Vulnerability-Lookup

GHSA-WXJ9-X4VW-8W2J

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:

riscv: kvm: fix vector context allocation leak

When the second kzalloc (host_context.vector.datap) fails in kvm_riscv_vcpu_alloc_vector_context, the first allocation (guest_context.vector.datap) is leaked. Free it before returning.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-46171"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-28T10:16:32Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nriscv: kvm: fix vector context allocation leak\n\nWhen the second kzalloc (host_context.vector.datap) fails in\nkvm_riscv_vcpu_alloc_vector_context, the first allocation\n(guest_context.vector.datap) is leaked. Free it before returning.",
  "id": "GHSA-wxj9-x4vw-8w2j",
  "modified": "2026-05-28T12:30:31Z",
  "published": "2026-05-28T12:30:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46171"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1d57ab45ec5c0e22789de793bcf2a31ad6fb7d98"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b7c958d7c1eb1cb9b2be7b5ee4129fcd66cec978"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bd62c0f61bc722a097417401030c596cea8e21aa"
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  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-46171 (GCVE-0-2026-46171)

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

Title

riscv: kvm: fix vector context allocation leak

Summary

In the Linux kernel, the following vulnerability has been resolved: riscv: kvm: fix vector context allocation leak When the second kzalloc (host_context.vector.datap) fails in kvm_riscv_vcpu_alloc_vector_context, the first allocation (guest_context.vector.datap) is leaked. Free it before returning.

Severity

No CVSS data available.

Assigner

Linux

References

3 references

URL	Tags
https://git.kernel.org/stable/c/bd62c0f61bc722a09…
https://git.kernel.org/stable/c/1d57ab45ec5c0e227…
https://git.kernel.org/stable/c/b7c958d7c1eb1cb9b…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 0f4b82579716b12bb88257bd7ea80f25c791fb2c , < bd62c0f61bc722a097417401030c596cea8e21aa (git) Affected: 0f4b82579716b12bb88257bd7ea80f25c791fb2c , < 1d57ab45ec5c0e22789de793bcf2a31ad6fb7d98 (git) Affected: 0f4b82579716b12bb88257bd7ea80f25c791fb2c , < b7c958d7c1eb1cb9b2be7b5ee4129fcd66cec978 (git)
Linux	Linux	Affected: 6.5 Unaffected: 0 , < 6.5 (semver) Unaffected: 6.18.30 , ≤ 6.18.* (semver) Unaffected: 7.0.7 , ≤ 7.0.* (semver) Unaffected: 7.1-rc1 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/riscv/kvm/vcpu_vector.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "lessThan": "bd62c0f61bc722a097417401030c596cea8e21aa",
              "status": "affected",
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              "versionType": "git"
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              "version": "0f4b82579716b12bb88257bd7ea80f25c791fb2c",
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              "versionType": "git"
            }
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        },
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          "product": "Linux",
          "programFiles": [
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          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.5"
            },
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
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            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
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                }
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      "descriptions": [
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nriscv: kvm: fix vector context allocation leak\n\nWhen the second kzalloc (host_context.vector.datap) fails in\nkvm_riscv_vcpu_alloc_vector_context, the first allocation\n(guest_context.vector.datap) is leaked. Free it before returning."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-28T09:36:25.966Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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    "datePublished": "2026-05-28T09:36:25.966Z",
    "dateReserved": "2026-05-13T15:03:33.103Z",
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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-WXJ9-X4VW-8W2J

CVE-2026-46171 (GCVE-0-2026-46171)

Tags

Sightings

Nomenclature