{"id":"DEBIAN-CVE-2025-22009","details":"In the Linux kernel, the following vulnerability has been resolved:  regulator: dummy: force synchronous probing  Sometimes I get a NULL pointer dereference at boot time in kobject_get() with the following call stack:  anatop_regulator_probe()  devm_regulator_register()   regulator_register()    regulator_resolve_supply()     kobject_get()  By placing some extra BUG_ON() statements I could verify that this is raised because probing of the 'dummy' regulator driver is not completed ('dummy_regulator_rdev' is still NULL).  In the JTAG debugger I can see that dummy_regulator_probe() and anatop_regulator_probe() can be run by different kernel threads (kworker/u4:*).  I haven't further investigated whether this can be changed or if there are other possibilities to force synchronization between these two probe routines.  On the other hand I don't expect much boot time penalty by probing the 'dummy' regulator synchronously.","modified":"2026-08-27T23:05:12.575135338Z","published":"2025-04-08T09:15:24.460Z","upstream":["CVE-2025-22009"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2025-22009"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.12.21-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-22009.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.12.21-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-22009.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}