{"id":"CVE-2026-64589","state":"PUBLISHED","title":"i2c: core: fix NULL-deref on adapter registration failure","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: core: fix NULL-deref on adapter registration failure\n\nIf adapter registration ever fails the release callback would trigger a\nNULL-pointer dereference as the completion struct has not been\ninitialised.\n\nNote that before the offending commit this would instead have resulted\nin a minor memory leak of the adapter name.","publishedAt":"2026-08-06T07:13:47.291Z","updatedAt":"2026-08-17T04:58:10.524Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e19f31169f85c712c9fca35bfd28ceb093a9f574","status":"affected","lessThan":"2ce0a74bfa3acdfcdb00cf02f181f2754b451f42","versionType":"git"},{"version":"3f8c4f5e9a57868fa107016c81165686d23325f2","status":"affected","lessThan":"3351c5e77749a0c8a1e252b95420c143ebcf07ac","versionType":"git"},{"version":"3f8c4f5e9a57868fa107016c81165686d23325f2","status":"affected","lessThan":"034e307428119b67f5f18a35e4f4e7d15a2b9774","versionType":"git"},{"version":"3f8c4f5e9a57868fa107016c81165686d23325f2","status":"affected","lessThan":"2295d2bb101faa663fbc45fadbb3fec45f107441","versionType":"git"},{"version":"6.12.11","status":"affected","lessThan":"6.12.96","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/i2c/i2c-core-base.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.13","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.13","versionType":"semver"},{"version":"6.12.96","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.39","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.4","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/i2c/i2c-core-base.c"]}],"references":["https://git.kernel.org/stable/c/2ce0a74bfa3acdfcdb00cf02f181f2754b451f42","https://git.kernel.org/stable/c/3351c5e77749a0c8a1e252b95420c143ebcf07ac","https://git.kernel.org/stable/c/034e307428119b67f5f18a35e4f4e7d15a2b9774","https://git.kernel.org/stable/c/2295d2bb101faa663fbc45fadbb3fec45f107441"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:41.951Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/64xxx/CVE-2026-64589.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-64589","state":"PUBLISHED","datePublished":"2026-08-06T07:13:47.291Z","dateUpdated":"2026-08-17T04:58:10.524Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-07-19T15:36:31.798Z"},"containers":{"cna":{"title":"i2c: core: fix NULL-deref on adapter registration failure","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: core: fix NULL-deref on adapter registration failure\n\nIf adapter registration ever fails the release callback would trigger a\nNULL-pointer dereference as the completion struct has not been\ninitialised.\n\nNote that before the offending commit this would instead have resulted\nin a minor memory leak of the adapter name."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e19f31169f85c712c9fca35bfd28ceb093a9f574","status":"affected","lessThan":"2ce0a74bfa3acdfcdb00cf02f181f2754b451f42","versionType":"git"},{"version":"3f8c4f5e9a57868fa107016c81165686d23325f2","status":"affected","lessThan":"3351c5e77749a0c8a1e252b95420c143ebcf07ac","versionType":"git"},{"version":"3f8c4f5e9a57868fa107016c81165686d23325f2","status":"affected","lessThan":"034e307428119b67f5f18a35e4f4e7d15a2b9774","versionType":"git"},{"version":"3f8c4f5e9a57868fa107016c81165686d23325f2","status":"affected","lessThan":"2295d2bb101faa663fbc45fadbb3fec45f107441","versionType":"git"},{"version":"6.12.11","status":"affected","lessThan":"6.12.96","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/i2c/i2c-core-base.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.13","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.13","versionType":"semver"},{"version":"6.12.96","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.39","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.4","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/i2c/i2c-core-base.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/2ce0a74bfa3acdfcdb00cf02f181f2754b451f42"},{"url":"https://git.kernel.org/stable/c/3351c5e77749a0c8a1e252b95420c143ebcf07ac"},{"url":"https://git.kernel.org/stable/c/034e307428119b67f5f18a35e4f4e7d15a2b9774"},{"url":"https://git.kernel.org/stable/c/2295d2bb101faa663fbc45fadbb3fec45f107441"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-17T04:58:10.524Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12.11","versionEndExcluding":"6.12.96"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.13","versionEndExcluding":"6.18.39"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.13","versionEndExcluding":"7.1.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.13","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}