{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "ccde82e909467abdf098a8ee6f63e1ecf9a47ce5"
            },
            {
              "fixed": "684d4d0bda95a3fb21b3e29ff0f668f657707b54"
            },
            {
              "fixed": "d0a21604c6abfa4956f3a511a1de174cec77a812"
            },
            {
              "fixed": "144539bbfd3cea1ab0fb6f5216d6004c1f4f029b"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.18.0"
            },
            {
              "fixed": "6.18.42"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68292.json"
  },
  "details": "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's 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's ETF queue,\nnot the CTRL VSI's. 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",
  "modified": "2026-08-12T03:51:22.998292469Z",
  "published": "2026-08-10T12:02:25.414Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/144539bbfd3cea1ab0fb6f5216d6004c1f4f029b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/684d4d0bda95a3fb21b3e29ff0f668f657707b54"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d0a21604c6abfa4956f3a511a1de174cec77a812"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68292.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68292"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "ice: prevent tstamp ring allocation for non-PF VSI types"
}