{"id":"AZL-101628","summary":"CVE-2026-89874 affecting package kernel 6.6.150.1-1","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: v4l2-async: avoid deleting unlinked ASC entry on link error\n\nv4l2_async_match_notify() creates ancillary media links before adding\nasc-\u003easc_subdev_entry to sd-\u003easc_list.\n\nIf ancillary link creation fails, the function jumps to\nerr_call_unbind while asc_subdev_entry has not been linked yet. Async\nconnections are zero-allocated, so the list entry still has NULL next\nand prev pointers on this path. Calling list_del() on it can therefore\ndereference NULL instead of returning the original link creation error.\n\nDo not delete asc_subdev_entry from err_call_unbind. There is no list\ninsertion to undo on this path; the bound callback and sub-device\nregistration are the operations that need to be rolled back.","modified":"2026-09-17T14:15:41.511932133Z","published":"2026-09-16T11:16:55Z","upstream":["CVE-2026-89874"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89874"}],"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-101628.json"}}],"schema_version":"1.9.0"}