{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "8f000cac6e7a6edca7ab93bafc7ed28b27c1545b"
            },
            {
              "fixed": "91cfa74f1f3772e8c3662c064a45d8633e00c78e"
            },
            {
              "fixed": "156ec10a8be2c33b0c279d8b2f4fe8e16fa89ef7"
            },
            {
              "fixed": "9584b3c30e4ee8ca315bdc12249cc6c47cf1a482"
            },
            {
              "fixed": "5cc3b21729d45b5af8f79891f9dedb7e6b6dbd08"
            },
            {
              "fixed": "ca795fc1d8a1a4ab0e6bd1d27c9adb78d4ed1a1c"
            },
            {
              "fixed": "d553a9dc1c45666e76d8d2ac9a4f8ff0cbf53a50"
            },
            {
              "fixed": "0114dd303b373522dea06053aabae34bdd33a7c4"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.8.0"
            },
            {
              "fixed": "5.15.221"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.188"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.157"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.110"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.52"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93151.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvmet-rdma: fix response resource leak on queue teardown\n\nWhen an nvme target with rdma transport is removed while I/Os are in\nflight, a response can be posted but its send completion is never\ndelivered before the connection is torn down. As a result\nnvmet_rdma_send_done() and nvmet_rdma_release_rsp() are never called for\nthe response, and this leaks the allocated RDMA read/write context and\nrequest SGLs.\n\nThese leaks are recreated by running blktests nvme/061 with the rdma\ntransport and the siw driver. Kernel kmemleak feature reports them as\nfollows:\n\n  unreferenced object 0xffff88812bc490c0 (size 32):\n    comm \"kworker/2:1H\", pid 409, jiffies 4307744490\n    backtrace (crc 89afd339):\n      __kmalloc_noprof+0x5f9/0x890\n      sgl_alloc_order+0x7b/0x380\n      nvmet_req_alloc_sgls+0x290/0x4f0 [nvmet]\n      nvmet_rdma_map_sgl_keyed+0x241/0x12e0 [nvmet_rdma]\n      nvmet_rdma_handle_command+0x73e/0xb80 [nvmet_rdma]\n      __ib_process_cq+0x149/0x4c0 [ib_core]\n      ib_cq_poll_work+0x49/0x160 [ib_core]\n      process_one_work+0x8b2/0x1640\n      worker_thread+0x5fd/0xfe0\n      kthread+0x367/0x460\n      ret_from_fork+0x655/0x9d0\n      ret_from_fork_asm+0x1a/0x30\n\n  unreferenced object 0xffff88814bd05e80 (size 64):\n    comm \"kworker/3:1H\", pid 148, jiffies 4295195428\n    backtrace (crc e35510cb):\n      __kmalloc_noprof+0x5f9/0x890\n      rdma_rw_ctx_init+0x333/0x1fa0 [ib_core]\n      nvmet_rdma_map_sgl_keyed+0x5c8/0x12e0 [nvmet_rdma]\n      nvmet_rdma_handle_command+0x73e/0xb80 [nvmet_rdma]\n      __ib_process_cq+0x149/0x4c0 [ib_core]\n      ib_cq_poll_work+0x49/0x160 [ib_core]\n      process_one_work+0x8b2/0x1640\n      worker_thread+0x5fd/0xfe0\n      kthread+0x367/0x460\n      ret_from_fork+0x655/0x9d0\n      ret_from_fork_asm+0x1a/0x30\n\nTo avoid the memory leaks, reclaim the memory of the in-flight responses\nwhen the queue QP is torn down. Call nvmet_rdma_free_rsp_resources()\nthat frees up the RDMA read/write context and the request SGLs of such\nresponses.",
  "id": "CVE-2026-93151",
  "modified": "2026-09-19T03:30:17.116070117Z",
  "published": "2026-09-17T16:11:47.559Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0114dd303b373522dea06053aabae34bdd33a7c4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/156ec10a8be2c33b0c279d8b2f4fe8e16fa89ef7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5cc3b21729d45b5af8f79891f9dedb7e6b6dbd08"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/91cfa74f1f3772e8c3662c064a45d8633e00c78e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9584b3c30e4ee8ca315bdc12249cc6c47cf1a482"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ca795fc1d8a1a4ab0e6bd1d27c9adb78d4ed1a1c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d553a9dc1c45666e76d8d2ac9a4f8ff0cbf53a50"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93151.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93151"
    },
    {
      "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:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "nvmet-rdma: fix response resource leak on queue teardown"
}