| Name | CVE-2026-79602 |
| Description | A guest with a PCI device assigned that has at least a BAR on the IO port space can trigger a BUG() in Xen. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-6571-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| xen (PTS) | bookworm | 4.17.5+72-g01140da4e8-1 | vulnerable |
| bookworm (security) | 4.17.7-0+deb12u1 | vulnerable |
| trixie | 4.20.3+127-gc42374a105-0+deb13u1 | vulnerable |
| trixie (security) | 4.20.4+39-gf1e1321c87-0+deb13u1 | fixed |
| forky | 4.20.3+127-gc42374a105-1 | vulnerable |
| sid | 4.20.4+39-gf1e1321c87-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| xen | source | trixie | 4.20.4+39-gf1e1321c87-0+deb13u1 | | DSA-6571-1 | |
| xen | source | (unstable) | 4.20.4+39-gf1e1321c87-1 | | | |
Notes
[bookworm] - xen <postponed> (Minor issue)
https://xenbits.xen.org/xsa/advisory-510.html