High

nvmet-rdma: fix response resource leak on queue teardown

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: nvmet-rdma: fix response resource leak on queue teardown When an nvme target with rdma transport is removed while I/Os are in flight, a response can be posted but its send completion is never delivered before the connection is torn down. As a result nvmet_rdma_send_done() and nvmet_rdma_release_rsp() are never called for the response, and this leaks the allocated RDMA read/write context and request SGLs. These leaks are recreated by running blktests nvme/061 with the rdma transport and the siw driver. Kernel kmemleak feature reports them as follows: unreferenced object 0xffff88812bc490c0 (size 32): comm "kworker/2:1H", pid 409, jiffies 4307744490 backtrace (crc 89afd339): __kmalloc_noprof+0x5f9/0x890 sgl_alloc_order+0x7b/0x380 nvmet_req_alloc_sgls+0x290/0x4f0 [nvmet] nvmet_rdma_map_sgl_keyed+0x241/0x12e0 [nvmet_rdma] nvmet_rdma_handle_command+0x73e/0xb80 [nvmet_rdma] __ib_process_cq+0x149/0x4c0 [ib_core] ib_cq_poll_work+0x49/0x160 [ib_core] process_one_work+0x8b2/0x1640 worker_thread+0x5fd/0xfe0 kthread+0x367/0x460 ret_from_fork+0x655/0x9d0 ret_from_fork_asm+0x1a/0x30 unreferenced object 0xffff88814bd05e80 (size 64): comm "kworker/3:1H", pid 148, jiffies 4295195428 backtrace (crc e35510cb): __kmalloc_noprof+0x5f9/0x890 rdma_rw_ctx_init+0x333/0x1fa0 [ib_core] nvmet_rdma_map_sgl_keyed+0x5c8/0x12e0 [nvmet_rdma] nvmet_rdma_handle_command+0x73e/0xb80 [nvmet_rdma] __ib_process_cq+0x149/0x4c0 [ib_core] ib_cq_poll_wo

Announced 17 Sept 2026Group revision 1

Original source ↗

CVE-2026-93151

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-93151

Linux

Source reference: /containers/cna/affected/0/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "8f000cac6e7a6edca7ab93bafc7ed28b27c1545b",
        "lessThan": "91cfa74f1f3772e8c3662c064a45d8633e00c78e",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "8f000cac6e7a6edca7ab93bafc7ed28b27c1545b",
        "lessThan": "156ec10a8be2c33b0c279d8b2f4fe8e16fa89ef7",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "8f000cac6e7a6edca7ab93bafc7ed28b27c1545b",
        "lessThan": "9584b3c30e4ee8ca315bdc12249cc6c47cf1a482",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "8f000cac6e7a6edca7ab93bafc7ed28b27c1545b",
        "lessThan": "5cc3b21729d45b5af8f79891f9dedb7e6b6dbd08",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "8f000cac6e7a6edca7ab93bafc7ed28b27c1545b",
        "lessThan": "ca795fc1d8a1a4ab0e6bd1d27c9adb78d4ed1a1c",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "8f000cac6e7a6edca7ab93bafc7ed28b27c1545b",
        "lessThan": "d553a9dc1c45666e76d8d2ac9a4f8ff0cbf53a50",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "8f000cac6e7a6edca7ab93bafc7ed28b27c1545b",
        "lessThan": "0114dd303b373522dea06053aabae34bdd33a7c4",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/nvme/target/rdma.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "4.8"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "4.8",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.15.221",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.188",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.157",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.110",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.52",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.2.6",
        "versionType": "semver",
        "lessThanOrEqual": "7.2.*"
      },
      {
        "status": "unaffected",
        "version": "7.3",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/nvme/target/rdma.c"
    ],
    "defaultStatus": "affected"
  }
]

Related CVEs: CVE-2026-93151
Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event: #37868 · Revision 1
Added to Heist Feed: Sun, 25 Oct 2026 10:20:19 GMT
Publisher date: Thu, 17 Sep 2026 16:11:47 GMT

Read the original announcement

Revision history

25 Oct 2026CVE-2026-93151 · Revision 1Source updated