cve-2024-50192
Vulnerability from cvelistv5
Published
2024-11-08 05:54
Modified
2024-12-19 09:35
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: irqchip/gic-v4: Don't allow a VMOVP on a dying VPE Kunkun Jiang reported that there is a small window of opportunity for userspace to force a change of affinity for a VPE while the VPE has already been unmapped, but the corresponding doorbell interrupt still visible in /proc/irq/. Plug the race by checking the value of vmapp_count, which tracks whether the VPE is mapped ot not, and returning an error in this case. This involves making vmapp_count common to both GICv4.1 and its v4.0 ancestor.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/01282ab5182f85e42234df2ff42f0ce790f465ffPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1442ee0011983f0c5c4b92380e6853afb513841aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/64b12b061c5488e2d69e67c4eaae5da64fd30bfePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/755b9532c885b8761fb135fedcd705e21e61cccbPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b7d7b7fc876f836f40bf48a87e07ea18756ba196Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d960505a869e66184fff97fb334980a5b797c7c6Patch
Impacted products
Vendor Product Version
Linux Linux Version: 5.6
Show details on NVD website

To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/irqchip/irq-gic-v3-its.c",
            "include/linux/irqchip/arm-gic-v4.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
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          "product": "Linux",
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          "vendor": "Linux",
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              "version": "0",
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              "status": "unaffected",
              "version": "6.6.58",
              "versionType": "semver"
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              "version": "6.11.5",
              "versionType": "semver"
            },
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              "lessThanOrEqual": "*",
              "status": "unaffected",
              "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\nirqchip/gic-v4: Don\u0027t allow a VMOVP on a dying VPE\n\nKunkun Jiang reported that there is a small window of opportunity for\nuserspace to force a change of affinity for a VPE while the VPE has already\nbeen unmapped, but the corresponding doorbell interrupt still visible in\n/proc/irq/.\n\nPlug the race by checking the value of vmapp_count, which tracks whether\nthe VPE is mapped ot not, and returning an error in this case.\n\nThis involves making vmapp_count common to both GICv4.1 and its v4.0\nancestor."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-12-19T09:35:09.839Z",
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        "shortName": "Linux"
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      "references": [
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        },
        {
          "url": "https://git.kernel.org/stable/c/1442ee0011983f0c5c4b92380e6853afb513841a"
        }
      ],
      "title": "irqchip/gic-v4: Don\u0027t allow a VMOVP on a dying VPE",
      "x_generator": {
        "engine": "bippy-5f407fcff5a0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-50192",
    "datePublished": "2024-11-08T05:54:07.535Z",
    "dateReserved": "2024-10-21T19:36:19.967Z",
    "dateUpdated": "2024-12-19T09:35:09.839Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-50192\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-11-08T06:15:16.100\",\"lastModified\":\"2024-11-29T19:00:45.733\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nirqchip/gic-v4: Don\u0027t allow a VMOVP on a dying VPE\\n\\nKunkun Jiang reported that there is a small window of opportunity for\\nuserspace to force a change of affinity for a VPE while the VPE has already\\nbeen unmapped, but the corresponding doorbell interrupt still visible in\\n/proc/irq/.\\n\\nPlug the race by checking the value of vmapp_count, which tracks whether\\nthe VPE is mapped ot not, and returning an error in this case.\\n\\nThis involves making vmapp_count common to both GICv4.1 and its v4.0\\nancestor.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: irqchip/gic-v4: No permitir un VMOVP en un VPE moribundo Kunkun Jiang inform\u00f3 que hay una peque\u00f1a ventana de oportunidad para que el espacio de usuario fuerce un cambio de afinidad para un VPE mientras el VPE ya ha sido desasignado, pero la interrupci\u00f3n del timbre correspondiente a\u00fan es visible en /proc/irq/. Conecte la ejecuci\u00f3n verificando el valor de vmapp_count, que rastrea si el VPE est\u00e1 asignado o no, y devuelve un error en este caso. Esto implica hacer que vmapp_count sea com\u00fan tanto para GICv4.1 como para su antecesor v4.0.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":4.7,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.0,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.6\",\"versionEndExcluding\":\"5.10.228\",\"matchCriteriaId\":\"23D95807-ADA5-452C-BBD3-C14EA7B6CC6D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.169\",\"matchCriteriaId\":\"18BEDAD6-86F8-457C-952F-C35698B3D07F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.114\",\"matchCriteriaId\":\"10FD2B3E-C7D9-4A9C-BD64-41877EDF88EB\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.58\",\"matchCriteriaId\":\"6B9489BC-825E-4EEE-8D93-F93C801988C8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.11.5\",\"matchCriteriaId\":\"6E62D61A-F704-44DB-A311-17B7534DA7BC\"},{\"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\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"3C95E234-D335-4B6C-96BF-E2CEBD8654ED\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/01282ab5182f85e42234df2ff42f0ce790f465ff\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/1442ee0011983f0c5c4b92380e6853afb513841a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/64b12b061c5488e2d69e67c4eaae5da64fd30bfe\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/755b9532c885b8761fb135fedcd705e21e61cccb\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b7d7b7fc876f836f40bf48a87e07ea18756ba196\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/d960505a869e66184fff97fb334980a5b797c7c6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
  }
}


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