{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "2acc5cae292355f5f18ad377a2a966e7f03c8fec"
            },
            {
              "fixed": "cfd1bab66b042da7a778786685125656c695931b"
            },
            {
              "fixed": "d0479c2b12974aa188b10d221a5770126b118b6d"
            },
            {
              "fixed": "ffc07790539736a5d029f6a3c966b46c529f93a8"
            },
            {
              "fixed": "af9b65b29af341932625c4283dc7a23cdb62688a"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "2fcbf07a4f23174a45e015b62a8e42ddbc2e53ef"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "5.7.9"
            },
            {
              "fixed": "5.8"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.8.0"
            },
            {
              "fixed": "6.12.97"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.40"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72469.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nxprtrdma: Fix ep kref imbalance on ADDR_CHANGE\n\nrpcrdma_cm_event_handler() falls through to the disconnected: label\non RDMA_CM_EVENT_ADDR_CHANGE and calls rpcrdma_ep_put() with no\nmatching get when the event arrives before RDMA_CM_EVENT_ESTABLISHED.\nThe kref then underflows during connect teardown and\nrpcrdma_xprt_disconnect() operates on a freed ep.\n\nReference counts across a normal connection lifecycle:\n\n    rpcrdma_ep_create()             kref_init     -\u003e1\n    rpcrdma_xprt_connect()          ep_get        -\u003e2  (before post_recvs)\n    RDMA_CM_EVENT_ESTABLISHED       ep_get        -\u003e3\n    RDMA_CM_EVENT_DISCONNECTED      ep_put        -\u003e2\n    rpcrdma_xprt_drain()            ep_put        -\u003e1\n    rpcrdma_xprt_disconnect() tail  ep_put        -\u003e0  (ep_destroy)\n\nThe connect-time get in rpcrdma_xprt_connect(), taken just before\nrpcrdma_post_recvs() \"while there are outstanding Receives,\" is\nbalanced by rpcrdma_xprt_drain. ADDR_CHANGE before ESTABLISHED has\nno get to consume, so its put drops the count to 1 and the drain\nput then frees the ep while rpcrdma_xprt_disconnect() still holds a\npointer to it.\n\nFix by dispatching on the prior re_connect_status via xchg(): for\nprev == 0 (pre-ESTABLISHED) wake the connect waiter and return with\nno put; for prev == 1 call rpcrdma_force_disconnect() and return.\nThe case-1 arm relies on the subsequent RDMA_CM_EVENT_DISCONNECTED\nevent -- reliably delivered when rdma_disconnect() is called on a\nstill-connected cm_id -- to balance the ESTABLISHED get;\nrpcrdma_xprt_drain() continues to balance only that connect-time\nget. Any other prior value means teardown is already in flight.",
  "id": "CVE-2026-72469",
  "modified": "2026-08-18T03:31:18.809692229Z",
  "published": "2026-08-15T05:57:11.829Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/af9b65b29af341932625c4283dc7a23cdb62688a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cfd1bab66b042da7a778786685125656c695931b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d0479c2b12974aa188b10d221a5770126b118b6d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ffc07790539736a5d029f6a3c966b46c529f93a8"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72469.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72469"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "xprtrdma: Fix ep kref imbalance on ADDR_CHANGE"
}