CVE-2026-46293

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-46293", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.110Z", "datePublished": "2026-06-08T15:46:20.288Z", "dateUpdated": "2026-06-14T18:07:01.688Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-14T18:07:01.688Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nclk: microchip: mpfs-ccc: fix out of bounds access during output registration\n\nUBSAN reported an out of bounds access during registration of the last\ntwo outputs. This out of bounds access occurs because space is only\nallocated in the hws array for two PLLs and the four output dividers\nthat each has, but the defined IDs contain two DLLS and their two\noutputs each, which are not supported by the driver. The ID order is\nPLLs -> DLLs -> PLL outputs -> DLL outputs. Decrement the PLL output IDs\nby two while adding them to the array to avoid the problem."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/clk/microchip/clk-mpfs-ccc.c"], "versions": [{"version": "d39fb172760e426e0628f16b785c85e16d17bd5e", "lessThan": "9ed9b580a814773482c0a4f1be045636e68cc109", "status": "affected", "versionType": "git"}, {"version": "d39fb172760e426e0628f16b785c85e16d17bd5e", "lessThan": "47bc7a03449c39805bc2665d3e57c73195d5bcf8", "status": "affected", "versionType": "git"}, {"version": "d39fb172760e426e0628f16b785c85e16d17bd5e", "lessThan": "dbfcb09656cb30439577325c9dea2250203c2e3c", "status": "affected", "versionType": "git"}, {"version": "d39fb172760e426e0628f16b785c85e16d17bd5e", "lessThan": "a0780aeea166a7cf4706c45af4cadbb2a43a1fc9", "status": "affected", "versionType": "git"}, {"version": "d39fb172760e426e0628f16b785c85e16d17bd5e", "lessThan": "f24efd415455b98a1f1cfc6071fe6fde71986706", "status": "affected", "versionType": "git"}, {"version": "d39fb172760e426e0628f16b785c85e16d17bd5e", "lessThan": "2f7ae8ab6aa73daaf080d5332110357c29df9c36", "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/clk/microchip/clk-mpfs-ccc.c"], "versions": [{"version": "6.1", "status": "affected"}, {"version": "0", "lessThan": "6.1", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.175", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.140", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.88", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.30", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.7", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "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": "6.1", "versionEndExcluding": "6.1.175"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1", "versionEndExcluding": "6.6.140"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1", "versionEndExcluding": "6.12.88"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1", "versionEndExcluding": "6.18.30"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1", "versionEndExcluding": "7.0.7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/9ed9b580a814773482c0a4f1be045636e68cc109"}, {"url": "https://git.kernel.org/stable/c/47bc7a03449c39805bc2665d3e57c73195d5bcf8"}, {"url": "https://git.kernel.org/stable/c/dbfcb09656cb30439577325c9dea2250203c2e3c"}, {"url": "https://git.kernel.org/stable/c/a0780aeea166a7cf4706c45af4cadbb2a43a1fc9"}, {"url": "https://git.kernel.org/stable/c/f24efd415455b98a1f1cfc6071fe6fde71986706"}, {"url": "https://git.kernel.org/stable/c/2f7ae8ab6aa73daaf080d5332110357c29df9c36"}], "title": "clk: microchip: mpfs-ccc: fix out of bounds access during output registration", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/clk/microchip/clk-mpfs-ccc.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "9ed9b580a814773482c0a4f1be045636e68cc109", "status": "affected", "version": "d39fb172760e426e0628f16b785c85e16d17bd5e", "versionType": "git"}, {"lessThan": "47bc7a03449c39805bc2665d3e57c73195d5bcf8", "status": "affected", "version": "d39fb172760e426e0628f16b785c85e16d17bd5e", "versionType": "git"}, {"lessThan": "dbfcb09656cb30439577325c9dea2250203c2e3c", "status": "affected", "version": "d39fb172760e426e0628f16b785c85e16d17bd5e", "versionType": "git"}, {"lessThan": "a0780aeea166a7cf4706c45af4cadbb2a43a1fc9", "status": "affected", "version": "d39fb172760e426e0628f16b785c85e16d17bd5e", "versionType": "git"}, {"lessThan": "f24efd415455b98a1f1cfc6071fe6fde71986706", "status": "affected", "version": "d39fb172760e426e0628f16b785c85e16d17bd5e", "versionType": "git"}, {"lessThan": "2f7ae8ab6aa73daaf080d5332110357c29df9c36", "status": "affected", "version": "d39fb172760e426e0628f16b785c85e16d17bd5e", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/clk/microchip/clk-mpfs-ccc.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.1"}, {"lessThan": "6.1", "status": "unaffected", "version": "0", "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", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "A4CF44D2-E504-42EA-A313-4974CFE03BAA", "versionEndExcluding": "6.1.175", "versionStartIncluding": "6.1", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "A1A92866-F406-43B5-B2D1-CFC274753E9D", "versionEndExcluding": "6.6.140", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "5AFBE0EC-CCDF-4207-AE92-ABF958125CA4", "versionEndExcluding": "6.12.88", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "BF39AE08-AE6D-4410-8FBE-76F6BF5BF55B", "versionEndExcluding": "6.18.30", "versionStartIncluding": "6.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "D0893CA7-9AE6-4DFE-AC75-48967D73AD8E", "versionEndExcluding": "7.0.7", "versionStartIncluding": "6.19", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nclk: microchip: mpfs-ccc: fix out of bounds access during output registration\n\nUBSAN reported an out of bounds access during registration of the last\ntwo outputs. This out of bounds access occurs because space is only\nallocated in the hws array for two PLLs and the four output dividers\nthat each has, but the defined IDs contain two DLLS and their two\noutputs each, which are not supported by the driver. The ID order is\nPLLs -> DLLs -> PLL outputs -> DLL outputs. Decrement the PLL output IDs\nby two while adding them to the array to avoid the problem."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nclk: microchip: mpfs-ccc: corregir el acceso fuera de l\u00edmites durante el registro de salida\n\nUBSAN inform\u00f3 un acceso fuera de l\u00edmites durante el registro de las dos \u00faltimas salidas. Este acceso fuera de l\u00edmites ocurre porque solo se asigna espacio en el array hws para dos PLLs y los cuatro divisores de salida que cada uno tiene, pero los IDs definidos contienen dos DLLS y sus dos salidas cada uno, que no son soportados por el controlador. El orden de los IDs es PLLs -> DLLs -> salidas de PLL -> salidas de DLL. Decrementar los IDs de salida de PLL en dos mientras se a\u00f1aden al array para evitar el problema."}], "id": "CVE-2026-46293", "lastModified": "2026-07-23T08:10:00.137", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2026-06-08T17:16:47.630", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2f7ae8ab6aa73daaf080d5332110357c29df9c36"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/47bc7a03449c39805bc2665d3e57c73195d5bcf8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/9ed9b580a814773482c0a4f1be045636e68cc109"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a0780aeea166a7cf4706c45af4cadbb2a43a1fc9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/dbfcb09656cb30439577325c9dea2250203c2e3c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f24efd415455b98a1f1cfc6071fe6fde71986706"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: clk: microchip: mpfs-ccc: fix out of bounds access during output registration", "id": "2486474", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2486474"}, "csaw": false, "cwe": "CWE-131", "details": ["A flaw was found in the Linux kernel's clock driver for Microchip PolarFire SoC (MPFS) systems. This vulnerability involves an out-of-bounds memory access that occurs during the registration of clock outputs. The issue stems from incorrect memory allocation within the driver, which can lead to system instability or a denial of service (DoS) condition."], "name": "CVE-2026-46293", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-06-08T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-46293\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-46293\nhttps://lore.kernel.org/linux-cve-announce/2026060857-CVE-2026-46293-b59c@gregkh/T"]}

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