{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-89575", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-11T19:38:34.727Z", "datePublished": "2026-09-11T19:44:43.139Z", "dateUpdated": "2026-09-11T19:44:43.139Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-09-11T19:44:43.139Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndm raid1: reserve space for NUL-terminator in build_constructor_string()\n\nReserve space for the termination NUL after the maximum 20 decimal\ndigits of a long long value to avoid buffer overflow in sprintf()."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/md/dm-log-userspace-base.c"], "versions": [{"version": "f5db4af466e2dca0fe822019812d586ca910b00c", "lessThan": "0a3657ebd6b517b60cdc5123894047616974e25b", "status": "affected", "versionType": "git"}, {"version": "f5db4af466e2dca0fe822019812d586ca910b00c", "lessThan": "644140527ae494cedf3b5c0ecd16287deaea7a66", "status": "affected", "versionType": "git"}, {"version": "f5db4af466e2dca0fe822019812d586ca910b00c", "lessThan": "f79b53ca3a68a46c6fc3b30b148d1dfb1b33ea8b", "status": "affected", "versionType": "git"}, {"version": "f5db4af466e2dca0fe822019812d586ca910b00c", "lessThan": "73c37fe54cd056d07461b142ab0b8b81e1ef6ad8", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/md/dm-log-userspace-base.c"], "versions": [{"version": "2.6.31", "status": "affected"}, {"version": "0", "lessThan": "2.6.31", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.109", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.50", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.4", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3-rc1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.31", "versionEndExcluding": "6.12.109"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.31", "versionEndExcluding": "6.18.50"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.31", "versionEndExcluding": "7.2.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.31", "versionEndExcluding": "7.3-rc1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/0a3657ebd6b517b60cdc5123894047616974e25b"}, {"url": "https://git.kernel.org/stable/c/644140527ae494cedf3b5c0ecd16287deaea7a66"}, {"url": "https://git.kernel.org/stable/c/f79b53ca3a68a46c6fc3b30b148d1dfb1b33ea8b"}, {"url": "https://git.kernel.org/stable/c/73c37fe54cd056d07461b142ab0b8b81e1ef6ad8"}], "title": "dm raid1: reserve space for NUL-terminator in build_constructor_string()", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/md/dm-log-userspace-base.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "0a3657ebd6b517b60cdc5123894047616974e25b", "status": "affected", "version": "f5db4af466e2dca0fe822019812d586ca910b00c", "versionType": "git"}, {"lessThan": "644140527ae494cedf3b5c0ecd16287deaea7a66", "status": "affected", "version": "f5db4af466e2dca0fe822019812d586ca910b00c", "versionType": "git"}, {"lessThan": "f79b53ca3a68a46c6fc3b30b148d1dfb1b33ea8b", "status": "affected", "version": "f5db4af466e2dca0fe822019812d586ca910b00c", "versionType": "git"}, {"lessThan": "73c37fe54cd056d07461b142ab0b8b81e1ef6ad8", "status": "affected", "version": "f5db4af466e2dca0fe822019812d586ca910b00c", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/md/dm-log-userspace-base.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "2.6.31"}, {"lessThan": "2.6.31", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.109", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.50", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.4", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3-rc1", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndm raid1: reserve space for NUL-terminator in build_constructor_string()\n\nReserve space for the termination NUL after the maximum 20 decimal\ndigits of a long long value to avoid buffer overflow in sprintf()."}], "id": "CVE-2026-89575", "lastModified": "2026-09-11T20:19:41.643", "metrics": {}, "published": "2026-09-11T20:19:41.643", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0a3657ebd6b517b60cdc5123894047616974e25b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/644140527ae494cedf3b5c0ecd16287deaea7a66"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/73c37fe54cd056d07461b142ab0b8b81e1ef6ad8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f79b53ca3a68a46c6fc3b30b148d1dfb1b33ea8b"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: Linux kernel: Buffer overflow in dm-raid1 due to missing NUL-terminator", "id": "2532259", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2532259"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.7", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:H", "status": "draft"}, "cwe": "CWE-170", "details": ["A flaw was found in the Linux kernel's device mapper (dm-raid1) component. This vulnerability occurs in the `build_constructor_string()` function, where insufficient space is reserved for a NUL-terminator when formatting a string with `sprintf()`. This oversight can lead to a buffer overflow, potentially allowing an attacker to cause a denial of service or execute arbitrary code."], "name": "CVE-2026-89575", "public_date": "2026-09-11T19:44:43Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-89575\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-89575\nhttps://git.kernel.org/stable/c/0a3657ebd6b517b60cdc5123894047616974e25b\nhttps://git.kernel.org/stable/c/644140527ae494cedf3b5c0ecd16287deaea7a66\nhttps://git.kernel.org/stable/c/73c37fe54cd056d07461b142ab0b8b81e1ef6ad8\nhttps://git.kernel.org/stable/c/f79b53ca3a68a46c6fc3b30b148d1dfb1b33ea8b"], "threat_severity": "Moderate"}

{"created": "2026-09-12T04:15:05.729718+00:00", "updated": "2026-09-12T13:00:12.642262+00:00", "vendors": []}