{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2022-49749", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-03-27T16:39:17.988Z", "datePublished": "2025-03-27T16:42:58.426Z", "dateUpdated": "2025-05-04T08:44:33.757Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T08:44:33.757Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: designware: use casting of u64 in clock multiplication to avoid overflow\n\nIn functions i2c_dw_scl_lcnt() and i2c_dw_scl_hcnt() may have overflow\nby depending on the values of the given parameters including the ic_clk.\nFor example in our use case where ic_clk is larger than one million,\nmultiplication of ic_clk * 4700 will result in 32 bit overflow.\n\nAdd cast of u64 to the calculation to avoid multiplication overflow, and\nuse the corresponding define for divide."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/i2c/busses/i2c-designware-common.c"], "versions": [{"version": "2373f6b9744d5373b886f3ce1a985193cca0a356", "lessThan": "ed173f77fd28a3e4fffc13b3f28687b9eba61157", "status": "affected", "versionType": "git"}, {"version": "2373f6b9744d5373b886f3ce1a985193cca0a356", "lessThan": "2f29d780bd691d20e89e5b35d5e6568607115e94", "status": "affected", "versionType": "git"}, {"version": "2373f6b9744d5373b886f3ce1a985193cca0a356", "lessThan": "9f36aae9e80e79b7a6d62227eaa96935166be9fe", "status": "affected", "versionType": "git"}, {"version": "2373f6b9744d5373b886f3ce1a985193cca0a356", "lessThan": "c8c37bc514514999e62a17e95160ed9ebf75ca8d", "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/i2c/busses/i2c-designware-common.c"], "versions": [{"version": "3.2", "status": "affected"}, {"version": "0", "lessThan": "3.2", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.166", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.91", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.9", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.2", "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": "3.2", "versionEndExcluding": "5.10.166"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2", "versionEndExcluding": "5.15.91"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2", "versionEndExcluding": "6.1.9"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2", "versionEndExcluding": "6.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/ed173f77fd28a3e4fffc13b3f28687b9eba61157"}, {"url": "https://git.kernel.org/stable/c/2f29d780bd691d20e89e5b35d5e6568607115e94"}, {"url": "https://git.kernel.org/stable/c/9f36aae9e80e79b7a6d62227eaa96935166be9fe"}, {"url": "https://git.kernel.org/stable/c/c8c37bc514514999e62a17e95160ed9ebf75ca8d"}], "title": "i2c: designware: use casting of u64 in clock multiplication to avoid overflow", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "A6E2C72E-F792-48C7-A39A-07D12CCA9732", "versionEndExcluding": "5.10.166", "versionStartIncluding": "3.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "91C2E92D-CC25-4FBD-8824-56A148119D7E", "versionEndExcluding": "5.15.91", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "ED5B6045-B1D2-4E03-B194-9005A351BCAE", "versionEndExcluding": "6.1.9", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:*", "matchCriteriaId": "FF501633-2F44-4913-A8EE-B021929F49F6", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.2:rc2:*:*:*:*:*:*", "matchCriteriaId": "2BDA597B-CAC1-4DF0-86F0-42E142C654E9", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.2:rc3:*:*:*:*:*:*", "matchCriteriaId": "725C78C9-12CE-406F-ABE8-0813A01D66E8", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.2:rc4:*:*:*:*:*:*", "matchCriteriaId": "A127C155-689C-4F67-B146-44A57F4BFD85", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.2:rc5:*:*:*:*:*:*", "matchCriteriaId": "D34127CC-68F5-4703-A5F6-5006F803E4AE", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: designware: use casting of u64 in clock multiplication to avoid overflow\n\nIn functions i2c_dw_scl_lcnt() and i2c_dw_scl_hcnt() may have overflow\nby depending on the values of the given parameters including the ic_clk.\nFor example in our use case where ic_clk is larger than one million,\nmultiplication of ic_clk * 4700 will result in 32 bit overflow.\n\nAdd cast of u64 to the calculation to avoid multiplication overflow, and\nuse the corresponding define for divide."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: i2c: designware: usar la conversi\u00f3n de u64 en la multiplicaci\u00f3n de reloj para evitar el desbordamiento. Las funciones i2c_dw_scl_lcnt() e i2c_dw_scl_hcnt() pueden experimentar un desbordamiento al depender de los valores de los par\u00e1metros dados, incluido ic_clk. Por ejemplo, en nuestro caso pr\u00e1ctico, donde ic_clk es mayor que un mill\u00f3n, la multiplicaci\u00f3n de ic_clk * 4700 resultar\u00e1 en un desbordamiento de 32 bits. A\u00f1ada la conversi\u00f3n de u64 al c\u00e1lculo para evitar el desbordamiento de la multiplicaci\u00f3n y utilice la definici\u00f3n correspondiente para la divisi\u00f3n."}], "id": "CVE-2022-49749", "lastModified": "2025-04-14T20:27:38.340", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "[email protected]", "type": "Primary"}]}, "published": "2025-03-27T17:15:39.730", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2f29d780bd691d20e89e5b35d5e6568607115e94"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/9f36aae9e80e79b7a6d62227eaa96935166be9fe"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c8c37bc514514999e62a17e95160ed9ebf75ca8d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ed173f77fd28a3e4fffc13b3f28687b9eba61157"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-190"}], "source": "[email protected]", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: i2c: designware: use casting of u64 in clock multiplication to avoid overflow", "id": "2355462", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2355462"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-190", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ni2c: designware: use casting of u64 in clock multiplication to avoid overflow\nIn functions i2c_dw_scl_lcnt() and i2c_dw_scl_hcnt() may have overflow\nby depending on the values of the given parameters including the ic_clk.\nFor example in our use case where ic_clk is larger than one million,\nmultiplication of ic_clk * 4700 will result in 32 bit overflow.\nAdd cast of u64 to the calculation to avoid multiplication overflow, and\nuse the corresponding define for divide."], "name": "CVE-2022-49749", "package_state": [{"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": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-03-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49749\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49749\nhttps://lore.kernel.org/linux-cve-announce/2025032759-CVE-2022-49749-ed85@gregkh/T"], "threat_severity": "Low"}