{"id":"CVE-2026-98004","revision":"b57d7c97261949f582a2db8ebb6c1df8","records":[{"revision":"b57d7c97261949f582a2db8ebb6c1df8","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-98004","aliases":[],"title":"iommu/riscv: Serialize command queue publishing","description":"In the Linux kernel, the following vulnerability has been resolved:\n\niommu/riscv: Serialize command queue publishing\n\nSerialize command queue publishing so software producer state advances only\nafter a command is written and the hardware tail is updated. Wait for\nhardware consumption outside the queue lock when the command queue is full\nso other CPUs are not blocked behind a long poll.","state":0,"publishedAt":"2026-09-25T10:23:31.134+00:00","modifiedAt":"2026-10-19T09:12:09.901+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/iommu/riscv/iommu.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"856c0cfe5c5f6a2cc8d995872eb67bff9c68c57c\",\n                            \"lessThan\": \"787405e9e7bdc53ea7e063fe7b855171b4bd0e91\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"856c0cfe5c5f6a2cc8d995872eb67bff9c68c57c\",\n                            \"lessThan\": \"6d4c12ab9ab8db87411c863a54e0e97f9197afde\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"856c0cfe5c5f6a2cc8d995872eb67bff9c68c57c\",\n                            \"lessThan\": \"ca58afa40946acd252a50fa4d4a86f15847a3d7d\",\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/iommu/riscv/iommu.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.13\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.13\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.57\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.7\",\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/787405e9e7bdc53ea7e063fe7b855171b4bd0e91","https://git.kernel.org/stable/c/6d4c12ab9ab8db87411c863a54e0e97f9197afde","https://git.kernel.org/stable/c/ca58afa40946acd252a50fa4d4a86f15847a3d7d"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98004","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-98004","identifiers":["CVE-2026-98004"]},"retained":false,"historicalAffected":[]}],"coverage":[]}