{"id":"CVE-2026-90411","title":"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","summary":"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 orig…","severity":"medium","vendor":"Linux","product":"Linux","affected":["Linux >= e399441de9115cd472b8ace6c517708273ca7997 < c0892cfb60a75e2c86ba8e2127b133f6549c12b3","Linux >= e399441de9115cd472b8ace6c517708273ca7997 < 5e820d04c241c81a47e1940349018690e93d8167","Linux >= e399441de9115cd472b8ace6c517708273ca7997 < bb0251991420c25e3ceeac40ea09250d79ed7ef0","Linux >= e399441de9115cd472b8ace6c517708273ca7997 < acc173608ca7abe5dee8983086b44efd8b0dbc84","Linux >= e399441de9115cd472b8ace6c517708273ca7997 < 18c5781ed8bc2f423c26ec93e47e2057cd76a783","Linux >= e399441de9115cd472b8ace6c517708273ca7997 < bd764baf82bb46e958a0bd0b481630dd71313055","Linux >= e399441de9115cd472b8ace6c517708273ca7997 < be5eb47ee3fea338efae1a5b678d6bb5f0fcc931","Linux >= e399441de9115cd472b8ace6c517708273ca7997 < f49d0c3a8d56a7cda1628ae17341a4a42063563c","Linux 4.10"],"published":"2026-09-17","updated":"2026-09-17","sourceUpdated":"2026-09-17T17:17:41.077","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-90411","references":[{"url":"https://git.kernel.org/stable/c/18c5781ed8bc2f423c26ec93e47e2057cd76a783","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/5e820d04c241c81a47e1940349018690e93d8167","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/acc173608ca7abe5dee8983086b44efd8b0dbc84","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/bb0251991420c25e3ceeac40ea09250d79ed7ef0","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/bd764baf82bb46e958a0bd0b481630dd71313055","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/be5eb47ee3fea338efae1a5b678d6bb5f0fcc931","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/c0892cfb60a75e2c86ba8e2127b133f6549c12b3","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f49d0c3a8d56a7cda1628ae17341a4a42063563c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90411.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-90411"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2536325"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-90411"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90411"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-90411.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ingestedAt":"2026-09-17T16:21:47.797Z","epss":0.00216,"epssPercentile":0.12,"cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cvssSource":"vendor","cwe":["CWE-772"],"slug":"CVE-2026-90411","body":"## Overview\n\nIn 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().\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Low · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, … · updated 2026-10-05 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90411.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":216306,"id":"CVE-2026-90411","ts":1791274069708,"field":"cvss","old":null,"new":"5.5"},{"seq":216305,"id":"CVE-2026-90411","ts":1791274069708,"field":"severity","old":"none","new":"medium"}]}