FKIE_CVE-2026-90411

Vulnerability from fkie_nvd - Published: 2026-09-17 17:17 - Updated: 2026-09-17 17:17
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: nvme-fc: unmap cmd_iu DMA on rsp_iu mapping failure in init_request __nvme_fc_init_request() maps cmd_iu and then rsp_iu for DMA. If the rsp_iu mapping fails, the original code only recorded the error and fell through: it left the already-mapped cmd_iu unmapped and still marked the op as FCPOP_STATE_IDLE before returning. Since blk-mq does not call .exit_request() when .init_request() fails, the cmd_iu mapping is leaked for every op whose rsp_iu mapping fails. Jump to an error path on rsp_iu mapping failure that unmaps cmd_iu and returns the error without marking the op idle, so it stays in the FCPOP_STATE_UNINIT state set by the initial memset().
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/18c5781ed8bc2f423c26ec93e47e2057cd76a783
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5e820d04c241c81a47e1940349018690e93d8167
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/acc173608ca7abe5dee8983086b44efd8b0dbc84
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bb0251991420c25e3ceeac40ea09250d79ed7ef0
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bd764baf82bb46e958a0bd0b481630dd71313055
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/be5eb47ee3fea338efae1a5b678d6bb5f0fcc931
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c0892cfb60a75e2c86ba8e2127b133f6549c12b3
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f49d0c3a8d56a7cda1628ae17341a4a42063563c
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/nvme/host/fc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "c0892cfb60a75e2c86ba8e2127b133f6549c12b3",
              "status": "affected",
              "version": "e399441de9115cd472b8ace6c517708273ca7997",
              "versionType": "git"
            },
            {
              "lessThan": "5e820d04c241c81a47e1940349018690e93d8167",
              "status": "affected",
              "version": "e399441de9115cd472b8ace6c517708273ca7997",
              "versionType": "git"
            },
            {
              "lessThan": "bb0251991420c25e3ceeac40ea09250d79ed7ef0",
              "status": "affected",
              "version": "e399441de9115cd472b8ace6c517708273ca7997",
              "versionType": "git"
            },
            {
              "lessThan": "acc173608ca7abe5dee8983086b44efd8b0dbc84",
              "status": "affected",
              "version": "e399441de9115cd472b8ace6c517708273ca7997",
              "versionType": "git"
            },
            {
              "lessThan": "18c5781ed8bc2f423c26ec93e47e2057cd76a783",
              "status": "affected",
              "version": "e399441de9115cd472b8ace6c517708273ca7997",
              "versionType": "git"
            },
            {
              "lessThan": "bd764baf82bb46e958a0bd0b481630dd71313055",
              "status": "affected",
              "version": "e399441de9115cd472b8ace6c517708273ca7997",
              "versionType": "git"
            },
            {
              "lessThan": "be5eb47ee3fea338efae1a5b678d6bb5f0fcc931",
              "status": "affected",
              "version": "e399441de9115cd472b8ace6c517708273ca7997",
              "versionType": "git"
            },
            {
              "lessThan": "f49d0c3a8d56a7cda1628ae17341a4a42063563c",
              "status": "affected",
              "version": "e399441de9115cd472b8ace6c517708273ca7997",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/nvme/host/fc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.10"
            },
            {
              "lessThan": "4.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.270",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.221",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.188",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.110",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.52",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvme-fc: unmap cmd_iu DMA on rsp_iu mapping failure in init_request\n\n__nvme_fc_init_request() maps cmd_iu and then rsp_iu for DMA. If the\nrsp_iu mapping fails, the original code only recorded the error and fell\nthrough: it left the already-mapped cmd_iu unmapped and still marked the\nop as FCPOP_STATE_IDLE before returning. Since blk-mq does not call\n.exit_request() when .init_request() fails, the cmd_iu mapping is leaked\nfor every op whose rsp_iu mapping fails.\n\nJump to an error path on rsp_iu mapping failure that unmaps cmd_iu and\nreturns the error without marking the op idle, so it stays in the\nFCPOP_STATE_UNINIT state set by the initial memset()."
    }
  ],
  "id": "CVE-2026-90411",
  "lastModified": "2026-09-17T17:17:41.077",
  "metrics": {},
  "published": "2026-09-17T17:17:41.077",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/18c5781ed8bc2f423c26ec93e47e2057cd76a783"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/5e820d04c241c81a47e1940349018690e93d8167"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/acc173608ca7abe5dee8983086b44efd8b0dbc84"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/bb0251991420c25e3ceeac40ea09250d79ed7ef0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/bd764baf82bb46e958a0bd0b481630dd71313055"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/be5eb47ee3fea338efae1a5b678d6bb5f0fcc931"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c0892cfb60a75e2c86ba8e2127b133f6549c12b3"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f49d0c3a8d56a7cda1628ae17341a4a42063563c"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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