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CVE-2024-50042 (GCVE-0-2024-50042)

Vulnerability from cvelistv5 – Published: 2024-10-21 19:39 – Updated: 2026-05-23 15:54
VLAI
Title
ice: Fix increasing MSI-X on VF
Summary
In the Linux kernel, the following vulnerability has been resolved: ice: Fix increasing MSI-X on VF Increasing MSI-X value on a VF leads to invalid memory operations. This is caused by not reallocating some arrays. Reproducer: modprobe ice echo 0 > /sys/bus/pci/devices/$PF_PCI/sriov_drivers_autoprobe echo 1 > /sys/bus/pci/devices/$PF_PCI/sriov_numvfs echo 17 > /sys/bus/pci/devices/$VF0_PCI/sriov_vf_msix_count Default MSI-X is 16, so 17 and above triggers this issue. KASAN reports: BUG: KASAN: slab-out-of-bounds in ice_vsi_alloc_ring_stats+0x38d/0x4b0 [ice] Read of size 8 at addr ffff8888b937d180 by task bash/28433 (...) Call Trace: (...) ? ice_vsi_alloc_ring_stats+0x38d/0x4b0 [ice] kasan_report+0xed/0x120 ? ice_vsi_alloc_ring_stats+0x38d/0x4b0 [ice] ice_vsi_alloc_ring_stats+0x38d/0x4b0 [ice] ice_vsi_cfg_def+0x3360/0x4770 [ice] ? mutex_unlock+0x83/0xd0 ? __pfx_ice_vsi_cfg_def+0x10/0x10 [ice] ? __pfx_ice_remove_vsi_lkup_fltr+0x10/0x10 [ice] ice_vsi_cfg+0x7f/0x3b0 [ice] ice_vf_reconfig_vsi+0x114/0x210 [ice] ice_sriov_set_msix_vec_count+0x3d0/0x960 [ice] sriov_vf_msix_count_store+0x21c/0x300 (...) Allocated by task 28201: (...) ice_vsi_cfg_def+0x1c8e/0x4770 [ice] ice_vsi_cfg+0x7f/0x3b0 [ice] ice_vsi_setup+0x179/0xa30 [ice] ice_sriov_configure+0xcaa/0x1520 [ice] sriov_numvfs_store+0x212/0x390 (...) To fix it, use ice_vsi_rebuild() instead of ice_vf_reconfig_vsi(). This causes the required arrays to be reallocated taking the new queue count into account (ice_vsi_realloc_stat_arrays()). Set req_txq and req_rxq before ice_vsi_rebuild(), so that realloc uses the newly set queue count. Additionally, ice_vsi_rebuild() does not remove VSI filters (ice_fltr_remove_all()), so ice_vf_init_host_cfg() is no longer necessary.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-10-22 13:24 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 2a2cb4c6c18130e9f14d2e39deb75590744d98ef , < cbda6197929418fabf0e45ecf9b7a76360944c70 (git)
Affected: 2a2cb4c6c18130e9f14d2e39deb75590744d98ef , < bce9af1b030bf59d51bbabf909a3ef164787e44e (git)
Affected: 8910b1cef190545085e9bb486f35dd30ad928a05 (git)
Affected: 6.7.10 , < 6.8 (semver)
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Linux Linux Affected: 6.8
Unaffected: 0 , < 6.8 (semver)
Unaffected: 6.11.4 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nice: Fix increasing MSI-X on VF\n\nIncreasing MSI-X value on a VF leads to invalid memory operations. This\nis caused by not reallocating some arrays.\n\nReproducer:\n  modprobe ice\n  echo 0 \u003e /sys/bus/pci/devices/$PF_PCI/sriov_drivers_autoprobe\n  echo 1 \u003e /sys/bus/pci/devices/$PF_PCI/sriov_numvfs\n  echo 17 \u003e /sys/bus/pci/devices/$VF0_PCI/sriov_vf_msix_count\n\nDefault MSI-X is 16, so 17 and above triggers this issue.\n\nKASAN reports:\n\n  BUG: KASAN: slab-out-of-bounds in ice_vsi_alloc_ring_stats+0x38d/0x4b0 [ice]\n  Read of size 8 at addr ffff8888b937d180 by task bash/28433\n  (...)\n\n  Call Trace:\n   (...)\n   ? ice_vsi_alloc_ring_stats+0x38d/0x4b0 [ice]\n   kasan_report+0xed/0x120\n   ? ice_vsi_alloc_ring_stats+0x38d/0x4b0 [ice]\n   ice_vsi_alloc_ring_stats+0x38d/0x4b0 [ice]\n   ice_vsi_cfg_def+0x3360/0x4770 [ice]\n   ? mutex_unlock+0x83/0xd0\n   ? __pfx_ice_vsi_cfg_def+0x10/0x10 [ice]\n   ? __pfx_ice_remove_vsi_lkup_fltr+0x10/0x10 [ice]\n   ice_vsi_cfg+0x7f/0x3b0 [ice]\n   ice_vf_reconfig_vsi+0x114/0x210 [ice]\n   ice_sriov_set_msix_vec_count+0x3d0/0x960 [ice]\n   sriov_vf_msix_count_store+0x21c/0x300\n   (...)\n\n  Allocated by task 28201:\n   (...)\n   ice_vsi_cfg_def+0x1c8e/0x4770 [ice]\n   ice_vsi_cfg+0x7f/0x3b0 [ice]\n   ice_vsi_setup+0x179/0xa30 [ice]\n   ice_sriov_configure+0xcaa/0x1520 [ice]\n   sriov_numvfs_store+0x212/0x390\n   (...)\n\nTo fix it, use ice_vsi_rebuild() instead of ice_vf_reconfig_vsi(). This\ncauses the required arrays to be reallocated taking the new queue count\ninto account (ice_vsi_realloc_stat_arrays()). Set req_txq and req_rxq\nbefore ice_vsi_rebuild(), so that realloc uses the newly set queue\ncount.\n\nAdditionally, ice_vsi_rebuild() does not remove VSI filters\n(ice_fltr_remove_all()), so ice_vf_init_host_cfg() is no longer\nnecessary."
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            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ice: Fix increasing MSI-X on VF Aumentar el valor de MSI-X en un VF conduce a operaciones de memoria no v\u00e1lidas. Esto se debe a que no se reasignan algunas matrices. Reproductor: modprobe ice echo 0 \u0026gt; /sys/bus/pci/devices/$PF_PCI/sriov_drivers_autoprobe echo 1 \u0026gt; /sys/bus/pci/devices/$PF_PCI/sriov_numvfs echo 17 \u0026gt; /sys/bus/pci/devices/$VF0_PCI/sriov_vf_msix_count El MSI-X predeterminado es 16, por lo que 17 y superior desencadenan este problema. KASAN informa: ERROR: KASAN: slab fuera de los l\u00edmites en ice_vsi_alloc_ring_stats+0x38d/0x4b0 [ice] Lectura de tama\u00f1o 8 en la direcci\u00f3n ffff8888b937d180 por la tarea bash/28433 (...) Seguimiento de llamadas: (...) ? ice_vsi_alloc_ring_stats+0x38d/0x4b0 [ice] kasan_report+0xed/0x120 ? ice_vsi_alloc_ring_stats+0x38d/0x4b0 [ice] ice_vsi_alloc_ring_stats+0x38d/0x4b0 [ice] ice_vsi_alloc_ring_stats+0x38d/0x4b0 [ice] ice_vsi_cfg_def+0x3360/0x4770 [ice] ? mutex_unlock+0x83/0xd0 ? __pfx_ice_vsi_cfg_def+0x10/0x10 [hielo] ? __pfx_ice_remove_vsi_lkup_fltr+0x10/0x10 [hielo] ice_vsi_cfg+0x7f/0x3b0 [hielo] ice_vf_reconfig_vsi+0x114/0x210 [hielo] ice_sriov_set_msix_vec_count+0x3d0/0x960 [hielo] sriov_vf_msix_count_store+0x21c/0x300 (...) Asignado por la tarea 28201: (...) ice_vsi_cfg_def+0x1c8e/0x4770 [hielo] ice_vsi_cfg+0x7f/0x3b0 [hielo] ice_vsi_setup+0x179/0xa30 [hielo] ice_sriov_configure+0xcaa/0x1520 [ice] sriov_numvfs_store+0x212/0x390 (...) Para solucionarlo, utilice ice_vsi_rebuild() en lugar de ice_vf_reconfig_vsi(). Esto hace que las matrices requeridas se reasignen teniendo en cuenta el nuevo recuento de colas (ice_vsi_realloc_stat_arrays()). Establezca req_txq y req_rxq antes de ice_vsi_rebuild(), de modo que realloc utilice el nuevo recuento de colas establecido. Adem\u00e1s, ice_vsi_rebuild() no elimina los filtros VSI (ice_fltr_remove_all()), por lo que ice_vf_init_host_cfg() ya no es necesario."
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      "cve": "CVE-2024-50042",
      "id": "CVE-2024-50042",
      "initial_release_date": "2024-10-21T00:00:00+00:00",
      "product_status:known_affected": "136",
      "product_status:known_not_affected": "62",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: ice: Fix increasing MSI-X on VF",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-50042.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2024-50042",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2024-10-22T13:24:38.498470Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2024-10-22T13:24:42.242Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Linux",
              "programFiles": [
                "drivers/net/ethernet/intel/ice/ice_sriov.c",
                "drivers/net/ethernet/intel/ice/ice_vf_lib.c",
                "drivers/net/ethernet/intel/ice/ice_vf_lib_private.h"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "lessThan": "cbda6197929418fabf0e45ecf9b7a76360944c70",
                  "status": "affected",
                  "version": "2a2cb4c6c18130e9f14d2e39deb75590744d98ef",
                  "versionType": "git"
                },
                {
                  "lessThan": "bce9af1b030bf59d51bbabf909a3ef164787e44e",
                  "status": "affected",
                  "version": "2a2cb4c6c18130e9f14d2e39deb75590744d98ef",
                  "versionType": "git"
                },
                {
                  "status": "affected",
                  "version": "8910b1cef190545085e9bb486f35dd30ad928a05",
                  "versionType": "git"
                },
                {
                  "lessThan": "6.8",
                  "status": "affected",
                  "version": "6.7.10",
                  "versionType": "semver"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "drivers/net/ethernet/intel/ice/ice_sriov.c",
                "drivers/net/ethernet/intel/ice/ice_vf_lib.c",
                "drivers/net/ethernet/intel/ice/ice_vf_lib_private.h"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "6.8"
                },
                {
                  "lessThan": "6.8",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.11.*",
                  "status": "unaffected",
                  "version": "6.11.4",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "6.12",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.11.4",
                      "versionStartIncluding": "6.8",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.12",
                      "versionStartIncluding": "6.8",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionStartIncluding": "6.7.10",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nice: Fix increasing MSI-X on VF\n\nIncreasing MSI-X value on a VF leads to invalid memory operations. This\nis caused by not reallocating some arrays.\n\nReproducer:\n  modprobe ice\n  echo 0 \u003e /sys/bus/pci/devices/$PF_PCI/sriov_drivers_autoprobe\n  echo 1 \u003e /sys/bus/pci/devices/$PF_PCI/sriov_numvfs\n  echo 17 \u003e /sys/bus/pci/devices/$VF0_PCI/sriov_vf_msix_count\n\nDefault MSI-X is 16, so 17 and above triggers this issue.\n\nKASAN reports:\n\n  BUG: KASAN: slab-out-of-bounds in ice_vsi_alloc_ring_stats+0x38d/0x4b0 [ice]\n  Read of size 8 at addr ffff8888b937d180 by task bash/28433\n  (...)\n\n  Call Trace:\n   (...)\n   ? ice_vsi_alloc_ring_stats+0x38d/0x4b0 [ice]\n   kasan_report+0xed/0x120\n   ? ice_vsi_alloc_ring_stats+0x38d/0x4b0 [ice]\n   ice_vsi_alloc_ring_stats+0x38d/0x4b0 [ice]\n   ice_vsi_cfg_def+0x3360/0x4770 [ice]\n   ? mutex_unlock+0x83/0xd0\n   ? __pfx_ice_vsi_cfg_def+0x10/0x10 [ice]\n   ? __pfx_ice_remove_vsi_lkup_fltr+0x10/0x10 [ice]\n   ice_vsi_cfg+0x7f/0x3b0 [ice]\n   ice_vf_reconfig_vsi+0x114/0x210 [ice]\n   ice_sriov_set_msix_vec_count+0x3d0/0x960 [ice]\n   sriov_vf_msix_count_store+0x21c/0x300\n   (...)\n\n  Allocated by task 28201:\n   (...)\n   ice_vsi_cfg_def+0x1c8e/0x4770 [ice]\n   ice_vsi_cfg+0x7f/0x3b0 [ice]\n   ice_vsi_setup+0x179/0xa30 [ice]\n   ice_sriov_configure+0xcaa/0x1520 [ice]\n   sriov_numvfs_store+0x212/0x390\n   (...)\n\nTo fix it, use ice_vsi_rebuild() instead of ice_vf_reconfig_vsi(). This\ncauses the required arrays to be reallocated taking the new queue count\ninto account (ice_vsi_realloc_stat_arrays()). Set req_txq and req_rxq\nbefore ice_vsi_rebuild(), so that realloc uses the newly set queue\ncount.\n\nAdditionally, ice_vsi_rebuild() does not remove VSI filters\n(ice_fltr_remove_all()), so ice_vf_init_host_cfg() is no longer\nnecessary."
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-05-23T15:54:19.578Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/cbda6197929418fabf0e45ecf9b7a76360944c70"
            },
            {
              "url": "https://git.kernel.org/stable/c/bce9af1b030bf59d51bbabf909a3ef164787e44e"
            }
          ],
          "title": "ice: Fix increasing MSI-X on VF",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2024-50042",
        "datePublished": "2024-10-21T19:39:41.084Z",
        "dateReserved": "2024-10-21T12:17:06.071Z",
        "dateUpdated": "2026-05-23T15:54:19.578Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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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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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


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