CVE-2026-53008 (GCVE-0-2026-53008)

Vulnerability from cvelistv5 – Published: 2026-06-24 16:29 – Updated: 2026-06-24 16:29
VLAI
Title
ice: fix race condition in TX timestamp ring cleanup
Summary
In the Linux kernel, the following vulnerability has been resolved: ice: fix race condition in TX timestamp ring cleanup Fix a race condition between ice_free_tx_tstamp_ring() and ice_tx_map() that can cause a NULL pointer dereference. ice_free_tx_tstamp_ring currently clears the ICE_TX_FLAGS_TXTIME flag after NULLing the tstamp_ring. This could allow a concurrent ice_tx_map call on another CPU to dereference the tstamp_ring, which could lead to a NULL pointer dereference. CPU A:ice_free_tx_tstamp_ring() | CPU B:ice_tx_map() --------------------------------|--------------------------------- tx_ring->tstamp_ring = NULL | | ice_is_txtime_cfg() -> true | tstamp_ring = tx_ring->tstamp_ring | tstamp_ring->count // NULL deref! flags &= ~ICE_TX_FLAGS_TXTIME | Fix by: 1. Reordering ice_free_tx_tstamp_ring() to clear the flag before NULLing the pointer, with smp_wmb() to ensure proper ordering. 2. Adding smp_rmb() in ice_tx_map() after the flag check to order the flag read before the pointer read, using READ_ONCE() for the pointer, and adding a NULL check as a safety net. 3. Converting tx_ring->flags from u8 to DECLARE_BITMAP() and using atomic bitops (set_bit(), clear_bit(), test_bit()) for all flag operations throughout the driver: - ICE_TX_RING_FLAGS_XDP - ICE_TX_RING_FLAGS_VLAN_L2TAG1 - ICE_TX_RING_FLAGS_VLAN_L2TAG2 - ICE_TX_RING_FLAGS_TXTIME
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: ccde82e909467abdf098a8ee6f63e1ecf9a47ce5 , < 097409d20465723283632515df73038a4a853eda (git)
Affected: ccde82e909467abdf098a8ee6f63e1ecf9a47ce5 , < 7c72ec18c2a4111204c2e915f8e4f6d849ce9398 (git)
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Linux Linux Affected: 6.18
Unaffected: 0 , < 6.18 (semver)
Unaffected: 7.0.10 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/intel/ice/ice.h",
            "drivers/net/ethernet/intel/ice/ice_dcb_lib.c",
            "drivers/net/ethernet/intel/ice/ice_lib.c",
            "drivers/net/ethernet/intel/ice/ice_txrx.c",
            "drivers/net/ethernet/intel/ice/ice_txrx.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "097409d20465723283632515df73038a4a853eda",
              "status": "affected",
              "version": "ccde82e909467abdf098a8ee6f63e1ecf9a47ce5",
              "versionType": "git"
            },
            {
              "lessThan": "7c72ec18c2a4111204c2e915f8e4f6d849ce9398",
              "status": "affected",
              "version": "ccde82e909467abdf098a8ee6f63e1ecf9a47ce5",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/intel/ice/ice.h",
            "drivers/net/ethernet/intel/ice/ice_dcb_lib.c",
            "drivers/net/ethernet/intel/ice/ice_lib.c",
            "drivers/net/ethernet/intel/ice/ice_txrx.c",
            "drivers/net/ethernet/intel/ice/ice_txrx.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": "7.0.*",
              "status": "unaffected",
              "version": "7.0.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0.10",
                  "versionStartIncluding": "6.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1",
                  "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: fix race condition in TX timestamp ring cleanup\n\nFix a race condition between ice_free_tx_tstamp_ring() and ice_tx_map()\nthat can cause a NULL pointer dereference.\n\nice_free_tx_tstamp_ring currently clears the ICE_TX_FLAGS_TXTIME flag\nafter NULLing the tstamp_ring. This could allow a concurrent ice_tx_map\ncall on another CPU to dereference the tstamp_ring, which could lead to\na NULL pointer dereference.\n\n  CPU A:ice_free_tx_tstamp_ring() | CPU B:ice_tx_map()\n  --------------------------------|---------------------------------\n  tx_ring-\u003etstamp_ring = NULL     |\n                                  | ice_is_txtime_cfg() -\u003e true\n                                  | tstamp_ring = tx_ring-\u003etstamp_ring\n                                  | tstamp_ring-\u003ecount  // NULL deref!\n  flags \u0026= ~ICE_TX_FLAGS_TXTIME   |\n\nFix by:\n1. Reordering ice_free_tx_tstamp_ring() to clear the flag before\n   NULLing the pointer, with smp_wmb() to ensure proper ordering.\n2. Adding smp_rmb() in ice_tx_map() after the flag check to order the\n   flag read before the pointer read, using READ_ONCE() for the\n   pointer, and adding a NULL check as a safety net.\n3. Converting tx_ring-\u003eflags from u8 to DECLARE_BITMAP() and using\n   atomic bitops (set_bit(), clear_bit(), test_bit()) for all flag\n   operations throughout the driver:\n   - ICE_TX_RING_FLAGS_XDP\n   - ICE_TX_RING_FLAGS_VLAN_L2TAG1\n   - ICE_TX_RING_FLAGS_VLAN_L2TAG2\n   - ICE_TX_RING_FLAGS_TXTIME"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-24T16:29:19.459Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/097409d20465723283632515df73038a4a853eda"
        },
        {
          "url": "https://git.kernel.org/stable/c/7c72ec18c2a4111204c2e915f8e4f6d849ce9398"
        }
      ],
      "title": "ice: fix race condition in TX timestamp ring cleanup",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-53008",
    "datePublished": "2026-06-24T16:29:19.459Z",
    "dateReserved": "2026-06-09T07:44:35.378Z",
    "dateUpdated": "2026-06-24T16:29:19.459Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-53008",
      "date": "2026-07-02",
      "epss": "0.00155",
      "percentile": "0.05073"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-53008\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-06-24T17:17:12.023\",\"lastModified\":\"2026-06-24T17:17:12.023\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nice: fix race condition in TX timestamp ring cleanup\\n\\nFix a race condition between ice_free_tx_tstamp_ring() and ice_tx_map()\\nthat can cause a NULL pointer dereference.\\n\\nice_free_tx_tstamp_ring currently clears the ICE_TX_FLAGS_TXTIME flag\\nafter NULLing the tstamp_ring. This could allow a concurrent ice_tx_map\\ncall on another CPU to dereference the tstamp_ring, which could lead to\\na NULL pointer dereference.\\n\\n  CPU A:ice_free_tx_tstamp_ring() | CPU B:ice_tx_map()\\n  --------------------------------|---------------------------------\\n  tx_ring-\u003etstamp_ring = NULL     |\\n                                  | ice_is_txtime_cfg() -\u003e true\\n                                  | tstamp_ring = tx_ring-\u003etstamp_ring\\n                                  | tstamp_ring-\u003ecount  // NULL deref!\\n  flags \u0026= ~ICE_TX_FLAGS_TXTIME   |\\n\\nFix by:\\n1. Reordering ice_free_tx_tstamp_ring() to clear the flag before\\n   NULLing the pointer, with smp_wmb() to ensure proper ordering.\\n2. Adding smp_rmb() in ice_tx_map() after the flag check to order the\\n   flag read before the pointer read, using READ_ONCE() for the\\n   pointer, and adding a NULL check as a safety net.\\n3. Converting tx_ring-\u003eflags from u8 to DECLARE_BITMAP() and using\\n   atomic bitops (set_bit(), clear_bit(), test_bit()) for all flag\\n   operations throughout the driver:\\n   - ICE_TX_RING_FLAGS_XDP\\n   - ICE_TX_RING_FLAGS_VLAN_L2TAG1\\n   - ICE_TX_RING_FLAGS_VLAN_L2TAG2\\n   - ICE_TX_RING_FLAGS_TXTIME\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/net/ethernet/intel/ice/ice.h\",\"drivers/net/ethernet/intel/ice/ice_dcb_lib.c\",\"drivers/net/ethernet/intel/ice/ice_lib.c\",\"drivers/net/ethernet/intel/ice/ice_txrx.c\",\"drivers/net/ethernet/intel/ice/ice_txrx.h\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"ccde82e909467abdf098a8ee6f63e1ecf9a47ce5\",\"lessThan\":\"097409d20465723283632515df73038a4a853eda\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"ccde82e909467abdf098a8ee6f63e1ecf9a47ce5\",\"lessThan\":\"7c72ec18c2a4111204c2e915f8e4f6d849ce9398\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/net/ethernet/intel/ice/ice.h\",\"drivers/net/ethernet/intel/ice/ice_dcb_lib.c\",\"drivers/net/ethernet/intel/ice/ice_lib.c\",\"drivers/net/ethernet/intel/ice/ice_txrx.c\",\"drivers/net/ethernet/intel/ice/ice_txrx.h\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"6.18\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"6.18\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.0.10\",\"lessThanOrEqual\":\"7.0.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.1\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/097409d20465723283632515df73038a4a853eda\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/7c72ec18c2a4111204c2e915f8e4f6d849ce9398\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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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.

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