{"api_version":"1","generated_at":"2026-10-23T04:27:58+00:00","cve":"CVE-2026-98199","urls":{"html":"https://cve.report/CVE-2026-98199","api":"https://cve.report/api/cve/CVE-2026-98199.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-98199","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-98199"},"summary":{"title":"hwmon: (pmbus/core) increase number of phases and add new mask","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (pmbus/core) increase number of phases and add new mask\n\nIncrease the number of phases to 16 as a new upcoming device supports\nsuch a number.\n\nWhile at it, add a new mask for controlling the source of the output\nvoltage.\n\nNote (groeck):\n\nThis patch was meant to prepare for support of MAX20826 and compatible\ndevices, which support more than 10 phases per page. However, Sashiko\nreports that the mp2975 driver already supports up to 14 phases, and the\nmp2856 driver supports up to 12 phases. This already has the potential for\nout-of-bounds writes when probing the affected chips, making this patch a\nbug fix.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-10-06 09:18:05","updated_at":"2026-10-19 10:18:20"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/b32607710a20ad983f9fe4a3051892584c0641a4","name":"https://git.kernel.org/stable/c/b32607710a20ad983f9fe4a3051892584c0641a4","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/06bd6794b5fd2163880ac3bfe973d4cc61f359f3","name":"https://git.kernel.org/stable/c/06bd6794b5fd2163880ac3bfe973d4cc61f359f3","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b49f100a15b8876deccf8c59f41af92b8e25fd74","name":"https://git.kernel.org/stable/c/b49f100a15b8876deccf8c59f41af92b8e25fd74","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/9558fc1e042ac6b12dd63c37d2c51be4ec86d402","name":"https://git.kernel.org/stable/c/9558fc1e042ac6b12dd63c37d2c51be4ec86d402","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/1ec644c94466834f8cb6b7ba12636fd047bdfdda","name":"https://git.kernel.org/stable/c/1ec644c94466834f8cb6b7ba12636fd047bdfdda","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/272006a52cbd9c8342cead4d3eb9221ebbe8b985","name":"https://git.kernel.org/stable/c/272006a52cbd9c8342cead4d3eb9221ebbe8b985","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/66368f682a53f3a3842e20eebb571a59809c52c0","name":"https://git.kernel.org/stable/c/66368f682a53f3a3842e20eebb571a59809c52c0","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98199","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98199","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2c6fcbb211494f1ff6ef384776944b9e04f4c14c 272006a52cbd9c8342cead4d3eb9221ebbe8b985 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2c6fcbb211494f1ff6ef384776944b9e04f4c14c b32607710a20ad983f9fe4a3051892584c0641a4 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2c6fcbb211494f1ff6ef384776944b9e04f4c14c 66368f682a53f3a3842e20eebb571a59809c52c0 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2c6fcbb211494f1ff6ef384776944b9e04f4c14c 1ec644c94466834f8cb6b7ba12636fd047bdfdda git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.112 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.54 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.8 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"98199","cve":"CVE-2026-98199","epss":"0.002150000","percentile":"0.107990000","score_date":"2026-10-06","updated_at":"2026-10-07 00:14:55"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/hwmon/pmbus/pmbus.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"272006a52cbd9c8342cead4d3eb9221ebbe8b985","status":"affected","version":"2c6fcbb211494f1ff6ef384776944b9e04f4c14c","versionType":"git"},{"lessThan":"b32607710a20ad983f9fe4a3051892584c0641a4","status":"affected","version":"2c6fcbb211494f1ff6ef384776944b9e04f4c14c","versionType":"git"},{"lessThan":"66368f682a53f3a3842e20eebb571a59809c52c0","status":"affected","version":"2c6fcbb211494f1ff6ef384776944b9e04f4c14c","versionType":"git"},{"lessThan":"1ec644c94466834f8cb6b7ba12636fd047bdfdda","status":"affected","version":"2c6fcbb211494f1ff6ef384776944b9e04f4c14c","versionType":"git"},{"lessThan":"9558fc1e042ac6b12dd63c37d2c51be4ec86d402","status":"affected","version":"2c6fcbb211494f1ff6ef384776944b9e04f4c14c","versionType":"git"},{"lessThan":"b49f100a15b8876deccf8c59f41af92b8e25fd74","status":"affected","version":"2c6fcbb211494f1ff6ef384776944b9e04f4c14c","versionType":"git"},{"lessThan":"06bd6794b5fd2163880ac3bfe973d4cc61f359f3","status":"affected","version":"2c6fcbb211494f1ff6ef384776944b9e04f4c14c","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/hwmon/pmbus/pmbus.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.10"},{"lessThan":"5.10","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.222","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.189","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.158","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.112","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.54","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.8","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.222","versionStartIncluding":"5.10","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.189","versionStartIncluding":"5.10","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.158","versionStartIncluding":"5.10","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.112","versionStartIncluding":"5.10","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.54","versionStartIncluding":"5.10","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.8","versionStartIncluding":"5.10","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3","versionStartIncluding":"5.10","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (pmbus/core) increase number of phases and add new mask\n\nIncrease the number of phases to 16 as a new upcoming device supports\nsuch a number.\n\nWhile at it, add a new mask for controlling the source of the output\nvoltage.\n\nNote (groeck):\n\nThis patch was meant to prepare for support of MAX20826 and compatible\ndevices, which support more than 10 phases per page. However, Sashiko\nreports that the mp2975 driver already supports up to 14 phases, and the\nmp2856 driver supports up to 12 phases. This already has the potential for\nout-of-bounds writes when probing the affected chips, making this patch a\nbug fix."}],"providerMetadata":{"dateUpdated":"2026-10-19T09:15:30.300Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/272006a52cbd9c8342cead4d3eb9221ebbe8b985"},{"url":"https://git.kernel.org/stable/c/b32607710a20ad983f9fe4a3051892584c0641a4"},{"url":"https://git.kernel.org/stable/c/66368f682a53f3a3842e20eebb571a59809c52c0"},{"url":"https://git.kernel.org/stable/c/1ec644c94466834f8cb6b7ba12636fd047bdfdda"},{"url":"https://git.kernel.org/stable/c/9558fc1e042ac6b12dd63c37d2c51be4ec86d402"},{"url":"https://git.kernel.org/stable/c/b49f100a15b8876deccf8c59f41af92b8e25fd74"},{"url":"https://git.kernel.org/stable/c/06bd6794b5fd2163880ac3bfe973d4cc61f359f3"}],"title":"hwmon: (pmbus/core) increase number of phases and add new mask","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-98199","datePublished":"2026-10-06T08:44:37.623Z","dateReserved":"2026-09-25T10:25:14.324Z","dateUpdated":"2026-10-19T09:15:30.300Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-06 09:18:05","lastModifiedDate":"2026-10-19 10:18:20","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"98199","Ordinal":"1","Title":"hwmon: (pmbus/core) increase number of phases and add new mask","CVE":"CVE-2026-98199","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"98199","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (pmbus/core) increase number of phases and add new mask\n\nIncrease the number of phases to 16 as a new upcoming device supports\nsuch a number.\n\nWhile at it, add a new mask for controlling the source of the output\nvoltage.\n\nNote (groeck):\n\nThis patch was meant to prepare for support of MAX20826 and compatible\ndevices, which support more than 10 phases per page. However, Sashiko\nreports that the mp2975 driver already supports up to 14 phases, and the\nmp2856 driver supports up to 12 phases. This already has the potential for\nout-of-bounds writes when probing the affected chips, making this patch a\nbug fix.","Type":"Description","Title":"hwmon: (pmbus/core) increase number of phases and add new mask"}]}}}