{"id":"DEBIAN-CVE-2022-49223","details":"In the Linux kernel, the following vulnerability has been resolved:  cxl/port: Hold port reference until decoder release  KASAN + DEBUG_KOBJECT_RELEASE reports a potential use-after-free in cxl_decoder_release() where it goes to reference its parent, a cxl_port, to free its id back to port-\u003edecoder_ida.   BUG: KASAN: use-after-free in to_cxl_port+0x18/0x90 [cxl_core]  Read of size 8 at addr ffff888119270908 by task kworker/35:2/379   CPU: 35 PID: 379 Comm: kworker/35:2 Tainted: G           OE     5.17.0-rc2+ #198  Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015  Workqueue: events kobject_delayed_cleanup  Call Trace:   \u003cTASK\u003e   dump_stack_lvl+0x59/0x73   print_address_description.constprop.0+0x1f/0x150   ? to_cxl_port+0x18/0x90 [cxl_core]   kasan_report.cold+0x83/0xdf   ? to_cxl_port+0x18/0x90 [cxl_core]   to_cxl_port+0x18/0x90 [cxl_core]   cxl_decoder_release+0x2a/0x60 [cxl_core]   device_release+0x5f/0x100   kobject_cleanup+0x80/0x1c0  The device core only guarantees parent lifetime until all children are unregistered. If a child needs a parent to complete its -\u003erelease() callback that child needs to hold a reference to extend the lifetime of the parent.","modified":"2026-08-27T23:04:46.379358325Z","published":"2025-02-26T07:00:59.363Z","upstream":["CVE-2022-49223"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2022-49223"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.17.3-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49223.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.17.3-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49223.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.17.3-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49223.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:H/I:H/A:H"}]}