{"dataType":"CVE_RECORD","dataVersion":"5.2","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":"2026-05-11T19:06:00.714Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T19:06:00.714Z"},"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"}},"adp":[{"problemTypes":[{"descriptions":[{"type":"CWE","cweId":"CWE-190","lang":"en","description":"CWE-190 Integer Overflow or Wraparound"}]}],"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.5,"attackVector":"LOCAL","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2025-10-01T17:23:27.014195Z","id":"CVE-2022-49749","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2025-10-01T17:23:29.836Z"}}]}}