Vulnerability-Lookup

FKIE_CVE-2026-68292

Vulnerability from fkie_nvd - Published: 2026-08-10 13:20 - Updated: 2026-08-17 05:18

Severity

Summary

In the Linux kernel, the following vulnerability has been resolved: ice: prevent tstamp ring allocation for non-PF VSI types The pf->txtime_txqs bitmap tracks which Tx queues have ETF (Earliest TxTime First) offload enabled. This bitmap is indexed by queue number and is set by ice_offload_txtime(), which only operates on PF VSI queues. However, ice_is_txtime_ena() does not check the VSI type before consulting the bitmap. When ETF offload is enabled on PF Tx queue 0, bit 0 is set in pf->txtime_txqs. During a subsequent PCI reset rebuild, the CTRL VSI's Tx queue 0 is reconfigured and ice_is_txtime_ena() is called for that ring. Since it only checks pf->txtime_txqs by queue index without distinguishing VSI type, it finds bit 0 set and returns true, matching the PF VSI's ETF queue, not the CTRL VSI's. This causes ice_vsi_cfg_txq() to spuriously allocate a tstamp_ring for the CTRL VSI ring. Since CTRL VSI rings have no associated netdev, ice_clean_tx_ring() takes an early return at the !netdev check before reaching ice_free_tx_tstamp_ring(), leaking the allocation. Each PCI reset leaks one 64-byte tstamp_ring. Fix this by restricting ice_is_txtime_ena() to return true only for PF VSI rings, since txtime_txqs is only meaningful for PF VSI queues.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/144539bbfd3cea1ab0fb6f5216d6004c1f4f029b
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/684d4d0bda95a3fb21b3e29ff0f668f657707b54
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d0a21604c6abfa4956f3a511a1de174cec77a812

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/intel/ice/ice.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "684d4d0bda95a3fb21b3e29ff0f668f657707b54",
              "status": "affected",
              "version": "ccde82e909467abdf098a8ee6f63e1ecf9a47ce5",
              "versionType": "git"
            },
            {
              "lessThan": "d0a21604c6abfa4956f3a511a1de174cec77a812",
              "status": "affected",
              "version": "ccde82e909467abdf098a8ee6f63e1ecf9a47ce5",
              "versionType": "git"
            },
            {
              "lessThan": "144539bbfd3cea1ab0fb6f5216d6004c1f4f029b",
              "status": "affected",
              "version": "ccde82e909467abdf098a8ee6f63e1ecf9a47ce5",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/intel/ice/ice.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.18"
            },
            {
              "lessThan": "6.18",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.42",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nice: prevent tstamp ring allocation for non-PF VSI types\n\nThe pf-\u003etxtime_txqs bitmap tracks which Tx queues have ETF (Earliest\nTxTime First) offload enabled. This bitmap is indexed by queue number\nand is set by ice_offload_txtime(), which only operates on PF VSI\nqueues.\n\nHowever, ice_is_txtime_ena() does not check the VSI type before\nconsulting the bitmap. When ETF offload is enabled on PF Tx queue 0,\nbit 0 is set in pf-\u003etxtime_txqs. During a subsequent PCI reset\nrebuild, the CTRL VSI\u0027s Tx queue 0 is reconfigured and\nice_is_txtime_ena() is called for that ring. Since it only checks\npf-\u003etxtime_txqs by queue index without distinguishing VSI type, it\nfinds bit 0 set and returns true, matching the PF VSI\u0027s ETF queue,\nnot the CTRL VSI\u0027s. This causes ice_vsi_cfg_txq() to spuriously\nallocate a tstamp_ring for the CTRL VSI ring.\n\nSince CTRL VSI rings have no associated netdev, ice_clean_tx_ring()\ntakes an early return at the !netdev check before reaching\nice_free_tx_tstamp_ring(), leaking the allocation. Each PCI reset\nleaks one 64-byte tstamp_ring.\n\nFix this by restricting ice_is_txtime_ena() to return true only for\nPF VSI rings, since txtime_txqs is only meaningful for PF VSI queues."
    }
  ],
  "id": "CVE-2026-68292",
  "lastModified": "2026-08-17T05:18:31.873",
  "metrics": {},
  "published": "2026-08-10T13:20:18.583",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/144539bbfd3cea1ab0fb6f5216d6004c1f4f029b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/684d4d0bda95a3fb21b3e29ff0f668f657707b54"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d0a21604c6abfa4956f3a511a1de174cec77a812"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}

CVE-2026-68292 (GCVE-0-2026-68292)

Vulnerability from cvelistv5 – Published: 2026-08-10 12:02 – Updated: 2026-08-17 05:02

Title

ice: prevent tstamp ring allocation for non-PF VSI types

Summary

Severity

No CVSS data available.

Assigner

Linux mitre root

References

3 references

URL	Tags
https://git.kernel.org/stable/c/684d4d0bda95a3fb2…
https://git.kernel.org/stable/c/d0a21604c6abfa495…
https://git.kernel.org/stable/c/144539bbfd3cea1ab…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: ccde82e909467abdf098a8ee6f63e1ecf9a47ce5 , < 684d4d0bda95a3fb21b3e29ff0f668f657707b54 (git) Affected: ccde82e909467abdf098a8ee6f63e1ecf9a47ce5 , < d0a21604c6abfa4956f3a511a1de174cec77a812 (git) Affected: ccde82e909467abdf098a8ee6f63e1ecf9a47ce5 , < 144539bbfd3cea1ab0fb6f5216d6004c1f4f029b (git)
Linux	Linux	Affected: 6.18 Unaffected: 0 , < 6.18 (semver) Unaffected: 6.18.42 , ≤ 6.18.* (semver) Unaffected: 7.1.6 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/intel/ice/ice.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "684d4d0bda95a3fb21b3e29ff0f668f657707b54",
              "status": "affected",
              "version": "ccde82e909467abdf098a8ee6f63e1ecf9a47ce5",
              "versionType": "git"
            },
            {
              "lessThan": "d0a21604c6abfa4956f3a511a1de174cec77a812",
              "status": "affected",
              "version": "ccde82e909467abdf098a8ee6f63e1ecf9a47ce5",
              "versionType": "git"
            },
            {
              "lessThan": "144539bbfd3cea1ab0fb6f5216d6004c1f4f029b",
              "status": "affected",
              "version": "ccde82e909467abdf098a8ee6f63e1ecf9a47ce5",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/intel/ice/ice.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.18"
            },
            {
              "lessThan": "6.18",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.42",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.6",
              "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": "6.18.42",
                  "versionStartIncluding": "6.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.6",
                  "versionStartIncluding": "6.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "6.18",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nice: prevent tstamp ring allocation for non-PF VSI types\n\nThe pf-\u003etxtime_txqs bitmap tracks which Tx queues have ETF (Earliest\nTxTime First) offload enabled. This bitmap is indexed by queue number\nand is set by ice_offload_txtime(), which only operates on PF VSI\nqueues.\n\nHowever, ice_is_txtime_ena() does not check the VSI type before\nconsulting the bitmap. When ETF offload is enabled on PF Tx queue 0,\nbit 0 is set in pf-\u003etxtime_txqs. During a subsequent PCI reset\nrebuild, the CTRL VSI\u0027s Tx queue 0 is reconfigured and\nice_is_txtime_ena() is called for that ring. Since it only checks\npf-\u003etxtime_txqs by queue index without distinguishing VSI type, it\nfinds bit 0 set and returns true, matching the PF VSI\u0027s ETF queue,\nnot the CTRL VSI\u0027s. This causes ice_vsi_cfg_txq() to spuriously\nallocate a tstamp_ring for the CTRL VSI ring.\n\nSince CTRL VSI rings have no associated netdev, ice_clean_tx_ring()\ntakes an early return at the !netdev check before reaching\nice_free_tx_tstamp_ring(), leaking the allocation. Each PCI reset\nleaks one 64-byte tstamp_ring.\n\nFix this by restricting ice_is_txtime_ena() to return true only for\nPF VSI rings, since txtime_txqs is only meaningful for PF VSI queues."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:02:28.011Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/684d4d0bda95a3fb21b3e29ff0f668f657707b54"
        },
        {
          "url": "https://git.kernel.org/stable/c/d0a21604c6abfa4956f3a511a1de174cec77a812"
        },
        {
          "url": "https://git.kernel.org/stable/c/144539bbfd3cea1ab0fb6f5216d6004c1f4f029b"
        }
      ],
      "title": "ice: prevent tstamp ring allocation for non-PF VSI types",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-68292",
    "datePublished": "2026-08-10T12:02:25.414Z",
    "dateReserved": "2026-07-30T09:28:09.380Z",
    "dateUpdated": "2026-08-17T05:02:28.011Z",
    "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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