vsock: Update rx_bytes on read_skb()

{
  "id": "2a65f2113da94f9de8f0b78ce6f55e7f6c50034e23ac6993b00e3606488fd87b",
  "url": "https://osv.dev/vulnerability/CVE-2024-50169",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "vsock: Update rx_bytes on read_skb()",
    "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",
    "evidence": "osv:CVE-2024-50169",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.6.59",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.11.6",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "CVE-2024-50169",
      "aliases": [
        "CVE-2024-50169"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "634f1a7110b439c65fd8a809171c1d2d28bcea6f"
                },
                {
                  "fixed": "66cd51de31c682a311c2fa25c580b7ea45859dd9"
                },
                {
                  "fixed": "e5ca2b98090b4bb1c393088c724af6c37812a829"
                },
                {
                  "fixed": "3543152f2d330141d9394d28855cb90b860091d2"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-50169.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.4.0"
                },
                {
                  "fixed": "6.6.59"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.11.6"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-50169.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:31.709740741Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/3543152f2d330141d9394d28855cb90b860091d2",
        "https://git.kernel.org/stable/c/66cd51de31c682a311c2fa25c580b7ea45859dd9",
        "https://git.kernel.org/stable/c/e5ca2b98090b4bb1c393088c724af6c37812a829",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/50xxx/CVE-2024-50169.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-50169",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/50xxx/CVE-2024-50169.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-50169",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 498368,
  "published_at": "2024-11-07T09:31:45.804+00:00"
}