{"id":"AZL-99684","summary":"CVE-2026-80888 affecting package kernel 6.6.150.1-1","details":"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-\u003eops 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.","modified":"2026-09-06T05:31:44Z","published":"2026-09-04T18:17:56Z","upstream":["CVE-2026-80888"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80888"}],"affected":[{"package":{"name":"kernel","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/kernel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"6.6.150.1-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-99684.json"}}],"schema_version":"1.9.0"}