{"id":"CVE-2022-49189","state":"PUBLISHED","title":"clk: qcom: clk-rcg2: Update logic to calculate D value for RCG","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nclk: qcom: clk-rcg2: Update logic to calculate D value for RCG\n\nThe display pixel clock has a requirement on certain newer platforms to\nsupport M/N as (2/3) and the final D value calculated results in\nunderflow errors.\nAs the current implementation does not check for D value is within\nthe accepted range for a given M & N value. Update the logic to\ncalculate the final D value based on the range.","publishedAt":"2025-02-26T01:55:37.095Z","updatedAt":"2026-05-11T18:54:50.698Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"99cbd064b059f222c8839ba433a68b2d6ee33066","status":"affected","lessThan":"52592f9afbfe01bce8f8953e4f19cbe3bcbdbd3a","versionType":"git"},{"version":"99cbd064b059f222c8839ba433a68b2d6ee33066","status":"affected","lessThan":"334720f418f57b1d969dad2117b21f9388cb9395","versionType":"git"},{"version":"99cbd064b059f222c8839ba433a68b2d6ee33066","status":"affected","lessThan":"34dca60982e93e69ae442aa2d36ce61c9a3bb563","versionType":"git"},{"version":"99cbd064b059f222c8839ba433a68b2d6ee33066","status":"affected","lessThan":"96888f0dcf351e758b9df57e015a48427ca709c1","versionType":"git"},{"version":"99cbd064b059f222c8839ba433a68b2d6ee33066","status":"affected","lessThan":"a4e2e31971354790b0d1fa3e783452a9d135fcff","versionType":"git"},{"version":"99cbd064b059f222c8839ba433a68b2d6ee33066","status":"affected","lessThan":"58922910add18583d5273c2edcdb9fd7bf4eca02","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/clk/qcom/clk-rcg2.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.16","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.16","versionType":"semver"},{"version":"5.4.189","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.110","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.33","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"5.16.19","status":"unaffected","lessThanOrEqual":"5.16.*","versionType":"semver"},{"version":"5.17.2","status":"unaffected","lessThanOrEqual":"5.17.*","versionType":"semver"},{"version":"5.18","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/clk/qcom/clk-rcg2.c"]}],"references":["https://git.kernel.org/stable/c/52592f9afbfe01bce8f8953e4f19cbe3bcbdbd3a","https://git.kernel.org/stable/c/334720f418f57b1d969dad2117b21f9388cb9395","https://git.kernel.org/stable/c/34dca60982e93e69ae442aa2d36ce61c9a3bb563","https://git.kernel.org/stable/c/96888f0dcf351e758b9df57e015a48427ca709c1","https://git.kernel.org/stable/c/a4e2e31971354790b0d1fa3e783452a9d135fcff","https://git.kernel.org/stable/c/58922910add18583d5273c2edcdb9fd7bf4eca02"],"weaknesses":[],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/49xxx/CVE-2022-49189.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-49189","state":"PUBLISHED","datePublished":"2025-02-26T01:55:37.095Z","dateUpdated":"2026-05-11T18:54:50.698Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-02-26T01:49:39.286Z"},"containers":{"cna":{"title":"clk: qcom: clk-rcg2: Update logic to calculate D value for RCG","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nclk: qcom: clk-rcg2: Update logic to calculate D value for RCG\n\nThe display pixel clock has a requirement on certain newer platforms to\nsupport M/N as (2/3) and the final D value calculated results in\nunderflow errors.\nAs the current implementation does not check for D value is within\nthe accepted range for a given M & N value. Update the logic to\ncalculate the final D value based on the range."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"99cbd064b059f222c8839ba433a68b2d6ee33066","status":"affected","lessThan":"52592f9afbfe01bce8f8953e4f19cbe3bcbdbd3a","versionType":"git"},{"version":"99cbd064b059f222c8839ba433a68b2d6ee33066","status":"affected","lessThan":"334720f418f57b1d969dad2117b21f9388cb9395","versionType":"git"},{"version":"99cbd064b059f222c8839ba433a68b2d6ee33066","status":"affected","lessThan":"34dca60982e93e69ae442aa2d36ce61c9a3bb563","versionType":"git"},{"version":"99cbd064b059f222c8839ba433a68b2d6ee33066","status":"affected","lessThan":"96888f0dcf351e758b9df57e015a48427ca709c1","versionType":"git"},{"version":"99cbd064b059f222c8839ba433a68b2d6ee33066","status":"affected","lessThan":"a4e2e31971354790b0d1fa3e783452a9d135fcff","versionType":"git"},{"version":"99cbd064b059f222c8839ba433a68b2d6ee33066","status":"affected","lessThan":"58922910add18583d5273c2edcdb9fd7bf4eca02","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/clk/qcom/clk-rcg2.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.16","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.16","versionType":"semver"},{"version":"5.4.189","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.110","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.33","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"5.16.19","status":"unaffected","lessThanOrEqual":"5.16.*","versionType":"semver"},{"version":"5.17.2","status":"unaffected","lessThanOrEqual":"5.17.*","versionType":"semver"},{"version":"5.18","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/clk/qcom/clk-rcg2.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/52592f9afbfe01bce8f8953e4f19cbe3bcbdbd3a"},{"url":"https://git.kernel.org/stable/c/334720f418f57b1d969dad2117b21f9388cb9395"},{"url":"https://git.kernel.org/stable/c/34dca60982e93e69ae442aa2d36ce61c9a3bb563"},{"url":"https://git.kernel.org/stable/c/96888f0dcf351e758b9df57e015a48427ca709c1"},{"url":"https://git.kernel.org/stable/c/a4e2e31971354790b0d1fa3e783452a9d135fcff"},{"url":"https://git.kernel.org/stable/c/58922910add18583d5273c2edcdb9fd7bf4eca02"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T18:54:50.698Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.16","versionEndExcluding":"5.4.189"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.16","versionEndExcluding":"5.10.110"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.16","versionEndExcluding":"5.15.33"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.16","versionEndExcluding":"5.16.19"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.16","versionEndExcluding":"5.17.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.16","versionEndExcluding":"5.18"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}