Vulnerability-Lookup

GHSA-H4PV-4JH4-MXPF

Vulnerability from github – Published: 2026-05-28 12:30 – Updated: 2026-05-28 12:30

Details

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

ipmi: Add limits to event and receive message requests

The driver would just fetch events and receive messages until the BMC said it was done. To avoid issues with BMCs that never say they are done, add a limit of 10 fetches at a time.

In addition, an si interface has an attn state it can return from the hardware which is supposed to cause a flag fetch to see if the driver needs to fetch events or message or a few other things. If the attn bit gets stuck, it's a similar problem. So allow messages in between flag fetches so the driver itself doesn't get stuck.

This is a more general fix than the previous fix for the specific bad BMC, but should fix the more general issue of a BMC that won't stop saying it has data.

This has been there from the beginning of the driver. It's not a bug per-se, but it is accounting for bugs in BMCs.

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-46177"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-28T10:16:33Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nipmi: Add limits to event and receive message requests\n\nThe driver would just fetch events and receive messages until the\nBMC said it was done.  To avoid issues with BMCs that never say they are\ndone, add a limit of 10 fetches at a time.\n\nIn addition, an si interface has an attn state it can return from the\nhardware which is supposed to cause a flag fetch to see if the driver\nneeds to fetch events or message or a few other things.  If the attn\nbit gets stuck, it\u0027s a similar problem.  So allow messages in between\nflag fetches so the driver itself doesn\u0027t get stuck.\n\nThis is a more general fix than the previous fix for the specific bad\nBMC, but should fix the more general issue of a BMC that won\u0027t stop\nsaying it has data.\n\nThis has been there from the beginning of the driver.  It\u0027s not a bug\nper-se, but it is accounting for bugs in BMCs.",
  "id": "GHSA-h4pv-4jh4-mxpf",
  "modified": "2026-05-28T12:30:31Z",
  "published": "2026-05-28T12:30:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46177"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3d37d2165df9504ea99d9e6181552dc4d2d1ab37"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/67c44e0deba936d5edaebea356b4589eb43acb5c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c024167fb00489baee08c72182ca2e7dc5fb9f20"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c4cca236968683eb0d59abfb12d5c7e4d8514227"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e20212b431bef217d3886b86bbc90cc3ed00de68"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-46177 (GCVE-0-2026-46177)

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

Title

ipmi: Add limits to event and receive message requests

Summary

In the Linux kernel, the following vulnerability has been resolved: ipmi: Add limits to event and receive message requests The driver would just fetch events and receive messages until the BMC said it was done. To avoid issues with BMCs that never say they are done, add a limit of 10 fetches at a time. In addition, an si interface has an attn state it can return from the hardware which is supposed to cause a flag fetch to see if the driver needs to fetch events or message or a few other things. If the attn bit gets stuck, it's a similar problem. So allow messages in between flag fetches so the driver itself doesn't get stuck. This is a more general fix than the previous fix for the specific bad BMC, but should fix the more general issue of a BMC that won't stop saying it has data. This has been there from the beginning of the driver. It's not a bug per-se, but it is accounting for bugs in BMCs.

Severity

No CVSS data available.

Assigner

Linux

References

5 references

URL	Tags
https://git.kernel.org/stable/c/67c44e0deba936d5e…
https://git.kernel.org/stable/c/e20212b431bef217d…
https://git.kernel.org/stable/c/3d37d2165df9504ea…
https://git.kernel.org/stable/c/c024167fb00489bae…
https://git.kernel.org/stable/c/c4cca236968683eb0…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 67c44e0deba936d5edaebea356b4589eb43acb5c (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < e20212b431bef217d3886b86bbc90cc3ed00de68 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 3d37d2165df9504ea99d9e6181552dc4d2d1ab37 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < c024167fb00489baee08c72182ca2e7dc5fb9f20 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < c4cca236968683eb0d59abfb12d5c7e4d8514227 (git)
Linux	Linux	Affected: 2.6.12 Unaffected: 0 , < 2.6.12 (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/char/ipmi/ipmi_si_intf.c",
            "drivers/char/ipmi/ipmi_ssif.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "67c44e0deba936d5edaebea356b4589eb43acb5c",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "e20212b431bef217d3886b86bbc90cc3ed00de68",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "3d37d2165df9504ea99d9e6181552dc4d2d1ab37",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "c024167fb00489baee08c72182ca2e7dc5fb9f20",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "c4cca236968683eb0d59abfb12d5c7e4d8514227",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/char/ipmi/ipmi_si_intf.c",
            "drivers/char/ipmi/ipmi_ssif.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.12"
            },
            {
              "lessThan": "2.6.12",
              "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": "2.6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.88",
                  "versionStartIncluding": "2.6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.30",
                  "versionStartIncluding": "2.6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0.7",
                  "versionStartIncluding": "2.6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1-rc3",
                  "versionStartIncluding": "2.6.12",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipmi: Add limits to event and receive message requests\n\nThe driver would just fetch events and receive messages until the\nBMC said it was done.  To avoid issues with BMCs that never say they are\ndone, add a limit of 10 fetches at a time.\n\nIn addition, an si interface has an attn state it can return from the\nhardware which is supposed to cause a flag fetch to see if the driver\nneeds to fetch events or message or a few other things.  If the attn\nbit gets stuck, it\u0027s a similar problem.  So allow messages in between\nflag fetches so the driver itself doesn\u0027t get stuck.\n\nThis is a more general fix than the previous fix for the specific bad\nBMC, but should fix the more general issue of a BMC that won\u0027t stop\nsaying it has data.\n\nThis has been there from the beginning of the driver.  It\u0027s not a bug\nper-se, but it is accounting for bugs in BMCs."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-28T09:36:31.286Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/67c44e0deba936d5edaebea356b4589eb43acb5c"
        },
        {
          "url": "https://git.kernel.org/stable/c/e20212b431bef217d3886b86bbc90cc3ed00de68"
        },
        {
          "url": "https://git.kernel.org/stable/c/3d37d2165df9504ea99d9e6181552dc4d2d1ab37"
        },
        {
          "url": "https://git.kernel.org/stable/c/c024167fb00489baee08c72182ca2e7dc5fb9f20"
        },
        {
          "url": "https://git.kernel.org/stable/c/c4cca236968683eb0d59abfb12d5c7e4d8514227"
        }
      ],
      "title": "ipmi: Add limits to event and receive message requests",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-46177",
    "datePublished": "2026-05-28T09:36:31.286Z",
    "dateReserved": "2026-05-13T15:03:33.103Z",
    "dateUpdated": "2026-05-28T09:36:31.286Z",
    "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

GHSA-H4PV-4JH4-MXPF

CVE-2026-46177 (GCVE-0-2026-46177)

Tags

Sightings

Nomenclature