Vulnerability-Lookup

GHSA-3V7P-2JR8-QJ72

Vulnerability from github – Published: 2025-10-23 12:31 – Updated: 2025-10-23 12:31

Details

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

x86/speculation: Fill RSB on vmexit for IBRS

Prevent RSB underflow/poisoning attacks with RSB. While at it, add a bunch of comments to attempt to document the current state of tribal knowledge about RSB attacks and what exactly is being mitigated.

Severity

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2022-49611"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:01:36Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/speculation: Fill RSB on vmexit for IBRS\n\nPrevent RSB underflow/poisoning attacks with RSB.  While at it, add a\nbunch of comments to attempt to document the current state of tribal\nknowledge about RSB attacks and what exactly is being mitigated.",
  "id": "GHSA-3v7p-2jr8-qj72",
  "modified": "2025-10-23T12:31:15Z",
  "published": "2025-10-23T12:31:15Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49611"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/17a9fc4a7b91f8599223631bb6ae6416bc0de1c0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3d323b99ff5c8c57005184056d65f6af5b0479d8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4d7f72b6e1bc630bec7e4cd51814bc2b092bf153"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8c38306e2e9257af4af2819aa287a4711ff36329"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8d5cff499a6d740c91ff37963907e0e983c37f0f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9756bba28470722dacb79ffce554336dd1f6a6cd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f744b88dfc201bf8092833ec70b23c720188b527"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2022-49611 (GCVE-0-2022-49611)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:23 – Updated: 2026-05-23 15:22

Title

x86/speculation: Fill RSB on vmexit for IBRS

Summary

In the Linux kernel, the following vulnerability has been resolved: x86/speculation: Fill RSB on vmexit for IBRS Prevent RSB underflow/poisoning attacks with RSB. While at it, add a bunch of comments to attempt to document the current state of tribal knowledge about RSB attacks and what exactly is being mitigated.

Severity

No CVSS data available.

Assigner

Linux CNA under the mitre root

CNA scorecard D 54/100 over 6618 records in the last 180 days details

References

7 references

URL	Tags
https://git.kernel.org/stable/c/3d323b99ff5c8c570…
https://git.kernel.org/stable/c/f744b88dfc201bf80…
https://git.kernel.org/stable/c/17a9fc4a7b91f8599…
https://git.kernel.org/stable/c/4d7f72b6e1bc630be…
https://git.kernel.org/stable/c/8d5cff499a6d740c9…
https://git.kernel.org/stable/c/8c38306e2e9257af4…
https://git.kernel.org/stable/c/9756bba28470722da…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: b9cdaaf0a3becc52e8b4662fef28c452c4f009b4 , < 3d323b99ff5c8c57005184056d65f6af5b0479d8 (git) Affected: 117cc7a908c83697b0b737d15ae1eb5943afe35b , < f744b88dfc201bf8092833ec70b23c720188b527 (git) Affected: 117cc7a908c83697b0b737d15ae1eb5943afe35b , < 17a9fc4a7b91f8599223631bb6ae6416bc0de1c0 (git) Affected: 117cc7a908c83697b0b737d15ae1eb5943afe35b , < 4d7f72b6e1bc630bec7e4cd51814bc2b092bf153 (git) Affected: 117cc7a908c83697b0b737d15ae1eb5943afe35b , < 8d5cff499a6d740c91ff37963907e0e983c37f0f (git) Affected: 117cc7a908c83697b0b737d15ae1eb5943afe35b , < 8c38306e2e9257af4af2819aa287a4711ff36329 (git) Affected: 117cc7a908c83697b0b737d15ae1eb5943afe35b , < 9756bba28470722dacb79ffce554336dd1f6a6cd (git) Affected: 68d1f7a3f1a35639a563bbad768d5df885b4ff05 (git) Affected: 20e080e2752d108388d386ecc0b33d7797dfb18f (git) Affected: eebc3f8adee0a6f43a4789ef0bf5c5b35de8cfe4 (git) Affected: c1ddd99a029636e234a800f28790a60d6ac0318f (git) Affected: 4.14.14 , < 4.14.297 (semver) Affected: 3.2.101 , < 3.3 (semver) Affected: 3.16.56 , < 3.17 (semver) Affected: 4.4.113 , < 4.5 (semver) Affected: 4.9.77 , < 4.10 (semver)
Linux	Linux	Affected: 4.15 Unaffected: 0 , < 4.15 (semver) Unaffected: 4.14.297 , ≤ 4.14.* (semver) Unaffected: 4.19.266 , ≤ 4.19.* (semver) Unaffected: 5.4.217 , ≤ 5.4.* (semver) Unaffected: 5.10.133 , ≤ 5.10.* (semver) Unaffected: 5.15.57 , ≤ 5.15.* (semver) Unaffected: 5.18.14 , ≤ 5.18.* (semver) Unaffected: 5.19 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/x86/include/asm/cpufeatures.h",
            "arch/x86/kernel/cpu/bugs.c",
            "arch/x86/kvm/vmx/vmenter.S"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "3d323b99ff5c8c57005184056d65f6af5b0479d8",
              "status": "affected",
              "version": "b9cdaaf0a3becc52e8b4662fef28c452c4f009b4",
              "versionType": "git"
            },
            {
              "lessThan": "f744b88dfc201bf8092833ec70b23c720188b527",
              "status": "affected",
              "version": "117cc7a908c83697b0b737d15ae1eb5943afe35b",
              "versionType": "git"
            },
            {
              "lessThan": "17a9fc4a7b91f8599223631bb6ae6416bc0de1c0",
              "status": "affected",
              "version": "117cc7a908c83697b0b737d15ae1eb5943afe35b",
              "versionType": "git"
            },
            {
              "lessThan": "4d7f72b6e1bc630bec7e4cd51814bc2b092bf153",
              "status": "affected",
              "version": "117cc7a908c83697b0b737d15ae1eb5943afe35b",
              "versionType": "git"
            },
            {
              "lessThan": "8d5cff499a6d740c91ff37963907e0e983c37f0f",
              "status": "affected",
              "version": "117cc7a908c83697b0b737d15ae1eb5943afe35b",
              "versionType": "git"
            },
            {
              "lessThan": "8c38306e2e9257af4af2819aa287a4711ff36329",
              "status": "affected",
              "version": "117cc7a908c83697b0b737d15ae1eb5943afe35b",
              "versionType": "git"
            },
            {
              "lessThan": "9756bba28470722dacb79ffce554336dd1f6a6cd",
              "status": "affected",
              "version": "117cc7a908c83697b0b737d15ae1eb5943afe35b",
              "versionType": "git"
            },
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              "versionType": "git"
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            {
              "status": "affected",
              "version": "20e080e2752d108388d386ecc0b33d7797dfb18f",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "eebc3f8adee0a6f43a4789ef0bf5c5b35de8cfe4",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "c1ddd99a029636e234a800f28790a60d6ac0318f",
              "versionType": "git"
            },
            {
              "lessThan": "4.14.297",
              "status": "affected",
              "version": "4.14.14",
              "versionType": "semver"
            },
            {
              "lessThan": "3.3",
              "status": "affected",
              "version": "3.2.101",
              "versionType": "semver"
            },
            {
              "lessThan": "3.17",
              "status": "affected",
              "version": "3.16.56",
              "versionType": "semver"
            },
            {
              "lessThan": "4.5",
              "status": "affected",
              "version": "4.4.113",
              "versionType": "semver"
            },
            {
              "lessThan": "4.10",
              "status": "affected",
              "version": "4.9.77",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "arch/x86/include/asm/cpufeatures.h",
            "arch/x86/kernel/cpu/bugs.c",
            "arch/x86/kvm/vmx/vmenter.S"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.15"
            },
            {
              "lessThan": "4.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.297",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.266",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.217",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.133",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.57",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.18.*",
              "status": "unaffected",
              "version": "5.18.14",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.14.297",
                  "versionStartIncluding": "4.14.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.266",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.217",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.133",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
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                  "versionEndExcluding": "5.15.57",
                  "versionStartIncluding": "4.15",
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                },
                {
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                  "versionStartIncluding": "3.2.101",
                  "vulnerable": true
                },
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        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-23T15:22:33.348Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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        },
        {
          "url": "https://git.kernel.org/stable/c/f744b88dfc201bf8092833ec70b23c720188b527"
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          "url": "https://git.kernel.org/stable/c/17a9fc4a7b91f8599223631bb6ae6416bc0de1c0"
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    "cveId": "CVE-2022-49611",
    "datePublished": "2025-02-26T02:23:33.779Z",
    "dateReserved": "2025-02-26T02:21:30.418Z",
    "dateUpdated": "2026-05-23T15:22:33.348Z",
    "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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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GHSA-3V7P-2JR8-QJ72

CVE-2022-49611 (GCVE-0-2022-49611)

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