{"id":"CVE-2026-80676","state":"PUBLISHED","title":"Drivers: hv: vmbus: use generic driver_override infrastructure","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nDrivers: hv: vmbus: use generic driver_override infrastructure\n\nWhen a driver is probed through __driver_attach(), the bus' match()\ncallback is called without the device lock held, thus accessing the\ndriver_override field without a lock, which can cause a UAF.\n\nFix this by using the driver-core driver_override infrastructure taking\ncare of proper locking internally.\n\nNote that calling match() from __driver_attach() without the device lock\nheld is intentional. [1]","publishedAt":"2026-08-28T06:49:14.747Z","updatedAt":"2026-10-21T12:46:51.475Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"d765edbb301c0e196015a59b17420558088ea33f","status":"affected","lessThan":"a1656234a4a2dc6e975546867887c5f63e4a90f0","versionType":"git"},{"version":"d765edbb301c0e196015a59b17420558088ea33f","status":"affected","lessThan":"d1cb12ae81d2f7a58b0b1cfb51862afca98e6058","versionType":"git"},{"version":"d765edbb301c0e196015a59b17420558088ea33f","status":"affected","lessThan":"0e2f0833556c8c5269deb457b89d538644a3b747","versionType":"git"},{"version":"d765edbb301c0e196015a59b17420558088ea33f","status":"affected","lessThan":"2fb010ea7ca98cd09a6d365260b769f627e73a76","versionType":"git"},{"version":"d765edbb301c0e196015a59b17420558088ea33f","status":"affected","lessThan":"331d8900121a1d74ecd45cd2db742ddcb5a0a565","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/hv/vmbus_drv.c","include/linux/hyperv.h"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.20","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.20","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.97","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.40","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.5","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/hv/vmbus_drv.c","include/linux/hyperv.h"]}],"references":["https://git.kernel.org/stable/c/a1656234a4a2dc6e975546867887c5f63e4a90f0","https://git.kernel.org/stable/c/d1cb12ae81d2f7a58b0b1cfb51862afca98e6058","https://git.kernel.org/stable/c/0e2f0833556c8c5269deb457b89d538644a3b747","https://git.kernel.org/stable/c/2fb010ea7ca98cd09a6d365260b769f627e73a76","https://git.kernel.org/stable/c/331d8900121a1d74ecd45cd2db742ddcb5a0a565"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:07.220Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/80xxx/CVE-2026-80676.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-80676","state":"PUBLISHED","datePublished":"2026-08-28T06:49:14.747Z","dateUpdated":"2026-10-21T12:46:51.475Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-08-26T14:34:25.783Z"},"containers":{"cna":{"title":"Drivers: hv: vmbus: use generic driver_override infrastructure","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nDrivers: hv: vmbus: use generic driver_override infrastructure\n\nWhen a driver is probed through __driver_attach(), the bus' match()\ncallback is called without the device lock held, thus accessing the\ndriver_override field without a lock, which can cause a UAF.\n\nFix this by using the driver-core driver_override infrastructure taking\ncare of proper locking internally.\n\nNote that calling match() from __driver_attach() without the device lock\nheld is intentional. [1]"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"d765edbb301c0e196015a59b17420558088ea33f","status":"affected","lessThan":"a1656234a4a2dc6e975546867887c5f63e4a90f0","versionType":"git"},{"version":"d765edbb301c0e196015a59b17420558088ea33f","status":"affected","lessThan":"d1cb12ae81d2f7a58b0b1cfb51862afca98e6058","versionType":"git"},{"version":"d765edbb301c0e196015a59b17420558088ea33f","status":"affected","lessThan":"0e2f0833556c8c5269deb457b89d538644a3b747","versionType":"git"},{"version":"d765edbb301c0e196015a59b17420558088ea33f","status":"affected","lessThan":"2fb010ea7ca98cd09a6d365260b769f627e73a76","versionType":"git"},{"version":"d765edbb301c0e196015a59b17420558088ea33f","status":"affected","lessThan":"331d8900121a1d74ecd45cd2db742ddcb5a0a565","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/hv/vmbus_drv.c","include/linux/hyperv.h"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.20","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.20","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.97","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.40","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.5","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/hv/vmbus_drv.c","include/linux/hyperv.h"]}],"references":[{"url":"https://git.kernel.org/stable/c/a1656234a4a2dc6e975546867887c5f63e4a90f0"},{"url":"https://git.kernel.org/stable/c/d1cb12ae81d2f7a58b0b1cfb51862afca98e6058"},{"url":"https://git.kernel.org/stable/c/0e2f0833556c8c5269deb457b89d538644a3b747"},{"url":"https://git.kernel.org/stable/c/2fb010ea7ca98cd09a6d365260b769f627e73a76"},{"url":"https://git.kernel.org/stable/c/331d8900121a1d74ecd45cd2db742ddcb5a0a565"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-21T12:46:51.475Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"6.6.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"6.12.97"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"6.18.40"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"7.1.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}