{"id":"CVE-2019-12819","details":"An issue was discovered in the Linux kernel before 5.0. The function __mdiobus_register() in drivers/net/phy/mdio_bus.c calls put_device(), which will trigger a fixed_mdio_bus_init use-after-free. This will cause a denial of service.","modified":"2026-03-12T22:58:34.829381Z","published":"2019-06-14T02:29:00.330Z","related":["SUSE-SU-2019:1550-1","SUSE-SU-2019:1823-1","SUSE-SU-2019:1823-2","SUSE-SU-2019:1829-1","SUSE-SU-2019:1851-1","SUSE-SU-2019:1852-1","SUSE-SU-2019:1855-1","SUSE-SU-2019:2069-1","SUSE-SU-2019:2430-1","SUSE-SU-2019:2450-1","openSUSE-SU-2019:1571-1","openSUSE-SU-2019:1579-1"],"references":[{"type":"WEB","url":"https://usn.ubuntu.com/4118-1/"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00039.html"},{"type":"WEB","url":"https://usn.ubuntu.com/4094-1/"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00040.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00048.html"},{"type":"WEB","url":"http://packetstormsecurity.com/files/154245/Kernel-Live-Patch-Security-Notice-LSN-0054-1.html"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20190710-0002/"},{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/108768"},{"type":"FIX","url":"https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6ff7b060535e87c2ae14dd8548512abfdda528fb"},{"type":"FIX","url":"https://github.com/torvalds/linux/commit/6ff7b060535e87c2ae14dd8548512abfdda528fb"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2019-12819.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"5.0"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}