{"id":"CVE-2026-90202","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: mpt3sas: Avoid freeing unallocated PCIe SGL buffers\n\n_base_release_memory_pools() unconditionally frees every\nioc->pcie_sg_lookup[] entry, including ones the setu…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: mpt3sas: Avoid freeing unallocated PCIe SGL buffers\n\n_base_release_memory_pools() unconditionally frees every\nioc->pcie_sg_lookup[] entry, including ones the setu…","severity":"medium","vendor":"Linux","product":"Linux","affected":["Linux >= dbec4c9040edc15442c3ebdb65408aa9d3b82c24 < 3361709fb6f6568b157c6f24ed21a4a5d86d73db","Linux >= dbec4c9040edc15442c3ebdb65408aa9d3b82c24 < 240b582b6372bebb1245d911add9954b7dd6c02d","Linux >= dbec4c9040edc15442c3ebdb65408aa9d3b82c24 < a61181f9ee30a98d2350c1bff32954a7521f9a23","Linux >= dbec4c9040edc15442c3ebdb65408aa9d3b82c24 < afedf35df054bd713e9e13771aa0a056932c5c67","Linux >= dbec4c9040edc15442c3ebdb65408aa9d3b82c24 < bc3398db3b64729b4a7907af317daad04795ad40","Linux >= dbec4c9040edc15442c3ebdb65408aa9d3b82c24 < 2dbdd025b228110ccbfbab95fe16e098313a14af","Linux >= dbec4c9040edc15442c3ebdb65408aa9d3b82c24 < e2cd23443d3616ea0876f27762b17e2ec67d896c","Linux >= dbec4c9040edc15442c3ebdb65408aa9d3b82c24 < b9f679dfe629004b593f018df33b330d799bcee4","Linux 4.16"],"published":"2026-09-17","updated":"2026-09-17","sourceUpdated":"2026-09-17T17:17:15.180","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-90202","references":[{"url":"https://git.kernel.org/stable/c/240b582b6372bebb1245d911add9954b7dd6c02d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/2dbdd025b228110ccbfbab95fe16e098313a14af","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/3361709fb6f6568b157c6f24ed21a4a5d86d73db","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a61181f9ee30a98d2350c1bff32954a7521f9a23","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/afedf35df054bd713e9e13771aa0a056932c5c67","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b9f679dfe629004b593f018df33b330d799bcee4","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/bc3398db3b64729b4a7907af317daad04795ad40","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e2cd23443d3616ea0876f27762b17e2ec67d896c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90202.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-90202"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2536763"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-90202"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90202"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-90202.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ingestedAt":"2026-09-17T16:21:47.860Z","epss":0.00216,"epssPercentile":0.1201,"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-476"],"slug":"CVE-2026-90202","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nscsi: mpt3sas: Avoid freeing unallocated PCIe SGL buffers\n\n_base_release_memory_pools() unconditionally frees every\nioc->pcie_sg_lookup[] entry, including ones the setup loop never\nallocated after a partial failure, causing a \"bad dma\" warning on debug\nkernels or a NULL pointer dereference otherwise.\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 6, 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 6, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, … · updated 2026-10-06 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90202.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":217248,"id":"CVE-2026-90202","ts":1791360809752,"field":"cvss","old":null,"new":"5.5"},{"seq":217247,"id":"CVE-2026-90202","ts":1791360809752,"field":"severity","old":"none","new":"medium"}]}