{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-52633","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-03-06T09:52:12.092Z","datePublished":"2024-04-02T06:49:11.596Z","dateUpdated":"2026-01-05T10:16:47.858Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-01-05T10:16:47.858Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\num: time-travel: fix time corruption\n\nIn 'basic' time-travel mode (without =inf-cpu or =ext), we\nstill get timer interrupts. These can happen at arbitrary\npoints in time, i.e. while in timer_read(), which pushes\ntime forward just a little bit. Then, if we happen to get\nthe interrupt after calculating the new time to push to,\nbut before actually finishing that, the interrupt will set\nthe time to a value that's incompatible with the forward,\nand we'll crash because time goes backwards when we do the\nforwarding.\n\nFix this by reading the time_travel_time, calculating the\nadjustment, and doing the adjustment all with interrupts\ndisabled."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/um/kernel/time.c"],"versions":[{"version":"065038706f77a56754e8f0c2556dab7e22dfe577","lessThan":"0c7478a2da3f5fe106b4658338873d50c86ac7ab","status":"affected","versionType":"git"},{"version":"065038706f77a56754e8f0c2556dab7e22dfe577","lessThan":"4f7dad73df4cdb2b7042103d3922745d040ad025","status":"affected","versionType":"git"},{"version":"065038706f77a56754e8f0c2556dab7e22dfe577","lessThan":"de3e9d8e8d1ae0a4d301109d1ec140796901306c","status":"affected","versionType":"git"},{"version":"065038706f77a56754e8f0c2556dab7e22dfe577","lessThan":"b427f55e9d4185f6f17cc1e3296eb8d0c4425283","status":"affected","versionType":"git"},{"version":"065038706f77a56754e8f0c2556dab7e22dfe577","lessThan":"abe4eaa8618bb36c2b33e9cdde0499296a23448c","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/um/kernel/time.c"],"versions":[{"version":"5.3","status":"affected"},{"version":"0","lessThan":"5.3","status":"unaffected","versionType":"semver"},{"version":"5.15.149","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.77","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.16","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.7.4","lessThanOrEqual":"6.7.*","status":"unaffected","versionType":"semver"},{"version":"6.8","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":"5.3","versionEndExcluding":"5.15.149"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.3","versionEndExcluding":"6.1.77"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.3","versionEndExcluding":"6.6.16"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.3","versionEndExcluding":"6.7.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.3","versionEndExcluding":"6.8"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/0c7478a2da3f5fe106b4658338873d50c86ac7ab"},{"url":"https://git.kernel.org/stable/c/4f7dad73df4cdb2b7042103d3922745d040ad025"},{"url":"https://git.kernel.org/stable/c/de3e9d8e8d1ae0a4d301109d1ec140796901306c"},{"url":"https://git.kernel.org/stable/c/b427f55e9d4185f6f17cc1e3296eb8d0c4425283"},{"url":"https://git.kernel.org/stable/c/abe4eaa8618bb36c2b33e9cdde0499296a23448c"}],"title":"um: time-travel: fix time corruption","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-02T23:03:21.364Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/0c7478a2da3f5fe106b4658338873d50c86ac7ab","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/4f7dad73df4cdb2b7042103d3922745d040ad025","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/de3e9d8e8d1ae0a4d301109d1ec140796901306c","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/b427f55e9d4185f6f17cc1e3296eb8d0c4425283","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/abe4eaa8618bb36c2b33e9cdde0499296a23448c","tags":["x_transferred"]}]},{"metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2023-52633","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-09-10T15:53:36.022908Z"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-09-11T17:33:38.365Z"}}]}}