DEBIAN-CVE-2022-49223
- Source
- https://security-tracker.debian.org/tracker/CVE-2022-49223
- Import Source
- https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49223.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2022-49223
- Upstream
- Published
- 2025-02-26T07:00:59Z
- Modified
- 2025-10-10T01:01:12Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved: cxl/port: Hold port reference until decoder release KASAN + DEBUGKOBJECTRELEASE reports a potential use-after-free in cxldecoderrelease() where it goes to reference its parent, a cxlport, to free its id back to port->decoderida. BUG: KASAN: use-after-free in tocxlport+0x18/0x90 [cxlcore] 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 kobjectdelayedcleanup Call Trace: <TASK> dumpstacklvl+0x59/0x73 printaddressdescription.constprop.0+0x1f/0x150 ? tocxlport+0x18/0x90 [cxlcore] kasanreport.cold+0x83/0xdf ? tocxlport+0x18/0x90 [cxlcore] tocxlport+0x18/0x90 [cxlcore] cxldecoderrelease+0x2a/0x60 [cxlcore] devicerelease+0x5f/0x100 kobjectcleanup+0x80/0x1c0 The device core only guarantees parent lifetime until all children are unregistered. If a child needs a parent to complete its ->release() callback that child needs to hold a reference to extend the lifetime of the parent.
- References
Affected packages
Debian:12 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:13 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:14 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source