{"id":"AZL-109329","summary":"CVE-2026-98669 affecting package kernel 6.6.157.1-1","details":"In the Linux kernel, the following vulnerability has been resolved:\n\niio: buffer: serialize buffer teardown with mode claims\n\nBuffer-mode claims hold mlock to guarantee that the device remains in\nbuffer mode until the claim is released. Normal buffer updates take\ninfo_exist_lock followed by mlock in iio_update_buffers().\n\nHowever, iio_device_unregister() disables and deactivates all buffers\nwithout taking mlock. This can invalidate buffer state, including\nactive_scan_mask, while a buffer-mode claim is held.\n\nTake mlock in iio_disable_all_buffers() so that unregister honors the\nmode-claim lifetime guarantee. The info_exist_lock -\u003e mlock ordering\nmatches iio_update_buffers().","modified":"2026-10-19T14:17:06.041080160Z","published":"2026-10-18T16:17:20Z","upstream":["CVE-2026-98669"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98669"}],"affected":[{"package":{"name":"kernel","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/kernel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"6.6.157.1-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-109329.json"}}],"schema_version":"1.9.0"}