{"api_version":"1","generated_at":"2026-06-03T09:09:08+00:00","cve":"CVE-2026-46161","urls":{"html":"https://cve.report/CVE-2026-46161","api":"https://cve.report/api/cve/CVE-2026-46161.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-46161","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-46161"},"summary":{"title":"md/raid10: fix divide-by-zero in setup_geo() with zero far_copies","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmd/raid10: fix divide-by-zero in setup_geo() with zero far_copies\n\nsetup_geo() extracts near_copies (nc) and far_copies (fc) from the\nuser-provided layout parameter without checking for zero. When fc=0\nwith the \"improved\" far set layout selected, 'geo->far_set_size =\ndisks / fc' triggers a divide-by-zero.\n\nValidate nc and fc immediately after extraction, returning -1 if\neither is zero.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-28 10:16:31","updated_at":"2026-06-01 17:17:29"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/913d556e4bd1b56ed822815655b82c7bb54edc51","name":"https://git.kernel.org/stable/c/913d556e4bd1b56ed822815655b82c7bb54edc51","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0b43a70394ce492274e67463326be03e0a9897c5","name":"https://git.kernel.org/stable/c/0b43a70394ce492274e67463326be03e0a9897c5","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/9aa6d860b0930e2f72795665c42c44252a558a0c","name":"https://git.kernel.org/stable/c/9aa6d860b0930e2f72795665c42c44252a558a0c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/9d8e03b9a2b1e8ce5c198bf3a409a629f4d02cda","name":"https://git.kernel.org/stable/c/9d8e03b9a2b1e8ce5c198bf3a409a629f4d02cda","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/553e32adfa1a96b217651139a3f8c3b92b9984ac","name":"https://git.kernel.org/stable/c/553e32adfa1a96b217651139a3f8c3b92b9984ac","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4af2e558e6fdfb972c61350653fd55d1f62b60a5","name":"https://git.kernel.org/stable/c/4af2e558e6fdfb972c61350653fd55d1f62b60a5","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f9ddb621b2325eb69c95692958daf2bab4dea2c4","name":"https://git.kernel.org/stable/c/f9ddb621b2325eb69c95692958daf2bab4dea2c4","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/c716ab3034f84f8a6c226814247b8c5ac9f95da1","name":"https://git.kernel.org/stable/c/c716ab3034f84f8a6c226814247b8c5ac9f95da1","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-46161","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46161","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 475901aff15841fb0a81e7546517407779a9b061 0b43a70394ce492274e67463326be03e0a9897c5 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 475901aff15841fb0a81e7546517407779a9b061 c716ab3034f84f8a6c226814247b8c5ac9f95da1 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 475901aff15841fb0a81e7546517407779a9b061 553e32adfa1a96b217651139a3f8c3b92b9984ac git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 475901aff15841fb0a81e7546517407779a9b061 4af2e558e6fdfb972c61350653fd55d1f62b60a5 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 475901aff15841fb0a81e7546517407779a9b061 9d8e03b9a2b1e8ce5c198bf3a409a629f4d02cda git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 475901aff15841fb0a81e7546517407779a9b061 913d556e4bd1b56ed822815655b82c7bb54edc51 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 475901aff15841fb0a81e7546517407779a9b061 f9ddb621b2325eb69c95692958daf2bab4dea2c4 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 475901aff15841fb0a81e7546517407779a9b061 9aa6d860b0930e2f72795665c42c44252a558a0c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3.9","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 3.9 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.10.258 5.10.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.209 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.175 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.140 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.88 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.30 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.7 7.0.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1-rc2 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"46161","cve":"CVE-2026-46161","epss":"0.000240000","percentile":"0.072780000","score_date":"2026-06-02","updated_at":"2026-06-03 00:08:16"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/md/raid10.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"0b43a70394ce492274e67463326be03e0a9897c5","status":"affected","version":"475901aff15841fb0a81e7546517407779a9b061","versionType":"git"},{"lessThan":"c716ab3034f84f8a6c226814247b8c5ac9f95da1","status":"affected","version":"475901aff15841fb0a81e7546517407779a9b061","versionType":"git"},{"lessThan":"553e32adfa1a96b217651139a3f8c3b92b9984ac","status":"affected","version":"475901aff15841fb0a81e7546517407779a9b061","versionType":"git"},{"lessThan":"4af2e558e6fdfb972c61350653fd55d1f62b60a5","status":"affected","version":"475901aff15841fb0a81e7546517407779a9b061","versionType":"git"},{"lessThan":"9d8e03b9a2b1e8ce5c198bf3a409a629f4d02cda","status":"affected","version":"475901aff15841fb0a81e7546517407779a9b061","versionType":"git"},{"lessThan":"913d556e4bd1b56ed822815655b82c7bb54edc51","status":"affected","version":"475901aff15841fb0a81e7546517407779a9b061","versionType":"git"},{"lessThan":"f9ddb621b2325eb69c95692958daf2bab4dea2c4","status":"affected","version":"475901aff15841fb0a81e7546517407779a9b061","versionType":"git"},{"lessThan":"9aa6d860b0930e2f72795665c42c44252a558a0c","status":"affected","version":"475901aff15841fb0a81e7546517407779a9b061","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/md/raid10.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.9"},{"lessThan":"3.9","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.258","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.209","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.140","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.88","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.30","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.7","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1-rc2","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.258","versionStartIncluding":"3.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.209","versionStartIncluding":"3.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.175","versionStartIncluding":"3.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.140","versionStartIncluding":"3.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.88","versionStartIncluding":"3.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.30","versionStartIncluding":"3.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.7","versionStartIncluding":"3.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1-rc2","versionStartIncluding":"3.9","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmd/raid10: fix divide-by-zero in setup_geo() with zero far_copies\n\nsetup_geo() extracts near_copies (nc) and far_copies (fc) from the\nuser-provided layout parameter without checking for zero. When fc=0\nwith the \"improved\" far set layout selected, 'geo->far_set_size =\ndisks / fc' triggers a divide-by-zero.\n\nValidate nc and fc immediately after extraction, returning -1 if\neither is zero."}],"providerMetadata":{"dateUpdated":"2026-06-01T16:19:18.790Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/0b43a70394ce492274e67463326be03e0a9897c5"},{"url":"https://git.kernel.org/stable/c/c716ab3034f84f8a6c226814247b8c5ac9f95da1"},{"url":"https://git.kernel.org/stable/c/553e32adfa1a96b217651139a3f8c3b92b9984ac"},{"url":"https://git.kernel.org/stable/c/4af2e558e6fdfb972c61350653fd55d1f62b60a5"},{"url":"https://git.kernel.org/stable/c/9d8e03b9a2b1e8ce5c198bf3a409a629f4d02cda"},{"url":"https://git.kernel.org/stable/c/913d556e4bd1b56ed822815655b82c7bb54edc51"},{"url":"https://git.kernel.org/stable/c/f9ddb621b2325eb69c95692958daf2bab4dea2c4"},{"url":"https://git.kernel.org/stable/c/9aa6d860b0930e2f72795665c42c44252a558a0c"}],"title":"md/raid10: fix divide-by-zero in setup_geo() with zero far_copies","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-46161","datePublished":"2026-05-28T09:36:16.428Z","dateReserved":"2026-05-13T15:03:33.102Z","dateUpdated":"2026-06-01T16:19:18.790Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-28 10:16:31","lastModifiedDate":"2026-06-01 17:17:29","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"46161","Ordinal":"1","Title":"md/raid10: fix divide-by-zero in setup_geo() with zero far_copie","CVE":"CVE-2026-46161","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"46161","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nmd/raid10: fix divide-by-zero in setup_geo() with zero far_copies\n\nsetup_geo() extracts near_copies (nc) and far_copies (fc) from the\nuser-provided layout parameter without checking for zero. When fc=0\nwith the \"improved\" far set layout selected, 'geo->far_set_size =\ndisks / fc' triggers a divide-by-zero.\n\nValidate nc and fc immediately after extraction, returning -1 if\neither is zero.","Type":"Description","Title":"md/raid10: fix divide-by-zero in setup_geo() with zero far_copie"}]}}}