CVE-2026-90411 (GCVE-0-2026-90411)

Vulnerability from cvelistv5 – Published: 2026-09-17 16:09 – Updated: 2026-09-17 16:09
VLAI
Title
nvme-fc: unmap cmd_iu DMA on rsp_iu mapping failure in init_request
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().
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: e399441de9115cd472b8ace6c517708273ca7997 , < c0892cfb60a75e2c86ba8e2127b133f6549c12b3 (git)
Affected: e399441de9115cd472b8ace6c517708273ca7997 , < 5e820d04c241c81a47e1940349018690e93d8167 (git)
Affected: e399441de9115cd472b8ace6c517708273ca7997 , < bb0251991420c25e3ceeac40ea09250d79ed7ef0 (git)
Affected: e399441de9115cd472b8ace6c517708273ca7997 , < acc173608ca7abe5dee8983086b44efd8b0dbc84 (git)
Affected: e399441de9115cd472b8ace6c517708273ca7997 , < 18c5781ed8bc2f423c26ec93e47e2057cd76a783 (git)
Affected: e399441de9115cd472b8ace6c517708273ca7997 , < bd764baf82bb46e958a0bd0b481630dd71313055 (git)
Affected: e399441de9115cd472b8ace6c517708273ca7997 , < be5eb47ee3fea338efae1a5b678d6bb5f0fcc931 (git)
Affected: e399441de9115cd472b8ace6c517708273ca7997 , < f49d0c3a8d56a7cda1628ae17341a4a42063563c (git)
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Linux Linux Affected: 4.10
Unaffected: 0 , < 4.10 (semver)
Unaffected: 5.10.270 , ≤ 5.10.* (semver)
Unaffected: 5.15.221 , ≤ 5.15.* (semver)
Unaffected: 6.1.188 , ≤ 6.1.* (semver)
Unaffected: 6.6.157 , ≤ 6.6.* (semver)
Unaffected: 6.12.110 , ≤ 6.12.* (semver)
Unaffected: 6.18.52 , ≤ 6.18.* (semver)
Unaffected: 7.2.6 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)
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              "operator": "OR"
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      "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()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-17T16:09:38.077Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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    "dateReserved": "2026-09-11T19:38:34.812Z",
    "dateUpdated": "2026-09-17T16:09:38.077Z",
    "state": "PUBLISHED"
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      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "nvme-fc: unmap cmd_iu DMA on rsp_iu mapping failure in init_request",
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            "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",
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        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Received"
      }
    },
    "suse_vex": {
      "aggregate_severity": "low",
      "current_release_date": "2026-09-22T16:28:28Z",
      "cve": "CVE-2026-90411",
      "id": "CVE-2026-90411",
      "initial_release_date": "2026-09-18T00:16:39Z",
      "product_status:known_affected": "343",
      "product_status:known_not_affected": "4",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-90411",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-90411.json",
      "version": "4"
    }
  }
}



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