Vulnerability-Lookup

GHSA-CWXJ-GWRV-324J

Vulnerability from github – Published: 2026-08-15 06:32 – Updated: 2026-08-17 06:33

Details

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

ice: fix FDIR CTRL VSI resource leak in ice_reset_all_vfs()

Resetting all VFs causes resource leak on VFs with FDIR filters enabled as CTRL VSIs are only invalidated and not freed. Fix by using ice_vf_ctrl_vsi_release() instead of ice_vf_ctrl_invalidate_vsi() which aligns behavior with the ice_reset_vf() function.

Reproduction: echo 1 > /sys/class/net/$pf/device/sriov_numvfs ethtool -N $vf flow-type ether proto 0x9000 action 0 echo 1 > /sys/class/net/$pf/device/reset

Severity

7.1 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-72425"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-15T06:22:16Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nice: fix FDIR CTRL VSI resource leak in ice_reset_all_vfs()\n\nResetting all VFs causes resource leak on VFs with FDIR filters\nenabled as CTRL VSIs are only invalidated and not freed. Fix by using\nice_vf_ctrl_vsi_release() instead of ice_vf_ctrl_invalidate_vsi() which\naligns behavior with the ice_reset_vf() function.\n\nReproduction:\n  echo 1 \u003e /sys/class/net/$pf/device/sriov_numvfs\n  ethtool -N $vf flow-type ether proto 0x9000 action 0\n  echo 1 \u003e /sys/class/net/$pf/device/reset",
  "id": "GHSA-cwxj-gwrv-324j",
  "modified": "2026-08-17T06:33:29Z",
  "published": "2026-08-15T06:32:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72425"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/335c2dd21ad9d520102906f96edb99fd5e89ac32"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/87a042e45bf4870dc75ea05b4fc0286abecb2a4d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b1fc5bafbc5f84df457b6f987ac993e0802f8d93"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b409a9dc37db8bd798122fc5bcdcfaccaf80db1e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dd6d8e4412f805937f61f00bbfdfe831978be235"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ebbe8868cf473f698e0fbaf436d2618b2bcda806"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-72425 (GCVE-0-2026-72425)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:56 – Updated: 2026-08-17 05:44

Title

ice: fix FDIR CTRL VSI resource leak in ice_reset_all_vfs()

Summary

In the Linux kernel, the following vulnerability has been resolved: ice: fix FDIR CTRL VSI resource leak in ice_reset_all_vfs() Resetting all VFs causes resource leak on VFs with FDIR filters enabled as CTRL VSIs are only invalidated and not freed. Fix by using ice_vf_ctrl_vsi_release() instead of ice_vf_ctrl_invalidate_vsi() which aligns behavior with the ice_reset_vf() function. Reproduction: echo 1 > /sys/class/net/$pf/device/sriov_numvfs ethtool -N $vf flow-type ether proto 0x9000 action 0 echo 1 > /sys/class/net/$pf/device/reset

Severity

7.1 (High)


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

Assigner

Linux mitre root

References

6 references

URL	Tags
https://git.kernel.org/stable/c/b409a9dc37db8bd79…
https://git.kernel.org/stable/c/335c2dd21ad9d5201…
https://git.kernel.org/stable/c/87a042e45bf4870dc…
https://git.kernel.org/stable/c/dd6d8e4412f805937…
https://git.kernel.org/stable/c/b1fc5bafbc5f84df4…
https://git.kernel.org/stable/c/ebbe8868cf473f698…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: da62c5ff9dcdac67204d6647f3cd43ad931a59f4 , < b409a9dc37db8bd798122fc5bcdcfaccaf80db1e (git) Affected: da62c5ff9dcdac67204d6647f3cd43ad931a59f4 , < 335c2dd21ad9d520102906f96edb99fd5e89ac32 (git) Affected: da62c5ff9dcdac67204d6647f3cd43ad931a59f4 , < 87a042e45bf4870dc75ea05b4fc0286abecb2a4d (git) Affected: da62c5ff9dcdac67204d6647f3cd43ad931a59f4 , < dd6d8e4412f805937f61f00bbfdfe831978be235 (git) Affected: da62c5ff9dcdac67204d6647f3cd43ad931a59f4 , < b1fc5bafbc5f84df457b6f987ac993e0802f8d93 (git) Affected: da62c5ff9dcdac67204d6647f3cd43ad931a59f4 , < ebbe8868cf473f698e0fbaf436d2618b2bcda806 (git)
Linux	Linux	Affected: 5.13 Unaffected: 0 , < 5.13 (semver) Unaffected: 6.1.178 , ≤ 6.1.* (semver) Unaffected: 6.6.145 , ≤ 6.6.* (semver) Unaffected: 6.12.97 , ≤ 6.12.* (semver) Unaffected: 6.18.40 , ≤ 6.18.* (semver) Unaffected: 7.1.5 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/intel/ice/ice_vf_lib.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "b409a9dc37db8bd798122fc5bcdcfaccaf80db1e",
              "status": "affected",
              "version": "da62c5ff9dcdac67204d6647f3cd43ad931a59f4",
              "versionType": "git"
            },
            {
              "lessThan": "335c2dd21ad9d520102906f96edb99fd5e89ac32",
              "status": "affected",
              "version": "da62c5ff9dcdac67204d6647f3cd43ad931a59f4",
              "versionType": "git"
            },
            {
              "lessThan": "87a042e45bf4870dc75ea05b4fc0286abecb2a4d",
              "status": "affected",
              "version": "da62c5ff9dcdac67204d6647f3cd43ad931a59f4",
              "versionType": "git"
            },
            {
              "lessThan": "dd6d8e4412f805937f61f00bbfdfe831978be235",
              "status": "affected",
              "version": "da62c5ff9dcdac67204d6647f3cd43ad931a59f4",
              "versionType": "git"
            },
            {
              "lessThan": "b1fc5bafbc5f84df457b6f987ac993e0802f8d93",
              "status": "affected",
              "version": "da62c5ff9dcdac67204d6647f3cd43ad931a59f4",
              "versionType": "git"
            },
            {
              "lessThan": "ebbe8868cf473f698e0fbaf436d2618b2bcda806",
              "status": "affected",
              "version": "da62c5ff9dcdac67204d6647f3cd43ad931a59f4",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/intel/ice/ice_vf_lib.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.13"
            },
            {
              "lessThan": "5.13",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.178",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.145",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.97",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.178",
                  "versionStartIncluding": "5.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.145",
                  "versionStartIncluding": "5.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.97",
                  "versionStartIncluding": "5.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.40",
                  "versionStartIncluding": "5.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.5",
                  "versionStartIncluding": "5.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "5.13",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nice: fix FDIR CTRL VSI resource leak in ice_reset_all_vfs()\n\nResetting all VFs causes resource leak on VFs with FDIR filters\nenabled as CTRL VSIs are only invalidated and not freed. Fix by using\nice_vf_ctrl_vsi_release() instead of ice_vf_ctrl_invalidate_vsi() which\naligns behavior with the ice_reset_vf() function.\n\nReproduction:\n  echo 1 \u003e /sys/class/net/$pf/device/sriov_numvfs\n  ethtool -N $vf flow-type ether proto 0x9000 action 0\n  echo 1 \u003e /sys/class/net/$pf/device/reset"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The bug is reached via local host interfaces only: VF virtchnl mailbox messages (VIRTCHNL_OP_ADD_FDIR_FILTER) to create per-VF FDIR ctrl VSIs, and PF-wide reset paths (PCI sysfs reset, ethtool-driven PFR/CORER/GLOBR) that call ice_reset_all_vfs(); no network packet receive path is involved.\nAC:L - Once a VF has created an FDIR rule (which allocates the per-VF ctrl VSI), each PF-wide reset deterministically leaks that ctrl VSI because ice_reset_all_vfs() only invalidated ctrl_vsi_idx instead of calling ice_vf_ctrl_vsi_release(); the commit reproduces this reliably and the attacker controls the FDIR setup side of the race.\nPR:N - No host root or CAP_SYS_ADMIN is required on the vulnerable host: a tenant with an assigned SR-IOV VF can negotiate VIRTCHNL_VF_OFFLOAD_FDIR_PF and send VIRTCHNL_OP_ADD_FDIR_FILTER over the VF mailbox to create the ctrl VSI; PF-wide resets occur during normal firmware/PCI/driver recovery without further host credentials.\nUI:N - Exploitation does not require any victim user action such as opening files or clicking links; a malicious VM tenant programs FDIR filters via the standard iAVF virtchnl interface and the leak triggers automatically on subsequent PF-wide reset events.\nS:C - The vulnerable ice driver runs in the host kernel but is triggered from an SR-IOV VF guest security domain; leaked ctrl VSIs consume finite pf-\u003evsi slots and hardware VSI resources on the host, degrading or denying NIC functionality for the hypervisor and other VMs on the same PF.\nC:N - This is a kernel resource leak (orphaned ICE_VSI_CTRL structures and associated queue/MSI-X/FDIR hardware resources) without out-of-bounds read, use-after-free, or other memory disclosure primitive; no confidential data is exposed.\nI:N - The flaw only fails to call ice_vsi_release()/ice_vsi_delete_from_hw() for per-VF ctrl VSIs during ice_reset_all_vfs(); it does not corrupt memory, modify data, or provide write or code-execution primitives.\nA:H - Each leaked ctrl VSI permanently consumes a limited VSI slot (pf-\u003enum_alloc_vsi) and hardware resources; repeated PF-wide resets with FDIR-enabled VFs can exhaust the VSI pool causing ice_vsi_alloc() failure and denial of network service for the host and all co-resident VFs on the NIC."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:44:05.008Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/b409a9dc37db8bd798122fc5bcdcfaccaf80db1e"
        },
        {
          "url": "https://git.kernel.org/stable/c/335c2dd21ad9d520102906f96edb99fd5e89ac32"
        },
        {
          "url": "https://git.kernel.org/stable/c/87a042e45bf4870dc75ea05b4fc0286abecb2a4d"
        },
        {
          "url": "https://git.kernel.org/stable/c/dd6d8e4412f805937f61f00bbfdfe831978be235"
        },
        {
          "url": "https://git.kernel.org/stable/c/b1fc5bafbc5f84df457b6f987ac993e0802f8d93"
        },
        {
          "url": "https://git.kernel.org/stable/c/ebbe8868cf473f698e0fbaf436d2618b2bcda806"
        }
      ],
      "title": "ice: fix FDIR CTRL VSI resource leak in ice_reset_all_vfs()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-72425",
    "datePublished": "2026-08-15T05:56:42.959Z",
    "dateReserved": "2026-08-09T03:40:39.928Z",
    "dateUpdated": "2026-08-17T05:44:05.008Z",
    "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.

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-CWXJ-GWRV-324J

CVE-2026-72425 (GCVE-0-2026-72425)

Tags

Sightings

Nomenclature