CVE-2026-23210 (GCVE-0-2026-23210)

Vulnerability from cvelistv5 – Published: 2026-02-14 16:27 – Updated: 2026-10-19 18:35
VLAI
Title
ice: Fix PTP NULL pointer dereference during VSI rebuild
Summary
In the Linux kernel, the following vulnerability has been resolved: ice: Fix PTP NULL pointer dereference during VSI rebuild Fix race condition where PTP periodic work runs while VSI is being rebuilt, accessing NULL vsi->rx_rings. The sequence was: 1. ice_ptp_prepare_for_reset() cancels PTP work 2. ice_ptp_rebuild() immediately queues PTP work 3. VSI rebuild happens AFTER ice_ptp_rebuild() 4. PTP work runs and accesses NULL vsi->rx_rings Fix: Keep PTP work cancelled during rebuild, only queue it after VSI rebuild completes in ice_rebuild(). Added ice_ptp_queue_work() helper function to encapsulate the logic for queuing PTP work, ensuring it's only queued when PTP is supported and the state is ICE_PTP_READY. Error log: [ 121.392544] ice 0000:60:00.1: PTP reset successful [ 121.392692] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 121.392712] #PF: supervisor read access in kernel mode [ 121.392720] #PF: error_code(0x0000) - not-present page [ 121.392727] PGD 0 [ 121.392734] Oops: Oops: 0000 [#1] SMP NOPTI [ 121.392746] CPU: 8 UID: 0 PID: 1005 Comm: ice-ptp-0000:60 Tainted: G S 6.19.0-rc6+ #4 PREEMPT(voluntary) [ 121.392761] Tainted: [S]=CPU_OUT_OF_SPEC [ 121.392773] RIP: 0010:ice_ptp_update_cached_phctime+0xbf/0x150 [ice] [ 121.393042] Call Trace: [ 121.393047] <TASK> [ 121.393055] ice_ptp_periodic_work+0x69/0x180 [ice] [ 121.393202] kthread_worker_fn+0xa2/0x260 [ 121.393216] ? __pfx_ice_ptp_periodic_work+0x10/0x10 [ice] [ 121.393359] ? __pfx_kthread_worker_fn+0x10/0x10 [ 121.393371] kthread+0x10d/0x230 [ 121.393382] ? __pfx_kthread+0x10/0x10 [ 121.393393] ret_from_fork+0x273/0x2b0 [ 121.393407] ? __pfx_kthread+0x10/0x10 [ 121.393417] ret_from_fork_asm+0x1a/0x30 [ 121.393432] </TASK>
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-10 20:41 UTC
CWE
  • CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7033 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 803bef817807d2d36c930dada20c96fffae0dd19 , < ba0c7fff6616025a7d3a9e887e7ce16b06dc34b9 (git)
Affected: 803bef817807d2d36c930dada20c96fffae0dd19 , < 7565d4df66b6619b50dc36618d8b8f1787d77e19 (git)
Affected: 803bef817807d2d36c930dada20c96fffae0dd19 , < fc6f36eaaedcf4b81af6fe1a568f018ffd530660 (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.9
Unaffected: 0 , < 6.9 (semver)
Unaffected: 6.12.80 , ≤ 6.12.* (semver)
Unaffected: 6.18.10 , ≤ 6.18.* (semver)
Unaffected: 6.19 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nice: Fix PTP NULL pointer dereference during VSI rebuild\n\nFix race condition where PTP periodic work runs while VSI is being\nrebuilt, accessing NULL vsi-\u003erx_rings.\n\nThe sequence was:\n1. ice_ptp_prepare_for_reset() cancels PTP work\n2. ice_ptp_rebuild() immediately queues PTP work\n3. VSI rebuild happens AFTER ice_ptp_rebuild()\n4. PTP work runs and accesses NULL vsi-\u003erx_rings\n\nFix: Keep PTP work cancelled during rebuild, only queue it after\nVSI rebuild completes in ice_rebuild().\n\nAdded ice_ptp_queue_work() helper function to encapsulate the logic\nfor queuing PTP work, ensuring it\u0027s only queued when PTP is supported\nand the state is ICE_PTP_READY.\n\nError log:\n[  121.392544] ice 0000:60:00.1: PTP reset successful\n[  121.392692] BUG: kernel NULL pointer dereference, address: 0000000000000000\n[  121.392712] #PF: supervisor read access in kernel mode\n[  121.392720] #PF: error_code(0x0000) - not-present page\n[  121.392727] PGD 0\n[  121.392734] Oops: Oops: 0000 [#1] SMP NOPTI\n[  121.392746] CPU: 8 UID: 0 PID: 1005 Comm: ice-ptp-0000:60 Tainted: G S                  6.19.0-rc6+ #4 PREEMPT(voluntary)\n[  121.392761] Tainted: [S]=CPU_OUT_OF_SPEC\n[  121.392773] RIP: 0010:ice_ptp_update_cached_phctime+0xbf/0x150 [ice]\n[  121.393042] Call Trace:\n[  121.393047]  \u003cTASK\u003e\n[  121.393055]  ice_ptp_periodic_work+0x69/0x180 [ice]\n[  121.393202]  kthread_worker_fn+0xa2/0x260\n[  121.393216]  ? __pfx_ice_ptp_periodic_work+0x10/0x10 [ice]\n[  121.393359]  ? __pfx_kthread_worker_fn+0x10/0x10\n[  121.393371]  kthread+0x10d/0x230\n[  121.393382]  ? __pfx_kthread+0x10/0x10\n[  121.393393]  ret_from_fork+0x273/0x2b0\n[  121.393407]  ? __pfx_kthread+0x10/0x10\n[  121.393417]  ret_from_fork_asm+0x1a/0x30\n[  121.393432]  \u003c/TASK\u003e"
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          {
            "lang": "es",
            "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nice: Soluciona la desreferencia de puntero NULL de PTP durante la reconstrucci\u00f3n de VSI\n\nSoluciona la condici\u00f3n de carrera donde el trabajo peri\u00f3dico de PTP se ejecuta mientras VSI est\u00e1 siendo reconstruido, accediendo a vsi-\u0026gt;rx_rings NULL.\n\nLa secuencia fue:\n1. ice_ptp_prepare_for_reset() cancela el trabajo de PTP\n2. ice_ptp_rebuild() encola inmediatamente el trabajo de PTP\n3. La reconstrucci\u00f3n de VSI ocurre DESPU\u00c9S de ice_ptp_rebuild()\n4. El trabajo de PTP se ejecuta y accede a vsi-\u0026gt;rx_rings NULL\n\nCorrecci\u00f3n: Mantener el trabajo de PTP cancelado durante la reconstrucci\u00f3n, solo encolarlo despu\u00e9s de que la reconstrucci\u00f3n de VSI se complete en ice_rebuild().\n\nSe a\u00f1adi\u00f3 la funci\u00f3n auxiliar ice_ptp_queue_work() para encapsular la l\u00f3gica de encolamiento del trabajo de PTP, asegurando que solo se encole cuando PTP es compatible y el estado es ICE_PTP_READY.\n\nRegistro de error:\n[  121.392544] ice 0000:60:00.1: Reinicio de PTP exitoso\n[  121.392692] BUG: desreferencia de puntero NULL del kernel, direcci\u00f3n: 0000000000000000\n[  121.392712] #PF: acceso de lectura de supervisor en modo kernel\n[  121.392720] #PF: error_code(0x0000) - p\u00e1gina no presente\n[  121.392727] PGD 0\n[  121.392734] Oops: Oops: 0000 [#1] SMP NOPTI\n[  121.392746] CPU: 8 UID: 0 PID: 1005 Comm: ice-ptp-0000:60 Tainted: G S                  6.19.0-rc6+ #4 PREEMPT(voluntary)\n[  121.392761] Tainted: [S]=CPU_OUT_OF_SPEC\n[  121.392773] RIP: 0010:ice_ptp_update_cached_phctime+0xbf/0x150 [ice]\n[  121.393042] Traza de Llamada:\n[  121.393047] \n[  121.393055] ice_ptp_periodic_work+0x69/0x180 [ice]\n[  121.393202] kthread_worker_fn+0xa2/0x260\n[  121.393216] ? __pfx_ice_ptp_periodic_work+0x10/0x10 [ice]\n[  121.393359] ? __pfx_kthread_worker_fn+0x10/0x10\n[  121.393371] kthread+0x10d/0x230\n[  121.393382] ? __pfx_kthread+0x10/0x10\n[  121.393393] ret_from_fork+0x273/0x2b0\n[  121.393407] ? __pfx_kthread+0x10/0x10\n[  121.393417] ret_from_fork_asm+0x1a/0x30\n[  121.393432] "
          }
        ],
        "id": "CVE-2026-23210",
        "lastModified": "2026-10-19T19:17:42.123",
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                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
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                  },
                  {
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                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-10T20:41:52.270125Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2026-02-14T17:15:58.910",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/7565d4df66b6619b50dc36618d8b8f1787d77e19"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/ba0c7fff6616025a7d3a9e887e7ce16b06dc34b9"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/fc6f36eaaedcf4b81af6fe1a568f018ffd530660"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-476"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          },
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-362"
              }
            ],
            "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-10-30T03:22:21+00:00",
      "cve": "CVE-2026-23210",
      "id": "CVE-2026-23210",
      "initial_release_date": "2026-02-14T00:00:00+00:00",
      "product_status:fixed": "1224",
      "product_status:known_affected": "22",
      "product_status:known_not_affected": "90",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: Linux kernel: Denial of Service in ice driver due to race condition during VSI rebuild",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23210.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-10-15T15:39:36Z",
      "cve": "CVE-2026-23210",
      "id": "CVE-2026-23210",
      "initial_release_date": "2026-02-16T00:24:52Z",
      "product_status:known_affected": "404",
      "product_status:known_not_affected": "312",
      "product_status:recommended": "383",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-23210",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/2026/cve-2026-23210.json",
      "version": "32"
    },
    "vulnrichment": {
      "containers": {
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            "metrics": [
              {
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                  "content": {
                    "id": "CVE-2026-23210",
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                      },
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                      },
                      {
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                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-06-10T20:41:52.270125Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "problemTypes": [
              {
                "descriptions": [
                  {
                    "cweId": "CWE-362",
                    "description": "CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization (\u0027Race Condition\u0027)",
                    "lang": "en",
                    "type": "CWE"
                  }
                ]
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-06-11T17:38:49.050Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
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              "defaultStatus": "unaffected",
              "product": "Linux",
              "programFiles": [
                "drivers/net/ethernet/intel/ice/ice_main.c",
                "drivers/net/ethernet/intel/ice/ice_ptp.c",
                "drivers/net/ethernet/intel/ice/ice_ptp.h"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
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                  "lessThan": "ba0c7fff6616025a7d3a9e887e7ce16b06dc34b9",
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                },
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                  "versionType": "git"
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            },
            {
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              "product": "Linux",
              "programFiles": [
                "drivers/net/ethernet/intel/ice/ice_main.c",
                "drivers/net/ethernet/intel/ice/ice_ptp.c",
                "drivers/net/ethernet/intel/ice/ice_ptp.h"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "6.9"
                },
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                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.12.*",
                  "status": "unaffected",
                  "version": "6.12.80",
                  "versionType": "semver"
                },
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                  "lessThanOrEqual": "6.18.*",
                  "status": "unaffected",
                  "version": "6.18.10",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "6.19",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
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              "nodes": [
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                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                      "versionStartIncluding": "6.9",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.18.10",
                      "versionStartIncluding": "6.9",
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            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nice: Fix PTP NULL pointer dereference during VSI rebuild\n\nFix race condition where PTP periodic work runs while VSI is being\nrebuilt, accessing NULL vsi-\u003erx_rings.\n\nThe sequence was:\n1. ice_ptp_prepare_for_reset() cancels PTP work\n2. ice_ptp_rebuild() immediately queues PTP work\n3. VSI rebuild happens AFTER ice_ptp_rebuild()\n4. PTP work runs and accesses NULL vsi-\u003erx_rings\n\nFix: Keep PTP work cancelled during rebuild, only queue it after\nVSI rebuild completes in ice_rebuild().\n\nAdded ice_ptp_queue_work() helper function to encapsulate the logic\nfor queuing PTP work, ensuring it\u0027s only queued when PTP is supported\nand the state is ICE_PTP_READY.\n\nError log:\n[  121.392544] ice 0000:60:00.1: PTP reset successful\n[  121.392692] BUG: kernel NULL pointer dereference, address: 0000000000000000\n[  121.392712] #PF: supervisor read access in kernel mode\n[  121.392720] #PF: error_code(0x0000) - not-present page\n[  121.392727] PGD 0\n[  121.392734] Oops: Oops: 0000 [#1] SMP NOPTI\n[  121.392746] CPU: 8 UID: 0 PID: 1005 Comm: ice-ptp-0000:60 Tainted: G S                  6.19.0-rc6+ #4 PREEMPT(voluntary)\n[  121.392761] Tainted: [S]=CPU_OUT_OF_SPEC\n[  121.392773] RIP: 0010:ice_ptp_update_cached_phctime+0xbf/0x150 [ice]\n[  121.393042] Call Trace:\n[  121.393047]  \u003cTASK\u003e\n[  121.393055]  ice_ptp_periodic_work+0x69/0x180 [ice]\n[  121.393202]  kthread_worker_fn+0xa2/0x260\n[  121.393216]  ? __pfx_ice_ptp_periodic_work+0x10/0x10 [ice]\n[  121.393359]  ? __pfx_kthread_worker_fn+0x10/0x10\n[  121.393371]  kthread+0x10d/0x230\n[  121.393382]  ? __pfx_kthread+0x10/0x10\n[  121.393393]  ret_from_fork+0x273/0x2b0\n[  121.393407]  ? __pfx_kthread+0x10/0x10\n[  121.393417]  ret_from_fork_asm+0x1a/0x30\n[  121.393432]  \u003c/TASK\u003e"
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-05-11T22:02:27.163Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
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              "url": "https://git.kernel.org/stable/c/ba0c7fff6616025a7d3a9e887e7ce16b06dc34b9"
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            },
            {
              "url": "https://git.kernel.org/stable/c/fc6f36eaaedcf4b81af6fe1a568f018ffd530660"
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          ],
          "title": "ice: Fix PTP NULL pointer dereference during VSI rebuild",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
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      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2026-23210",
        "datePublished": "2026-02-14T16:27:31.892Z",
        "dateReserved": "2026-01-13T15:37:45.986Z",
        "dateUpdated": "2026-10-19T18:35:38.869Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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