cve-2024-50042
Vulnerability from cvelistv5
Published
2024-10-21 19:39
Modified
2024-12-19 09:31
Severity ?
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bce9af1b030bf59d51bbabf909a3ef164787e44ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cbda6197929418fabf0e45ecf9b7a76360944c70Patch
Impacted products
Vendor Product Version
Linux Linux Version: 2a2cb4c6c18130e9f14d2e39deb75590744d98ef
Version: 2a2cb4c6c18130e9f14d2e39deb75590744d98ef
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   Linux Linux Version: 6.8
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{
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            "other": {
              "content": {
                "id": "CVE-2024-50042",
                "options": [
                  {
                    "Exploitation": "none"
                  },
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                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
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                "role": "CISA Coordinator",
                "timestamp": "2024-10-22T13:24:38.498470Z",
                "version": "2.0.3"
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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    "cna": {
      "affected": [
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          "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"
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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            "drivers/net/ethernet/intel/ice/ice_vf_lib.c",
            "drivers/net/ethernet/intel/ice/ice_vf_lib_private.h"
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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              "version": "6.12",
              "versionType": "original_commit_for_fix"
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      "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": "2024-12-19T09:31:57.509Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "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-5f407fcff5a0"
      }
    }
  },
  "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": "2024-12-19T09:31:57.509Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-50042\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-10-21T20:15:17.200\",\"lastModified\":\"2024-11-22T17:21:37.140\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"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/$VF0_PCI/sriov_vf_msix_count\\n\\nDefault MSI-X is 16, so 17 and above triggers this issue.\\n\\nKASAN reports:\\n\\n  BUG: KASAN: slab-out-of-bounds in ice_vsi_alloc_ring_stats+0x38d/0x4b0 [ice]\\n  Read of size 8 at addr ffff8888b937d180 by task bash/28433\\n  (...)\\n\\n  Call Trace:\\n   (...)\\n   ? ice_vsi_alloc_ring_stats+0x38d/0x4b0 [ice]\\n   kasan_report+0xed/0x120\\n   ? ice_vsi_alloc_ring_stats+0x38d/0x4b0 [ice]\\n   ice_vsi_alloc_ring_stats+0x38d/0x4b0 [ice]\\n   ice_vsi_cfg_def+0x3360/0x4770 [ice]\\n   ? mutex_unlock+0x83/0xd0\\n   ? __pfx_ice_vsi_cfg_def+0x10/0x10 [ice]\\n   ? __pfx_ice_remove_vsi_lkup_fltr+0x10/0x10 [ice]\\n   ice_vsi_cfg+0x7f/0x3b0 [ice]\\n   ice_vf_reconfig_vsi+0x114/0x210 [ice]\\n   ice_sriov_set_msix_vec_count+0x3d0/0x960 [ice]\\n   sriov_vf_msix_count_store+0x21c/0x300\\n   (...)\\n\\n  Allocated by task 28201:\\n   (...)\\n   ice_vsi_cfg_def+0x1c8e/0x4770 [ice]\\n   ice_vsi_cfg+0x7f/0x3b0 [ice]\\n   ice_vsi_setup+0x179/0xa30 [ice]\\n   ice_sriov_configure+0xcaa/0x1520 [ice]\\n   sriov_numvfs_store+0x212/0x390\\n   (...)\\n\\nTo fix it, use ice_vsi_rebuild() instead of ice_vf_reconfig_vsi(). This\\ncauses the required arrays to be reallocated taking the new queue count\\ninto account (ice_vsi_realloc_stat_arrays()). Set req_txq and req_rxq\\nbefore ice_vsi_rebuild(), so that realloc uses the newly set queue\\ncount.\\n\\nAdditionally, ice_vsi_rebuild() does not remove VSI filters\\n(ice_fltr_remove_all()), so ice_vf_init_host_cfg() is no longer\\nnecessary.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ice: Fix increasing MSI-X on VF Aumentar el valor de MSI-X en un VF conduce a operaciones de memoria no v\u00e1lidas. Esto se debe a que no se reasignan algunas matrices. Reproductor: modprobe ice echo 0 \u0026gt; /sys/bus/pci/devices/$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.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H\",\"baseScore\":7.1,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.2}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-125\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7.10\",\"versionEndExcluding\":\"6.8\",\"matchCriteriaId\":\"15130BF0-E913-4EC3-B479-B8FA35896797\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.8\",\"versionEndExcluding\":\"6.11.4\",\"matchCriteriaId\":\"C354E062-80AD-4947-809C-E798BC6AAA39\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"7F361E1D-580F-4A2D-A509-7615F73167A1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"925478D0-3E3D-4E6F-ACD5-09F28D5DF82C\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/bce9af1b030bf59d51bbabf909a3ef164787e44e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/cbda6197929418fabf0e45ecf9b7a76360944c70\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-50042\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-10-22T13:24:38.498470Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-10-22T13:24:42.242Z\"}}], \"cna\": {\"title\": \"ice: Fix increasing MSI-X on VF\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"2a2cb4c6c181\", \"lessThan\": \"cbda61979294\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"2a2cb4c6c181\", \"lessThan\": \"bce9af1b030b\", \"versionType\": \"git\"}], \"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\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.8\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"6.8\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"6.11.4\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.11.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12-rc3\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"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\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/cbda6197929418fabf0e45ecf9b7a76360944c70\"}, {\"url\": \"https://git.kernel.org/stable/c/bce9af1b030bf59d51bbabf909a3ef164787e44e\"}], \"x_generator\": {\"engine\": \"bippy-9e1c9544281a\"}, \"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\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2024-11-05T09:54:01.977Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-50042\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-11-05T09:54:01.977Z\", \"dateReserved\": \"2024-10-21T12:17:06.071Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-10-21T19:39:41.084Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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