{"id":"CVE-2026-72305","state":"PUBLISHED","title":"VDUSE: avoid leaking information to userspace","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nVDUSE: avoid leaking information to userspace\n\nThe bounceing is not necessarily page aligned, so current VDUSE can\nleak kernel information through mapping bounce pages to\nuserspace. Allocate bounce pages with __GFP_ZERO to avoid leaking\ninformation to userspace.","publishedAt":"2026-08-15T05:55:22.914Z","updatedAt":"2026-08-23T12:47:13.473Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"8c773d53fb7b64267b0f55c1d3517cb8c5e29b3c","status":"affected","lessThan":"41e27a6aca608c9e04f091c29c420d03fafe0313","versionType":"git"},{"version":"8c773d53fb7b64267b0f55c1d3517cb8c5e29b3c","status":"affected","lessThan":"3ae878f262bd1445c8c31511856a99962a05fe16","versionType":"git"},{"version":"8c773d53fb7b64267b0f55c1d3517cb8c5e29b3c","status":"affected","lessThan":"fde25641cbddd0c084e3320d08f755e7e6acfae5","versionType":"git"},{"version":"8c773d53fb7b64267b0f55c1d3517cb8c5e29b3c","status":"affected","lessThan":"5e88c1bc3a41d9a260dd42bae8ad18fd4f35bbe1","versionType":"git"},{"version":"8c773d53fb7b64267b0f55c1d3517cb8c5e29b3c","status":"affected","lessThan":"690fb82c4122f8c2656fa4f842275132771b68b9","versionType":"git"},{"version":"8c773d53fb7b64267b0f55c1d3517cb8c5e29b3c","status":"affected","lessThan":"00335df9da2011e095f846d645cc2e9fd2907659","versionType":"git"},{"version":"8c773d53fb7b64267b0f55c1d3517cb8c5e29b3c","status":"affected","lessThan":"9c1523803445ee0348f62b77793266dd981596e0","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/vdpa/vdpa_user/iova_domain.c","drivers/vdpa/vdpa_user/vduse_dev.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.15","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.15","versionType":"semver"},{"version":"5.15.217","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.184","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.148","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.101","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.42","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/vdpa/vdpa_user/iova_domain.c","drivers/vdpa/vdpa_user/vduse_dev.c"]}],"references":["https://git.kernel.org/stable/c/41e27a6aca608c9e04f091c29c420d03fafe0313","https://git.kernel.org/stable/c/3ae878f262bd1445c8c31511856a99962a05fe16","https://git.kernel.org/stable/c/fde25641cbddd0c084e3320d08f755e7e6acfae5","https://git.kernel.org/stable/c/5e88c1bc3a41d9a260dd42bae8ad18fd4f35bbe1","https://git.kernel.org/stable/c/690fb82c4122f8c2656fa4f842275132771b68b9","https://git.kernel.org/stable/c/00335df9da2011e095f846d645cc2e9fd2907659","https://git.kernel.org/stable/c/9c1523803445ee0348f62b77793266dd981596e0"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:58.252Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/72xxx/CVE-2026-72305.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-72305","state":"PUBLISHED","datePublished":"2026-08-15T05:55:22.914Z","dateUpdated":"2026-08-23T12:47:13.473Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-08-09T03:40:39.918Z"},"containers":{"cna":{"title":"VDUSE: avoid leaking information to userspace","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nVDUSE: avoid leaking information to userspace\n\nThe bounceing is not necessarily page aligned, so current VDUSE can\nleak kernel information through mapping bounce pages to\nuserspace. Allocate bounce pages with __GFP_ZERO to avoid leaking\ninformation to userspace."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"8c773d53fb7b64267b0f55c1d3517cb8c5e29b3c","status":"affected","lessThan":"41e27a6aca608c9e04f091c29c420d03fafe0313","versionType":"git"},{"version":"8c773d53fb7b64267b0f55c1d3517cb8c5e29b3c","status":"affected","lessThan":"3ae878f262bd1445c8c31511856a99962a05fe16","versionType":"git"},{"version":"8c773d53fb7b64267b0f55c1d3517cb8c5e29b3c","status":"affected","lessThan":"fde25641cbddd0c084e3320d08f755e7e6acfae5","versionType":"git"},{"version":"8c773d53fb7b64267b0f55c1d3517cb8c5e29b3c","status":"affected","lessThan":"5e88c1bc3a41d9a260dd42bae8ad18fd4f35bbe1","versionType":"git"},{"version":"8c773d53fb7b64267b0f55c1d3517cb8c5e29b3c","status":"affected","lessThan":"690fb82c4122f8c2656fa4f842275132771b68b9","versionType":"git"},{"version":"8c773d53fb7b64267b0f55c1d3517cb8c5e29b3c","status":"affected","lessThan":"00335df9da2011e095f846d645cc2e9fd2907659","versionType":"git"},{"version":"8c773d53fb7b64267b0f55c1d3517cb8c5e29b3c","status":"affected","lessThan":"9c1523803445ee0348f62b77793266dd981596e0","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/vdpa/vdpa_user/iova_domain.c","drivers/vdpa/vdpa_user/vduse_dev.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.15","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.15","versionType":"semver"},{"version":"5.15.217","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.184","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.148","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.101","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.42","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/vdpa/vdpa_user/iova_domain.c","drivers/vdpa/vdpa_user/vduse_dev.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/41e27a6aca608c9e04f091c29c420d03fafe0313"},{"url":"https://git.kernel.org/stable/c/3ae878f262bd1445c8c31511856a99962a05fe16"},{"url":"https://git.kernel.org/stable/c/fde25641cbddd0c084e3320d08f755e7e6acfae5"},{"url":"https://git.kernel.org/stable/c/5e88c1bc3a41d9a260dd42bae8ad18fd4f35bbe1"},{"url":"https://git.kernel.org/stable/c/690fb82c4122f8c2656fa4f842275132771b68b9"},{"url":"https://git.kernel.org/stable/c/00335df9da2011e095f846d645cc2e9fd2907659"},{"url":"https://git.kernel.org/stable/c/9c1523803445ee0348f62b77793266dd981596e0"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-23T12:47:13.473Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"5.15.217"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.1.184"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.6.148"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.12.101"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.18.42"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"7.1.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}