{"id":"CVE-2026-98161","revision":"6279ee57d6bc48f5bd2922d045944dba","records":[{"revision":"6279ee57d6bc48f5bd2922d045944dba","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-98161","aliases":[],"title":"nvdimm: pmem: keep PREFLUSH before data writes","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnvdimm: pmem: keep PREFLUSH before data writes\n\npmem_submit_bio() records a REQ_PREFLUSH error, but continues to copy the\nbio data and can later overwrite the error with a successful REQ_FUA flush.\nThat lets data writes run after a failed preflush and can complete the bio\nsuccessfully despite the failed ordering barrier.\n\nRun the REQ_PREFLUSH flush synchronously before touching the bio data and\ncomplete the bio with the flush error if it fails. Keep asynchronous flush\nchaining for REQ_FUA. At that point, data copy has completed and the parent\nbio can wait for the chained flush bio.","state":0,"publishedAt":"2026-09-25T13:06:51.138+00:00","modifiedAt":"2026-10-21T12:54:44.996+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/nvdimm/pmem.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"c5d4355d10d414a96ca870b731756b89d068d57a\",\n                            \"lessThan\": \"22d1f4dcdc9c6d0295c6db0c8933126098b14e05\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c5d4355d10d414a96ca870b731756b89d068d57a\",\n                            \"lessThan\": \"d34c30bc994328d9cf6749b2e9a32aabd08fd076\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c5d4355d10d414a96ca870b731756b89d068d57a\",\n                            \"lessThan\": \"770a90c2127220f0fc194ce909ad4f0842e141cb\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c5d4355d10d414a96ca870b731756b89d068d57a\",\n                            \"lessThan\": \"72561ca1ab96f0f0f32737a6171641e05a318538\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c5d4355d10d414a96ca870b731756b89d068d57a\",\n                            \"lessThan\": \"c644a2f8fef5618fcf453c591177700fd07dd024\",\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/nvdimm/pmem.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5.3\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.3\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.160\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.112\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.52\",\n                            \"lessThanOrEqual\": \"6.18.*\",\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/22d1f4dcdc9c6d0295c6db0c8933126098b14e05","https://git.kernel.org/stable/c/d34c30bc994328d9cf6749b2e9a32aabd08fd076","https://git.kernel.org/stable/c/770a90c2127220f0fc194ce909ad4f0842e141cb","https://git.kernel.org/stable/c/72561ca1ab96f0f0f32737a6171641e05a318538","https://git.kernel.org/stable/c/c644a2f8fef5618fcf453c591177700fd07dd024"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98161","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-98161","identifiers":["CVE-2026-98161"]},"retained":false,"historicalAffected":[]}],"coverage":[]}