{"id":"DEBIAN-CVE-2025-38134","details":"In the Linux kernel, the following vulnerability has been resolved:  usb: acpi: Prevent null pointer dereference in usb_acpi_add_usb4_devlink()  As demonstrated by the fix for update_port_device_state, commit 12783c0b9e2c (\"usb: core: Prevent null pointer dereference in update_port_device_state\"), usb_hub_to_struct_hub() can return NULL in certain scenarios, such as during hub driver unbind or teardown race conditions, even if the underlying usb_device structure exists.  Plus, all other places that call usb_hub_to_struct_hub() in the same file do check for NULL return values.  If usb_hub_to_struct_hub() returns NULL, the subsequent access to hub-\u003eports[udev-\u003eportnum - 1] will cause a null pointer dereference.","modified":"2026-08-27T23:05:21.278057851Z","published":"2025-07-03T09:15:27.837Z","upstream":["CVE-2025-38134"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2025-38134"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.12.35-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-38134.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.12.35-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-38134.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"}]}