{"api_version":"1","generated_at":"2026-09-10T07:28:32+00:00","cve":"CVE-2026-80888","urls":{"html":"https://cve.report/CVE-2026-80888","api":"https://cve.report/api/cve/CVE-2026-80888.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-80888","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-80888"},"summary":{"title":"drm/vmwgfx: drop dma_buf reference on foreign-fd prime import","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vmwgfx: drop dma_buf reference on foreign-fd prime import\n\nttm_prime_fd_to_handle() returns -ENOSYS when the imported fd's\ndma_buf->ops do not match the ttm_object_device's ops, but does so\nwithout releasing the reference acquired by dma_buf_get().  Any\nunprivileged renderD client passing a non-vmwgfx prime fd through the\nDRM_VMW_GB_SURFACE_REF{,_EXT} path leaks one dma_buf reference per\ncall and indefinitely pins the foreign exporter's GEM resources.\n\nFunnel the error path through the existing dma_buf_put() so the\nreference is always dropped.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-04 18:17:56","updated_at":"2026-09-04 18:17:56"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/619c3cfa88e09603a13d918f754808db2dda7057","name":"https://git.kernel.org/stable/c/619c3cfa88e09603a13d918f754808db2dda7057","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4df39eb99bb47d1f24d1952c23b21b10988356bf","name":"https://git.kernel.org/stable/c/4df39eb99bb47d1f24d1952c23b21b10988356bf","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a8434b145b1e467940334c58c00af241e9494c5f","name":"https://git.kernel.org/stable/c/a8434b145b1e467940334c58c00af241e9494c5f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f739416dc555fa205a785e5135d73fa39b26f35d","name":"https://git.kernel.org/stable/c/f739416dc555fa205a785e5135d73fa39b26f35d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/c1c22fca0a0896a452a7cb92422d67babd65b4be","name":"https://git.kernel.org/stable/c/c1c22fca0a0896a452a7cb92422d67babd65b4be","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a1e972fa94c3a8069e022c67b9d97c7aa7b05293","name":"https://git.kernel.org/stable/c/a1e972fa94c3a8069e022c67b9d97c7aa7b05293","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-80888","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80888","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 65981f7681abdf92b25942222b629b9c512d0705 619c3cfa88e09603a13d918f754808db2dda7057 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 65981f7681abdf92b25942222b629b9c512d0705 c1c22fca0a0896a452a7cb92422d67babd65b4be git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 65981f7681abdf92b25942222b629b9c512d0705 a1e972fa94c3a8069e022c67b9d97c7aa7b05293 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 65981f7681abdf92b25942222b629b9c512d0705 a8434b145b1e467940334c58c00af241e9494c5f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 65981f7681abdf92b25942222b629b9c512d0705 4df39eb99bb47d1f24d1952c23b21b10988356bf git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 65981f7681abdf92b25942222b629b9c512d0705 f739416dc555fa205a785e5135d73fa39b26f35d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3.13","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 3.13 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.183 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.151 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.103 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.44 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.8 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"80888","cve":"CVE-2026-80888","epss":"0.001730000","percentile":"0.068830000","score_date":"2026-09-07","updated_at":"2026-09-08 00:05:26"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/gpu/drm/vmwgfx/ttm_object.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"619c3cfa88e09603a13d918f754808db2dda7057","status":"affected","version":"65981f7681abdf92b25942222b629b9c512d0705","versionType":"git"},{"lessThan":"c1c22fca0a0896a452a7cb92422d67babd65b4be","status":"affected","version":"65981f7681abdf92b25942222b629b9c512d0705","versionType":"git"},{"lessThan":"a1e972fa94c3a8069e022c67b9d97c7aa7b05293","status":"affected","version":"65981f7681abdf92b25942222b629b9c512d0705","versionType":"git"},{"lessThan":"a8434b145b1e467940334c58c00af241e9494c5f","status":"affected","version":"65981f7681abdf92b25942222b629b9c512d0705","versionType":"git"},{"lessThan":"4df39eb99bb47d1f24d1952c23b21b10988356bf","status":"affected","version":"65981f7681abdf92b25942222b629b9c512d0705","versionType":"git"},{"lessThan":"f739416dc555fa205a785e5135d73fa39b26f35d","status":"affected","version":"65981f7681abdf92b25942222b629b9c512d0705","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/gpu/drm/vmwgfx/ttm_object.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.13"},{"lessThan":"3.13","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.183","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.151","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.103","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.44","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.8","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.183","versionStartIncluding":"3.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.151","versionStartIncluding":"3.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.103","versionStartIncluding":"3.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.44","versionStartIncluding":"3.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.8","versionStartIncluding":"3.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2","versionStartIncluding":"3.13","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vmwgfx: drop dma_buf reference on foreign-fd prime import\n\nttm_prime_fd_to_handle() returns -ENOSYS when the imported fd's\ndma_buf->ops do not match the ttm_object_device's ops, but does so\nwithout releasing the reference acquired by dma_buf_get().  Any\nunprivileged renderD client passing a non-vmwgfx prime fd through the\nDRM_VMW_GB_SURFACE_REF{,_EXT} path leaks one dma_buf reference per\ncall and indefinitely pins the foreign exporter's GEM resources.\n\nFunnel the error path through the existing dma_buf_put() so the\nreference is always dropped."}],"providerMetadata":{"dateUpdated":"2026-09-04T17:11:04.975Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/619c3cfa88e09603a13d918f754808db2dda7057"},{"url":"https://git.kernel.org/stable/c/c1c22fca0a0896a452a7cb92422d67babd65b4be"},{"url":"https://git.kernel.org/stable/c/a1e972fa94c3a8069e022c67b9d97c7aa7b05293"},{"url":"https://git.kernel.org/stable/c/a8434b145b1e467940334c58c00af241e9494c5f"},{"url":"https://git.kernel.org/stable/c/4df39eb99bb47d1f24d1952c23b21b10988356bf"},{"url":"https://git.kernel.org/stable/c/f739416dc555fa205a785e5135d73fa39b26f35d"}],"title":"drm/vmwgfx: drop dma_buf reference on foreign-fd prime import","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-80888","datePublished":"2026-09-04T17:11:04.975Z","dateReserved":"2026-08-26T14:34:25.799Z","dateUpdated":"2026-09-04T17:11:04.975Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-04 18:17:56","lastModifiedDate":"2026-09-04 18:17:56","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"80888","Ordinal":"1","Title":"drm/vmwgfx: drop dma_buf reference on foreign-fd prime import","CVE":"CVE-2026-80888","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"80888","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vmwgfx: drop dma_buf reference on foreign-fd prime import\n\nttm_prime_fd_to_handle() returns -ENOSYS when the imported fd's\ndma_buf->ops do not match the ttm_object_device's ops, but does so\nwithout releasing the reference acquired by dma_buf_get().  Any\nunprivileged renderD client passing a non-vmwgfx prime fd through the\nDRM_VMW_GB_SURFACE_REF{,_EXT} path leaks one dma_buf reference per\ncall and indefinitely pins the foreign exporter's GEM resources.\n\nFunnel the error path through the existing dma_buf_put() so the\nreference is always dropped.","Type":"Description","Title":"drm/vmwgfx: drop dma_buf reference on foreign-fd prime import"}]}}}