{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:13",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.12.85-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.19.13-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  rxrpc: Only put the call ref if one was acquired  rxrpc_input_packet_on_conn() can process a to-client packet after the current client call on the channel has already been torn down.  In that case chan-\u003ecall is NULL, rxrpc_try_get_call() returns NULL and there is no reference to drop.  The client-side implicit-end error path does not account for that and unconditionally calls rxrpc_put_call().  This turns a protocol error path into a kernel crash instead of rejecting the packet.  Only drop the call reference if one was actually acquired.  Keep the existing protocol error handling unchanged.",
  "id": "DEBIAN-CVE-2026-31638",
  "modified": "2026-09-14T16:47:36.554074011Z",
  "published": "2026-04-24T15:16:43.127Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-31638"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "upstream": [
    "CVE-2026-31638"
  ]
}