CVE-2026-64224 (GCVE-0-2026-64224)

Vulnerability from cvelistv5 – Published: 2026-07-24 15:23 – Updated: 2026-07-24 15:23
VLAI
Title
octeontx2-pf: fix double free in rvu_rep_rsrc_init()
Summary
In the Linux kernel, the following vulnerability has been resolved: octeontx2-pf: fix double free in rvu_rep_rsrc_init() rvu_rep_rsrc_init() allocates queue memory before calling otx2_init_hw_resources(). When hardware resource setup fails, otx2_init_hw_resources() already unwinds the partially initialized SQ, CQ, and aura state before returning an error. The representor error path then calls otx2_free_hw_resources() again and can free the same resources a second time. Fix this by splitting the cleanup labels so that a failure from otx2_init_hw_resources() only releases queue memory. Keep the otx2_free_hw_resources() call for failures that happen after hardware resource initialization completed successfully. The bug was first flagged by an experimental analysis tool we are developing for kernel memory-management bugs while analyzing v6.13-rc1. The tool is still under development and is not yet publicly available. Manual inspection confirms that the bug is still present in v7.1-rc3. Runtime validation was not performed because reproducing this path requires OcteonTX2 representor hardware.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 3937b7308d4fce2793fa7fa56ed0faf0f8b6dc7a , < 8864b664d0443ecb8e56690e5546fcda5fe5e81b (git)
Affected: 3937b7308d4fce2793fa7fa56ed0faf0f8b6dc7a , < eb72a65f2bb2cc059e2ca5d83de01fdf3ea602ad (git)
Affected: 3937b7308d4fce2793fa7fa56ed0faf0f8b6dc7a , < e8fb3de2a8effcaf62bec2c56b93d8bb480371d1 (git)
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Linux Linux Affected: 6.13
Unaffected: 0 , < 6.13 (semver)
Unaffected: 6.18.34 , ≤ 6.18.* (semver)
Unaffected: 7.0.11 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
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{
  "containers": {
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        {
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          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/marvell/octeontx2/nic/rep.c"
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              "negate": false,
              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nocteontx2-pf: fix double free in rvu_rep_rsrc_init()\n\nrvu_rep_rsrc_init() allocates queue memory before calling\notx2_init_hw_resources(). When hardware resource setup fails,\notx2_init_hw_resources() already unwinds the partially initialized\nSQ, CQ, and aura state before returning an error. The representor\nerror path then calls otx2_free_hw_resources() again and can free\nthe same resources a second time.\n\nFix this by splitting the cleanup labels so that a failure from\notx2_init_hw_resources() only releases queue memory. Keep the\notx2_free_hw_resources() call for failures that happen after\nhardware resource initialization completed successfully.\n\nThe bug was first flagged by an experimental analysis tool we are\ndeveloping for kernel memory-management bugs while analyzing\nv6.13-rc1. The tool is still under development and is not yet publicly\navailable. Manual inspection confirms that the bug is still\npresent in v7.1-rc3.\n\nRuntime validation was not performed because reproducing this path\nrequires OcteonTX2 representor hardware."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-24T15:23:09.209Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/8864b664d0443ecb8e56690e5546fcda5fe5e81b"
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        },
        {
          "url": "https://git.kernel.org/stable/c/e8fb3de2a8effcaf62bec2c56b93d8bb480371d1"
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      ],
      "title": "octeontx2-pf: fix double free in rvu_rep_rsrc_init()",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-64224",
    "datePublished": "2026-07-24T15:23:09.209Z",
    "dateReserved": "2026-07-19T15:36:31.770Z",
    "dateUpdated": "2026-07-24T15:23:09.209Z",
    "state": "PUBLISHED"
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      "epss": "0.00166",
      "percentile": "0.06299"
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    "redhat_vex": {
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      "cve": "CVE-2026-64224",
      "id": "CVE-2026-64224",
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      "product_status:known_affected": "184",
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      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: octeontx2-pf: fix double free in rvu_rep_rsrc_init()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-64224.json",
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    },
    "suse_vex": {
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      "current_release_date": "2026-07-28T17:09:02Z",
      "cve": "CVE-2026-64224",
      "id": "CVE-2026-64224",
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      "product_status:known_affected": "84",
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      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-64224",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-64224.json",
      "version": "3"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.


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