cve-2024-50169
Vulnerability from cvelistv5
Published
2024-11-07 09:31
Modified
2024-12-19 09:34
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: vsock: Update rx_bytes on read_skb() Make sure virtio_transport_inc_rx_pkt() and virtio_transport_dec_rx_pkt() calls are balanced (i.e. virtio_vsock_sock::rx_bytes doesn't lie) after vsock_transport::read_skb(). While here, also inform the peer that we've freed up space and it has more credit. Failing to update rx_bytes after packet is dequeued leads to a warning on SOCK_STREAM recv(): [ 233.396654] rx_queue is empty, but rx_bytes is non-zero [ 233.396702] WARNING: CPU: 11 PID: 40601 at net/vmw_vsock/virtio_transport_common.c:589
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3543152f2d330141d9394d28855cb90b860091d2Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/66cd51de31c682a311c2fa25c580b7ea45859dd9Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e5ca2b98090b4bb1c393088c724af6c37812a829Patch
Impacted products
Vendor Product Version
Linux Linux Version: 634f1a7110b439c65fd8a809171c1d2d28bcea6f
Version: 634f1a7110b439c65fd8a809171c1d2d28bcea6f
Version: 634f1a7110b439c65fd8a809171c1d2d28bcea6f
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   Linux Linux Version: 6.4
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/vmw_vsock/virtio_transport_common.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "version": "6.4"
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.59",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.11.*",
              "status": "unaffected",
              "version": "6.11.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.12",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvsock: Update rx_bytes on read_skb()\n\nMake sure virtio_transport_inc_rx_pkt() and virtio_transport_dec_rx_pkt()\ncalls are balanced (i.e. virtio_vsock_sock::rx_bytes doesn\u0027t lie) after\nvsock_transport::read_skb().\n\nWhile here, also inform the peer that we\u0027ve freed up space and it has more\ncredit.\n\nFailing to update rx_bytes after packet is dequeued leads to a warning on\nSOCK_STREAM recv():\n\n[  233.396654] rx_queue is empty, but rx_bytes is non-zero\n[  233.396702] WARNING: CPU: 11 PID: 40601 at net/vmw_vsock/virtio_transport_common.c:589"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-12-19T09:34:33.435Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/66cd51de31c682a311c2fa25c580b7ea45859dd9"
        },
        {
          "url": "https://git.kernel.org/stable/c/e5ca2b98090b4bb1c393088c724af6c37812a829"
        },
        {
          "url": "https://git.kernel.org/stable/c/3543152f2d330141d9394d28855cb90b860091d2"
        }
      ],
      "title": "vsock: Update rx_bytes on read_skb()",
      "x_generator": {
        "engine": "bippy-5f407fcff5a0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-50169",
    "datePublished": "2024-11-07T09:31:45.804Z",
    "dateReserved": "2024-10-21T19:36:19.962Z",
    "dateUpdated": "2024-12-19T09:34:33.435Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-50169\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-11-07T10:15:08.033\",\"lastModified\":\"2024-11-22T16:58:47.103\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nvsock: Update rx_bytes on read_skb()\\n\\nMake sure virtio_transport_inc_rx_pkt() and virtio_transport_dec_rx_pkt()\\ncalls are balanced (i.e. virtio_vsock_sock::rx_bytes doesn\u0027t lie) after\\nvsock_transport::read_skb().\\n\\nWhile here, also inform the peer that we\u0027ve freed up space and it has more\\ncredit.\\n\\nFailing to update rx_bytes after packet is dequeued leads to a warning on\\nSOCK_STREAM recv():\\n\\n[  233.396654] rx_queue is empty, but rx_bytes is non-zero\\n[  233.396702] WARNING: CPU: 11 PID: 40601 at net/vmw_vsock/virtio_transport_common.c:589\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: vsock: Actualizar rx_bytes en read_skb() Aseg\u00farese de que las llamadas a virtio_transport_inc_rx_pkt() y virtio_transport_dec_rx_pkt() est\u00e9n equilibradas (es decir, virtio_vsock_sock::rx_bytes no mienta) despu\u00e9s de vsock_transport::read_skb(). Mientras est\u00e9 aqu\u00ed, tambi\u00e9n informe al par que hemos liberado espacio y que tiene m\u00e1s cr\u00e9dito. Si no se actualiza rx_bytes despu\u00e9s de que se saca el paquete de la cola, se genera una advertencia en SOCK_STREAM recv(): [ 233.396654] rx_queue est\u00e1 vac\u00edo, pero rx_bytes no es cero [ 233.396702] ADVERTENCIA: CPU: 11 PID: 40601 en net/vmw_vsock/virtio_transport_common.c:589\"}],\"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:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"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\":\"6.4\",\"versionEndExcluding\":\"6.6.59\",\"matchCriteriaId\":\"F0663E1D-0BCE-4D24-BFE4-F9C52687DD40\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.11.6\",\"matchCriteriaId\":\"E4486B12-007B-4794-9857-F07145637AA1\"},{\"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/3543152f2d330141d9394d28855cb90b860091d2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/66cd51de31c682a311c2fa25c580b7ea45859dd9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e5ca2b98090b4bb1c393088c724af6c37812a829\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
  }
}


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