{"api_version":"1","generated_at":"2026-08-15T08:45:36+00:00","cve":"CVE-2026-74420","urls":{"html":"https://cve.report/CVE-2026-74420","api":"https://cve.report/api/cve/CVE-2026-74420.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-74420","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-74420"},"summary":{"title":"drm/gpusvm: Reject VMAs with VM_IO or VM_PFNMAP when creating SVM ranges","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/gpusvm: Reject VMAs with VM_IO or VM_PFNMAP when creating SVM ranges\n\nVMAs marked with VM_IO or VM_PFNMAP are not backed by struct page\nobjects, which GPUSVM requires in order to operate correctly. In\nparticular, get_pages() relies on hmm_range_fault() to resolve struct\npages for the target range.\n\nAttempting to create an SVM range on such VMAs results in repeated\nget_pages() failures and can lead to an infinite loop inside a driver’s\npage‑fault handler. Prevent this by rejecting ranges on VM_IO or\nVM_PFNMAP VMAs and returning -EIO.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-15 06:22:44","updated_at":"2026-08-15 06:22:44"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/63f443384979563f16f70420f4fa85bba31238ca","name":"https://git.kernel.org/stable/c/63f443384979563f16f70420f4fa85bba31238ca","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/353f26c74660bcbd8d82cd76622748e14a5a5db3","name":"https://git.kernel.org/stable/c/353f26c74660bcbd8d82cd76622748e14a5a5db3","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b82a225e57a334335a21462b75ee2223bc6efe6d","name":"https://git.kernel.org/stable/c/b82a225e57a334335a21462b75ee2223bc6efe6d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-74420","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74420","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 99624bdff8670795b678eafa6509aaad3a5c0175 353f26c74660bcbd8d82cd76622748e14a5a5db3 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 99624bdff8670795b678eafa6509aaad3a5c0175 63f443384979563f16f70420f4fa85bba31238ca git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 99624bdff8670795b678eafa6509aaad3a5c0175 b82a225e57a334335a21462b75ee2223bc6efe6d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.15","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.15 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.40 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.5 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2-rc1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/gpu/drm/drm_gpusvm.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"353f26c74660bcbd8d82cd76622748e14a5a5db3","status":"affected","version":"99624bdff8670795b678eafa6509aaad3a5c0175","versionType":"git"},{"lessThan":"63f443384979563f16f70420f4fa85bba31238ca","status":"affected","version":"99624bdff8670795b678eafa6509aaad3a5c0175","versionType":"git"},{"lessThan":"b82a225e57a334335a21462b75ee2223bc6efe6d","status":"affected","version":"99624bdff8670795b678eafa6509aaad3a5c0175","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/gpu/drm/drm_gpusvm.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.15"},{"lessThan":"6.15","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.40","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.5","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.40","versionStartIncluding":"6.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.5","versionStartIncluding":"6.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2-rc1","versionStartIncluding":"6.15","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/gpusvm: Reject VMAs with VM_IO or VM_PFNMAP when creating SVM ranges\n\nVMAs marked with VM_IO or VM_PFNMAP are not backed by struct page\nobjects, which GPUSVM requires in order to operate correctly. In\nparticular, get_pages() relies on hmm_range_fault() to resolve struct\npages for the target range.\n\nAttempting to create an SVM range on such VMAs results in repeated\nget_pages() failures and can lead to an infinite loop inside a driver’s\npage‑fault handler. Prevent this by rejecting ranges on VM_IO or\nVM_PFNMAP VMAs and returning -EIO."}],"providerMetadata":{"dateUpdated":"2026-08-15T05:59:24.704Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/353f26c74660bcbd8d82cd76622748e14a5a5db3"},{"url":"https://git.kernel.org/stable/c/63f443384979563f16f70420f4fa85bba31238ca"},{"url":"https://git.kernel.org/stable/c/b82a225e57a334335a21462b75ee2223bc6efe6d"}],"title":"drm/gpusvm: Reject VMAs with VM_IO or VM_PFNMAP when creating SVM ranges","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-74420","datePublished":"2026-08-15T05:59:24.704Z","dateReserved":"2026-08-15T05:44:03.894Z","dateUpdated":"2026-08-15T05:59:24.704Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-15 06:22:44","lastModifiedDate":"2026-08-15 06:22:44","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"74420","Ordinal":"1","Title":"drm/gpusvm: Reject VMAs with VM_IO or VM_PFNMAP when creating SV","CVE":"CVE-2026-74420","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"74420","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/gpusvm: Reject VMAs with VM_IO or VM_PFNMAP when creating SVM ranges\n\nVMAs marked with VM_IO or VM_PFNMAP are not backed by struct page\nobjects, which GPUSVM requires in order to operate correctly. In\nparticular, get_pages() relies on hmm_range_fault() to resolve struct\npages for the target range.\n\nAttempting to create an SVM range on such VMAs results in repeated\nget_pages() failures and can lead to an infinite loop inside a driver’s\npage‑fault handler. Prevent this by rejecting ranges on VM_IO or\nVM_PFNMAP VMAs and returning -EIO.","Type":"Description","Title":"drm/gpusvm: Reject VMAs with VM_IO or VM_PFNMAP when creating SV"}]}}}