Vulnerability-Lookup

GHSA-4P63-546R-FX23

Vulnerability from github – Published: 2026-08-10 15:33 – Updated: 2026-08-10 15:33

Details

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] [ 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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-68291"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-10T13:20:18Z",
    "severity": null
  },
  "details": "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": "GHSA-4p63-546r-fx23",
  "modified": "2026-08-10T15:33:45Z",
  "published": "2026-08-10T15:33:45Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68291"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/237f1f7653b8729169af11fae79f01b90d00b87e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9fbe22b7aff0a65984d78ee6b93e2f8179abd1f5"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

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

Vulnerability from cvelistv5 – Published: 2026-08-10 12:02 – Updated: 2026-08-17 05:02

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

Linux mitre root

References

2 references

URL	Tags
https://git.kernel.org/stable/c/9fbe22b7aff0a6598…
https://git.kernel.org/stable/c/237f1f7653b872916…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 0fe45467a1041ea3657a7fa3a791c84c104fbd34 , < 9fbe22b7aff0a65984d78ee6b93e2f8179abd1f5 (git) Affected: 0fe45467a1041ea3657a7fa3a791c84c104fbd34 , < 237f1f7653b8729169af11fae79f01b90d00b87e (git)
Linux	Linux	Affected: 6.7 Unaffected: 0 , < 6.7 (semver) Unaffected: 7.1.6 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

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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"
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

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GHSA-4P63-546R-FX23

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

Tags

Sightings

Nomenclature