CVE-2026-68291 (GCVE-0-2026-68291)

Vulnerability from cvelistv5 – Published: 2026-08-10 12:02 – Updated: 2026-08-17 05:02
VLAI
Title
idpf: fix max_vport related crash on allocation error during init
Summary
In the Linux kernel, the following vulnerability has been resolved: idpf: fix max_vport related crash on allocation error during init Set adapter->max_vports only after successful allocation of vports, netdevs and vport_config buffers. This fixes possible crashes on reset or rmmod, following failed allocation on init [ 305.981402] idpf 0000:83:00.0: enabling device (0100 -> 0102) [ 305.994464] idpf 0000:83:00.0: Device HW Reset initiated [ 320.416872] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 320.416918] #PF: supervisor read access in kernel mode [ 320.416942] #PF: error_code(0x0000) - not-present page [ 320.416963] PGD 2099657067 P4D 0 [ 320.416983] Oops: Oops: 0000 [#1] SMP NOPTI ... [ 320.417093] RIP: 0010:idpf_remove+0x118/0x200 [idpf] [ 320.417130] Code: 8b bb 98 09 00 00 e8 17 0f 5b e5 48 8b bb e8 08 00 00 e8 0b 0f 5b e5 66 83 bb 28 06 00 00 00 48 8b bb 20 06 00 00 74 49 31 ed <48> 8b 04 ef 48 85 c0 74 2f 48 8b 78 20 e8 66 58 91 e5 48 8b 83 20 [ 320.417183] RSP: 0018:ff7322212903fdb8 EFLAGS: 00010246 [ 320.417205] RAX: 0000000000000000 RBX: ff4463de40300000 RCX: ff7322212903fd4c [ 320.417228] RDX: 0000000000000001 RSI: ffffffffa7f7d100 RDI: 0000000000000000 [ 320.417250] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 [ 320.417272] R10: 0000000000000001 R11: ff4463de3a638f58 R12: ff4463be89ac7000 [ 320.417294] R13: ff4463be89ac7198 R14: ff4463be94fc7198 R15: ffffffffc0f10f20 [ 320.417317] FS: 00007f963c0e6740(0000) GS:ff4463fdd65d8000(0000) knlGS:0000000000000000 [ 320.417342] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 320.417362] CR2: 0000000000000000 CR3: 00000020ba674002 CR4: 0000000000773ef0 [ 320.417385] PKRU: 55555554 [ 320.417398] Call Trace: [ 320.417412] <TASK> [ 320.417429] pci_device_remove+0x42/0xb0 [ 320.417459] device_release_driver_internal+0x1a9/0x210 [ 320.417492] driver_detach+0x4b/0x90 [ 320.417516] bus_remove_driver+0x70/0x100 [ 320.417539] pci_unregister_driver+0x2e/0xb0 [ 320.417564] __do_sys_delete_module.constprop.0+0x190/0x2f0 [ 320.417592] ? kmem_cache_free+0x31e/0x550 [ 320.417619] ? lockdep_hardirqs_on_prepare+0xde/0x190 [ 320.417644] ? do_syscall_64+0x38/0x6b0 [ 320.417665] do_syscall_64+0xc8/0x6b0 [ 320.417683] ? clear_bhb_loop+0x30/0x80 [ 320.417706] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 320.417727] RIP: 0033:0x7f963bb30beb
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 0fe45467a1041ea3657a7fa3a791c84c104fbd34 , < 9fbe22b7aff0a65984d78ee6b93e2f8179abd1f5 (git)
Affected: 0fe45467a1041ea3657a7fa3a791c84c104fbd34 , < 237f1f7653b8729169af11fae79f01b90d00b87e (git)
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Linux Linux Affected: 6.7
Unaffected: 0 , < 6.7 (semver)
Unaffected: 7.1.6 , ≤ 7.1.* (semver)
Unaffected: 7.2 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/intel/idpf/idpf_virtchnl.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "9fbe22b7aff0a65984d78ee6b93e2f8179abd1f5",
              "status": "affected",
              "version": "0fe45467a1041ea3657a7fa3a791c84c104fbd34",
              "versionType": "git"
            },
            {
              "lessThan": "237f1f7653b8729169af11fae79f01b90d00b87e",
              "status": "affected",
              "version": "0fe45467a1041ea3657a7fa3a791c84c104fbd34",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/intel/idpf/idpf_virtchnl.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.7"
            },
            {
              "lessThan": "6.7",
              "status": "unaffected",
              "version": "0",
              "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": "7.1.6",
                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nidpf: fix max_vport related crash on allocation error during init\n\nSet adapter-\u003emax_vports only after successful allocation of vports, netdevs\nand  vport_config buffers. This fixes possible crashes on reset or rmmod,\nfollowing failed allocation on init\n\n[  305.981402] idpf 0000:83:00.0: enabling device (0100 -\u003e 0102)\n[  305.994464] idpf 0000:83:00.0: Device HW Reset initiated\n[  320.416872] BUG: kernel NULL pointer dereference, address: 0000000000000000\n[  320.416918] #PF: supervisor read access in kernel mode\n[  320.416942] #PF: error_code(0x0000) - not-present page\n[  320.416963] PGD 2099657067 P4D 0\n[  320.416983] Oops: Oops: 0000 [#1] SMP NOPTI\n...\n[  320.417093] RIP: 0010:idpf_remove+0x118/0x200 [idpf]\n[  320.417130] Code: 8b bb 98 09 00 00 e8 17 0f 5b e5 48 8b bb e8 08 00 00 e8 0b 0f 5b e5 66 83 bb 28 06 00 00 00 48 8b bb 20 06 00 00 74 49 31 ed \u003c48\u003e 8b 04 ef 48 85 c0 74 2f 48 8b 78 20 e8 66 58 91 e5 48 8b 83 20\n[  320.417183] RSP: 0018:ff7322212903fdb8 EFLAGS: 00010246\n[  320.417205] RAX: 0000000000000000 RBX: ff4463de40300000 RCX: ff7322212903fd4c\n[  320.417228] RDX: 0000000000000001 RSI: ffffffffa7f7d100 RDI: 0000000000000000\n[  320.417250] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000\n[  320.417272] R10: 0000000000000001 R11: ff4463de3a638f58 R12: ff4463be89ac7000\n[  320.417294] R13: ff4463be89ac7198 R14: ff4463be94fc7198 R15: ffffffffc0f10f20\n[  320.417317] FS:  00007f963c0e6740(0000) GS:ff4463fdd65d8000(0000) knlGS:0000000000000000\n[  320.417342] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[  320.417362] CR2: 0000000000000000 CR3: 00000020ba674002 CR4: 0000000000773ef0\n[  320.417385] PKRU: 55555554\n[  320.417398] Call Trace:\n[  320.417412]  \u003cTASK\u003e\n[  320.417429]  pci_device_remove+0x42/0xb0\n[  320.417459]  device_release_driver_internal+0x1a9/0x210\n[  320.417492]  driver_detach+0x4b/0x90\n[  320.417516]  bus_remove_driver+0x70/0x100\n[  320.417539]  pci_unregister_driver+0x2e/0xb0\n[  320.417564]  __do_sys_delete_module.constprop.0+0x190/0x2f0\n[  320.417592]  ? kmem_cache_free+0x31e/0x550\n[  320.417619]  ? lockdep_hardirqs_on_prepare+0xde/0x190\n[  320.417644]  ? do_syscall_64+0x38/0x6b0\n[  320.417665]  do_syscall_64+0xc8/0x6b0\n[  320.417683]  ? clear_bhb_loop+0x30/0x80\n[  320.417706]  entry_SYSCALL_64_after_hwframe+0x76/0x7e\n[  320.417727] RIP: 0033:0x7f963bb30beb"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:02:26.907Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/9fbe22b7aff0a65984d78ee6b93e2f8179abd1f5"
        },
        {
          "url": "https://git.kernel.org/stable/c/237f1f7653b8729169af11fae79f01b90d00b87e"
        }
      ],
      "title": "idpf: fix max_vport related crash on allocation error during init",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-68291",
    "datePublished": "2026-08-10T12:02:24.402Z",
    "dateReserved": "2026-07-30T09:28:09.380Z",
    "dateUpdated": "2026-08-17T05:02:26.907Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-68291",
      "date": "2026-09-20",
      "epss": "0.00155",
      "percentile": "0.05082"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "drivers/net/ethernet/intel/idpf/idpf_virtchnl.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "9fbe22b7aff0a65984d78ee6b93e2f8179abd1f5",
                    "status": "affected",
                    "version": "0fe45467a1041ea3657a7fa3a791c84c104fbd34",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "237f1f7653b8729169af11fae79f01b90d00b87e",
                    "status": "affected",
                    "version": "0fe45467a1041ea3657a7fa3a791c84c104fbd34",
                    "versionType": "git"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "drivers/net/ethernet/intel/idpf/idpf_virtchnl.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "6.7"
                  },
                  {
                    "lessThan": "6.7",
                    "status": "unaffected",
                    "version": "0",
                    "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\nidpf: fix max_vport related crash on allocation error during init\n\nSet adapter-\u003emax_vports only after successful allocation of vports, netdevs\nand  vport_config buffers. This fixes possible crashes on reset or rmmod,\nfollowing failed allocation on init\n\n[  305.981402] idpf 0000:83:00.0: enabling device (0100 -\u003e 0102)\n[  305.994464] idpf 0000:83:00.0: Device HW Reset initiated\n[  320.416872] BUG: kernel NULL pointer dereference, address: 0000000000000000\n[  320.416918] #PF: supervisor read access in kernel mode\n[  320.416942] #PF: error_code(0x0000) - not-present page\n[  320.416963] PGD 2099657067 P4D 0\n[  320.416983] Oops: Oops: 0000 [#1] SMP NOPTI\n...\n[  320.417093] RIP: 0010:idpf_remove+0x118/0x200 [idpf]\n[  320.417130] Code: 8b bb 98 09 00 00 e8 17 0f 5b e5 48 8b bb e8 08 00 00 e8 0b 0f 5b e5 66 83 bb 28 06 00 00 00 48 8b bb 20 06 00 00 74 49 31 ed \u003c48\u003e 8b 04 ef 48 85 c0 74 2f 48 8b 78 20 e8 66 58 91 e5 48 8b 83 20\n[  320.417183] RSP: 0018:ff7322212903fdb8 EFLAGS: 00010246\n[  320.417205] RAX: 0000000000000000 RBX: ff4463de40300000 RCX: ff7322212903fd4c\n[  320.417228] RDX: 0000000000000001 RSI: ffffffffa7f7d100 RDI: 0000000000000000\n[  320.417250] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000\n[  320.417272] R10: 0000000000000001 R11: ff4463de3a638f58 R12: ff4463be89ac7000\n[  320.417294] R13: ff4463be89ac7198 R14: ff4463be94fc7198 R15: ffffffffc0f10f20\n[  320.417317] FS:  00007f963c0e6740(0000) GS:ff4463fdd65d8000(0000) knlGS:0000000000000000\n[  320.417342] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[  320.417362] CR2: 0000000000000000 CR3: 00000020ba674002 CR4: 0000000000773ef0\n[  320.417385] PKRU: 55555554\n[  320.417398] Call Trace:\n[  320.417412]  \u003cTASK\u003e\n[  320.417429]  pci_device_remove+0x42/0xb0\n[  320.417459]  device_release_driver_internal+0x1a9/0x210\n[  320.417492]  driver_detach+0x4b/0x90\n[  320.417516]  bus_remove_driver+0x70/0x100\n[  320.417539]  pci_unregister_driver+0x2e/0xb0\n[  320.417564]  __do_sys_delete_module.constprop.0+0x190/0x2f0\n[  320.417592]  ? kmem_cache_free+0x31e/0x550\n[  320.417619]  ? lockdep_hardirqs_on_prepare+0xde/0x190\n[  320.417644]  ? do_syscall_64+0x38/0x6b0\n[  320.417665]  do_syscall_64+0xc8/0x6b0\n[  320.417683]  ? clear_bhb_loop+0x30/0x80\n[  320.417706]  entry_SYSCALL_64_after_hwframe+0x76/0x7e\n[  320.417727] RIP: 0033:0x7f963bb30beb"
          }
        ],
        "id": "CVE-2026-68291",
        "lastModified": "2026-08-17T05:18:31.777",
        "metrics": {},
        "published": "2026-08-10T13:20:18.457",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/237f1f7653b8729169af11fae79f01b90d00b87e"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/9fbe22b7aff0a65984d78ee6b93e2f8179abd1f5"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Received"
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-31T11:21:14+00:00",
      "cve": "CVE-2026-68291",
      "id": "CVE-2026-68291",
      "initial_release_date": "2026-08-10T12:02:24.402000+00:00",
      "product_status:known_affected": "233",
      "product_status:known_not_affected": "44",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: Linux kernel: idpf driver null pointer dereference leads to Denial of Service",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-68291.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-15T01:36:58Z",
      "cve": "CVE-2026-68291",
      "id": "CVE-2026-68291",
      "initial_release_date": "2026-08-22T00:54:47Z",
      "product_status:known_affected": "227",
      "product_status:known_not_affected": "147",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-68291",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-68291.json",
      "version": "4"
    }
  }
}



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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.

Sightings

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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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.