DEBIAN-CVE-2022-26356
- Source
- https://security-tracker.debian.org/tracker/CVE-2022-26356
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-26356.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2022-26356
- Upstream
- Downstream
- Published
- 2022-04-05T13:15:07Z
- Modified
- 2026-09-01T20:03:23Z
- Severity
-
- 5.6 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
Racy interactions between dirty vram tracking and paging log dirty hypercalls Activation of log dirty mode done by XEN_DMOP_track_dirty_vram (was named HVMOP_track_dirty_vram before Xen 4.9) is racy with ongoing log dirty hypercalls. A suitably timed call to XEN_DMOP_track_dirty_vram can enable log dirty while another CPU is still in the process of tearing down the structures related to a previously enabled log dirty mode (XEN_DOMCTL_SHADOW_OP_OFF). This is due to lack of mutually exclusive locking between both operations and can lead to entries being added in already freed slots, resulting in a memory leak.
- References
Affected packages
Debian:12 / xen
Package
- Name
- xen
- Purl
- pkg:deb/debian/xen?arch=source&distro=bookworm
Debian:13 / xen
Package
- Name
- xen
- Purl
- pkg:deb/debian/xen?arch=source&distro=trixie
Debian:14 / xen
Package
- Name
- xen
- Purl
- pkg:deb/debian/xen?arch=source&distro=forky