{"id":"CVE-2026-90271","revision":"0ac9852efa414f2eaa16276942e1fdb4","records":[{"revision":"0ac9852efa414f2eaa16276942e1fdb4","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-90271","aliases":[],"title":"arm_mpam: Fix a NULL pointer dereference on unbinding after an error interrupt","description":"In the Linux kernel, the following vulnerability has been resolved:\n\narm_mpam: Fix a NULL pointer dereference on unbinding after an error interrupt\n\nIf a user unbinds an MSC after mpam_disable() has been run in response\nto an error interrupt then a dereference of a NULL pointer occurs as\nmpam_disable() sets the drvdata to NULL. Add an early return to the driver\nremove callback to avoid this.","state":0,"publishedAt":"2026-09-17T16:08:05.304+00:00","modifiedAt":"2026-10-19T09:00:48.861+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/resctrl/mpam_devices.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"f04046f2577a5c76167333ca99d3903ee5331ba0\",\n                            \"lessThan\": \"a29044c9c83513c7463de2adb84c169685562ad2\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f04046f2577a5c76167333ca99d3903ee5331ba0\",\n                            \"lessThan\": \"fc996c39689bb15aa80e5366809434f7258fb703\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/resctrl/mpam_devices.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.19\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.19\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.6\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/a29044c9c83513c7463de2adb84c169685562ad2","https://git.kernel.org/stable/c/fc996c39689bb15aa80e5366809434f7258fb703"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-90271","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-90271","identifiers":["CVE-2026-90271"]},"retained":false,"historicalAffected":[]}],"coverage":[]}