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GHSA-GQXP-FJ3H-CR3V

Vulnerability from github – Published: 2026-06-24 18:32 – Updated: 2026-06-24 18:32

Details

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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-53008"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-24T17:17:12Z",
    "severity": null
  },
  "details": "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",
  "id": "GHSA-gqxp-fj3h-cr3v",
  "modified": "2026-06-24T18:32:43Z",
  "published": "2026-06-24T18:32:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53008"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/097409d20465723283632515df73038a4a853eda"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7c72ec18c2a4111204c2e915f8e4f6d849ce9398"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

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

Vulnerability from cvelistv5 – Published: 2026-06-24 16:29 – Updated: 2026-06-24 16:29

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

Linux

References

2 references

URL	Tags
https://git.kernel.org/stable/c/097409d2046572328…
https://git.kernel.org/stable/c/7c72ec18c2a411120…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: ccde82e909467abdf098a8ee6f63e1ecf9a47ce5 , < 097409d20465723283632515df73038a4a853eda (git) Affected: ccde82e909467abdf098a8ee6f63e1ecf9a47ce5 , < 7c72ec18c2a4111204c2e915f8e4f6d849ce9398 (git)
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"
}

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.

Action not permitted

GHSA-GQXP-FJ3H-CR3V

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

Tags

Sightings

Nomenclature