versionType": "git"
            },
            {
              "lessThan": "8c3f0ae5435fd20bb1e3a8308488aa6ac33151ee",
              "status": "affected",
              "version": "8b6a877c060ed6b86878fe66c7c6493a6054cf23",
              "versionType": "git"
            },
            {
              "lessThan": "a5c44f3446a0565139b7d8abc78f58b86c398123",
              "status": "affected",
              "version": "8b6a877c060ed6b86878fe66c7c6493a6054cf23",
              "versionType": "git"
            },
            {
              "lessThan": "1eb65c8687316c65140b48fad27133d583178e15",
              "status": "affected",
              "version": "8b6a877c060ed6b86878fe66c7c6493a6054cf23",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/hv/connection.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.8"
            },
            {
              "lessThan": "5.8",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.178",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.107",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.24",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.2.*",
              "status": "unaffected",
              "version": "6.2.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.178",
                  "versionStartIncluding": "5.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.107",
                  "versionStartIncluding": "5.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.24",
                  "versionStartIncluding": "5.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.2.11",
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                },
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nDrivers: vmbus: Check for channel allocation before looking up relids\n\nrelid2channel() assumes vmbus channel array to be allocated when called.\nHowever, in cases such as kdump/kexec, not all relids will be reset by the host.\nWhen the second kernel boots and if the guest receives a vmbus interrupt during\nvmbus driver initialization before vmbus_connect() is called, before it finishes,\nor if it fails, the vmbus interrupt service routine is called which in turn calls\nrelid2channel() and can cause a null pointer dereference.\n\nPrint a warning and error out in relid2channel() for a channel id that\u0027s invalid\nin the second kernel."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-16T08:11:08.792Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/176c6b4889195fbe7016d9401175b48c5c9edf68"
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        },
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        },
        {
          "url": "https://git.kernel.org/stable/c/1eb65c8687316c65140b48fad27133d583178e15"
        }
      ],
      "title": "Drivers: vmbus: Check for channel allocation before looking up relids",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53273",
    "datePublished": "2025-09-16T08:11:08.792Z",
    "dateReserved": "2025-09-16T08:09:37.989Z",
    "dateUpdated": "2025-09-16T08:11:08.792Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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