Description
Xen before 4.1.x, 4.2.x, and 4.3.x does not take the page_alloc_lock and grant_table.lock in the same order, which allows local guest administrators with access to multiple vcpus to cause a denial of service (host deadlock) via unspecified vectors.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | xen | 4.4.0-1 | — |
| Debian 13 | xen | 4.4.0-1 | — |
| Debian 12 | xen | 4.4.0-1 | — |
| Debian 7 | xen | 4.1.4-3+deb7u2 | DSA-3006-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | kernel +12 | 2.6.18-371.4.1.el5 | RHSA-2014:0108 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | xen | 4.7.0_12-1.3 | openSUSE-SU-2024:10196-1 |
Advisories 3
- RHSA-2014:0108 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-3006-1 xen - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10196-1 xen-4.7.0_12-1.3 on GA media SUSE / openSUSE Security Updates · May 7, 2025
References
- SUSE-SU-2014:0470 vendor-advisory
- [oss-security] 20131101 Xen Security Advisory 73 - Lock order reversal between page allocation and grant table locks mailing-list
- [oss-security] 20131101 Re: Xen Security Advisory 73 - Lock order reversal between page allocation and grant table locks mailing-list
- RHSA-2014:0108 vendor-advisory
- GLSA-201407-03 vendor-advisory
- SUSE-SU-2014:0446 vendor-advisory
- DSA-3006 vendor-advisory
- SUSE-SU-2014:0411 vendor-advisory
- openSUSE-SU-2013:1876 vendor-advisory