cve-2022-48985
Vulnerability from cvelistv5
Published
2024-10-21 20:06
Modified
2024-12-19 08:11
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: net: mana: Fix race on per-CQ variable napi work_done After calling napi_complete_done(), the NAPIF_STATE_SCHED bit may be cleared, and another CPU can start napi thread and access per-CQ variable, cq->work_done. If the other thread (for example, from busy_poll) sets it to a value >= budget, this thread will continue to run when it should stop, and cause memory corruption and panic. To fix this issue, save the per-CQ work_done variable in a local variable before napi_complete_done(), so it won't be corrupted by a possible concurrent thread after napi_complete_done(). Also, add a flag bit to advertise to the NIC firmware: the NAPI work_done variable race is fixed, so the driver is able to reliably support features like busy_poll.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/18010ff776fa42340efc428b3ea6d19b3e7c7b21Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6740d8572ccd1bca50d8a1ca2bedc333f50ed5f3Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fe50a9bbeb1f042e756c5cfa7708112c944368dePatch
Impacted products
Vendor Product Version
Linux Linux Version: e1b5683ff62e7b328317aec08869495992053e9d
Version: e1b5683ff62e7b328317aec08869495992053e9d
Version: e1b5683ff62e7b328317aec08869495992053e9d
 Create a notification for this product.
   Linux Linux Version: 5.15
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2022-48985",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-10-22T13:17:20.394145Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-10-22T13:18:43.146Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/microsoft/mana/gdma.h",
            "drivers/net/ethernet/microsoft/mana/mana_en.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "fe50a9bbeb1f042e756c5cfa7708112c944368de",
              "status": "affected",
              "version": "e1b5683ff62e7b328317aec08869495992053e9d",
              "versionType": "git"
            },
            {
              "lessThan": "6740d8572ccd1bca50d8a1ca2bedc333f50ed5f3",
              "status": "affected",
              "version": "e1b5683ff62e7b328317aec08869495992053e9d",
              "versionType": "git"
            },
            {
              "lessThan": "18010ff776fa42340efc428b3ea6d19b3e7c7b21",
              "status": "affected",
              "version": "e1b5683ff62e7b328317aec08869495992053e9d",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/microsoft/mana/gdma.h",
            "drivers/net/ethernet/microsoft/mana/mana_en.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.15"
            },
            {
              "lessThan": "5.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.83",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: mana: Fix race on per-CQ variable napi work_done\n\nAfter calling napi_complete_done(), the NAPIF_STATE_SCHED bit may be\ncleared, and another CPU can start napi thread and access per-CQ variable,\ncq-\u003ework_done. If the other thread (for example, from busy_poll) sets\nit to a value \u003e= budget, this thread will continue to run when it should\nstop, and cause memory corruption and panic.\n\nTo fix this issue, save the per-CQ work_done variable in a local variable\nbefore napi_complete_done(), so it won\u0027t be corrupted by a possible\nconcurrent thread after napi_complete_done().\n\nAlso, add a flag bit to advertise to the NIC firmware: the NAPI work_done\nvariable race is fixed, so the driver is able to reliably support features\nlike busy_poll."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-12-19T08:11:55.577Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/fe50a9bbeb1f042e756c5cfa7708112c944368de"
        },
        {
          "url": "https://git.kernel.org/stable/c/6740d8572ccd1bca50d8a1ca2bedc333f50ed5f3"
        },
        {
          "url": "https://git.kernel.org/stable/c/18010ff776fa42340efc428b3ea6d19b3e7c7b21"
        }
      ],
      "title": "net: mana: Fix race on per-CQ variable napi work_done",
      "x_generator": {
        "engine": "bippy-5f407fcff5a0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-48985",
    "datePublished": "2024-10-21T20:06:01.802Z",
    "dateReserved": "2024-08-22T01:27:53.633Z",
    "dateUpdated": "2024-12-19T08:11:55.577Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-48985\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-10-21T20:15:10.463\",\"lastModified\":\"2024-11-07T19:35:06.407\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet: mana: Fix race on per-CQ variable napi work_done\\n\\nAfter calling napi_complete_done(), the NAPIF_STATE_SCHED bit may be\\ncleared, and another CPU can start napi thread and access per-CQ variable,\\ncq-\u003ework_done. If the other thread (for example, from busy_poll) sets\\nit to a value \u003e= budget, this thread will continue to run when it should\\nstop, and cause memory corruption and panic.\\n\\nTo fix this issue, save the per-CQ work_done variable in a local variable\\nbefore napi_complete_done(), so it won\u0027t be corrupted by a possible\\nconcurrent thread after napi_complete_done().\\n\\nAlso, add a flag bit to advertise to the NIC firmware: the NAPI work_done\\nvariable race is fixed, so the driver is able to reliably support features\\nlike busy_poll.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: mana: Corregir ejecuci\u00f3n en la variable per-CQ napi work_done Despu\u00e9s de llamar a napi_complete_done(), el bit NAPIF_STATE_SCHED puede borrarse, y otra CPU puede iniciar el hilo napi y acceder a la variable per-CQ, cq-\u0026gt;work_done. Si el otro hilo (por ejemplo, desde busy_poll) lo establece en un valor \u0026gt;= budget, este hilo seguir\u00e1 ejecut\u00e1ndose cuando deber\u00eda detenerse, y provocar\u00e1 corrupci\u00f3n de memoria y p\u00e1nico. Para solucionar este problema, guarde la variable per-CQ work_done en una variable local antes de napi_complete_done(), para que no se corrompa por un posible hilo concurrente despu\u00e9s de napi_complete_done(). Adem\u00e1s, agregue un bit de bandera para anunciar al firmware NIC: la ejecuci\u00f3n de la variable NAPI work_done est\u00e1 fija, por lo que el controlador puede soportar de forma fiable funciones como busy_poll.\"}],\"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\":\"5.15\",\"versionEndExcluding\":\"5.15.83\",\"matchCriteriaId\":\"596123A2-9BD2-4865-9AD9-98254B11C8C7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.0.13\",\"matchCriteriaId\":\"389392A7-81C4-4C26-884B-8C7CF0F53DA4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"E7E331DA-1FB0-4DEC-91AC-7DA69D461C11\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"17F0B248-42CF-4AE6-A469-BB1BAE7F4705\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"E2422816-0C14-4B5E-A1E6-A9D776E5C49B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"1C6E00FE-5FB9-4D20-A1A1-5A32128F9B76\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"35B26BE4-43A6-4A36-A7F6-5B3F572D9186\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc6:*:*:*:*:*:*\",\"matchCriteriaId\":\"3FFFB0B3-930D-408A-91E2-BAE0C2715D80\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc7:*:*:*:*:*:*\",\"matchCriteriaId\":\"8535320E-A0DB-4277-800E-D0CE5BBA59E8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1:rc8:*:*:*:*:*:*\",\"matchCriteriaId\":\"21718AA4-4056-40F2-968E-BDAA465A7872\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/18010ff776fa42340efc428b3ea6d19b3e7c7b21\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/6740d8572ccd1bca50d8a1ca2bedc333f50ed5f3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/fe50a9bbeb1f042e756c5cfa7708112c944368de\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2022-48985\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-10-22T13:17:20.394145Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-10-22T13:17:23.603Z\"}}], \"cna\": {\"title\": \"net: mana: Fix race on per-CQ variable napi work_done\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"e1b5683ff62e7b328317aec08869495992053e9d\", \"lessThan\": \"fe50a9bbeb1f042e756c5cfa7708112c944368de\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e1b5683ff62e7b328317aec08869495992053e9d\", \"lessThan\": \"6740d8572ccd1bca50d8a1ca2bedc333f50ed5f3\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e1b5683ff62e7b328317aec08869495992053e9d\", \"lessThan\": \"18010ff776fa42340efc428b3ea6d19b3e7c7b21\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/net/ethernet/microsoft/mana/gdma.h\", \"drivers/net/ethernet/microsoft/mana/mana_en.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.15\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.15\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.15.83\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.0.13\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.0.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/net/ethernet/microsoft/mana/gdma.h\", \"drivers/net/ethernet/microsoft/mana/mana_en.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/fe50a9bbeb1f042e756c5cfa7708112c944368de\"}, {\"url\": \"https://git.kernel.org/stable/c/6740d8572ccd1bca50d8a1ca2bedc333f50ed5f3\"}, {\"url\": \"https://git.kernel.org/stable/c/18010ff776fa42340efc428b3ea6d19b3e7c7b21\"}], \"x_generator\": {\"engine\": \"bippy-5f407fcff5a0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet: mana: Fix race on per-CQ variable napi work_done\\n\\nAfter calling napi_complete_done(), the NAPIF_STATE_SCHED bit may be\\ncleared, and another CPU can start napi thread and access per-CQ variable,\\ncq-\u003ework_done. If the other thread (for example, from busy_poll) sets\\nit to a value \u003e= budget, this thread will continue to run when it should\\nstop, and cause memory corruption and panic.\\n\\nTo fix this issue, save the per-CQ work_done variable in a local variable\\nbefore napi_complete_done(), so it won\u0027t be corrupted by a possible\\nconcurrent thread after napi_complete_done().\\n\\nAlso, add a flag bit to advertise to the NIC firmware: the NAPI work_done\\nvariable race is fixed, so the driver is able to reliably support features\\nlike busy_poll.\"}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2024-12-19T08:11:55.577Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-48985\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-12-19T08:11:55.577Z\", \"dateReserved\": \"2024-08-22T01:27:53.633Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-10-21T20:06:01.802Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.