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nvme-fc: unmap cmd_iu DMA on rsp_iu mapping failure in init_request

Type: advisorySource: Official CVE List1 source record

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().

Announced Source revision 1
Original source ↗

CVE-2026-90411

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-2026-90411

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": "e399441de9115cd472b8ace6c517708273ca7997",
        "lessThan": "c0892cfb60a75e2c86ba8e2127b133f6549c12b3",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "e399441de9115cd472b8ace6c517708273ca7997",
        "lessThan": "5e820d04c241c81a47e1940349018690e93d8167",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "e399441de9115cd472b8ace6c517708273ca7997",
        "lessThan": "bb0251991420c25e3ceeac40ea09250d79ed7ef0",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "e399441de9115cd472b8ace6c517708273ca7997",
        "lessThan": "acc173608ca7abe5dee8983086b44efd8b0dbc84",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "e399441de9115cd472b8ace6c517708273ca7997",
        "lessThan": "18c5781ed8bc2f423c26ec93e47e2057cd76a783",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "e399441de9115cd472b8ace6c517708273ca7997",
        "lessThan": "bd764baf82bb46e958a0bd0b481630dd71313055",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "e399441de9115cd472b8ace6c517708273ca7997",
        "lessThan": "be5eb47ee3fea338efae1a5b678d6bb5f0fcc931",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "e399441de9115cd472b8ace6c517708273ca7997",
        "lessThan": "f49d0c3a8d56a7cda1628ae17341a4a42063563c",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/nvme/host/fc.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "4.10"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "4.10",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.270",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "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/host/fc.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-90411

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#36731 · Revision 1
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Publisher date
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