Description
An optional feature of PCI MSI called "Multiple Message" allows a
device to use multiple consecutive interrupt vectors. Unlike for MSI-X,
the setting up of these consecutive vectors needs to happen all in one
go. In this handling an error path could be taken in different
situations, with or without a particular lock held. This error path
wrongly releases the lock even when it is not currently held.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Xen | Xen | — | — |
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 | 4.19.1-1 | — |
| Debian 13 | xen | 4.19.1-1 | — |
| Debian 12 | xen | 4.17.5+23-ga4e5191dc0-1 | DSA-5836-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | xen | No fix yet | — |
| Ubuntu 26.04 LTS | xen | No fix yet | — |
| Ubuntu 25.10 | xen | No fix yet | — |
| Ubuntu 24.04 LTS | xen | No fix yet | — |
| Ubuntu 22.04 LTS | xen | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | xen | No fix yet | — |
| Ubuntu 18.04 LTS | xen | No fix yet | — |
| Ubuntu 16.04 LTS | xen | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP6 | xen | 4.18.2_06-150600.3.3.1 | SUSE-SU-2024:2531-1 |
| SLES 15 SP5 | xen | 4.17.4_04-150500.3.33.1 | SUSE-SU-2024:2654-1 |
| SLES 15 SP4 | xen | 4.16.6_04-150400.4.62.1 | SUSE-SU-2024:3423-1 |
| SLES 15 SP3 | xen | 4.14.6_16-150300.3.75.1 | SUSE-SU-2024:2533-1 |
| SLES 15 SP2 | xen | 4.13.5_12-150200.3.93.1 | SUSE-SU-2024:2535-1 |
Show 16 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP5 | xen | 4.12.4_50-3.112.1 | SUSE-SU-2024:2534-1 |
| SLES for SAP 15 SP4 | xen | 4.16.6_04-150400.4.62.1 | SUSE-SU-2024:3423-1 |
| SLES for SAP 15 SP3 | xen | 4.14.6_16-150300.3.75.1 | SUSE-SU-2024:2533-1 |
| SLES for SAP 15 SP2 | xen | 4.13.5_12-150200.3.93.1 | SUSE-SU-2024:2535-1 |
| SLES for SAP 12 SP5 | xen | 4.12.4_50-3.112.1 | SUSE-SU-2024:2534-1 |
| SLE Micro 5.5 | xen | 4.17.4_04-150500.3.33.1 | SUSE-SU-2024:2654-1 |
| SLE Micro 5.4 | xen | 4.16.6_04-150400.4.62.1 | SUSE-SU-2024:3423-1 |
| SLE Micro 5.3 | xen | 4.16.6_04-150400.4.62.1 | SUSE-SU-2024:3423-1 |
| SLE Micro 5.2 | xen | 4.14.6_16-150300.3.75.1 | SUSE-SU-2024:2533-1 |
| SLE Micro 5.1 | xen | 4.14.6_16-150300.3.75.1 | SUSE-SU-2024:2533-1 |
| SLE HPC 15 SP4 | xen | 4.16.6_04-150400.4.62.1 | SUSE-SU-2024:3423-1 |
| SLE HPC 15 SP3 | xen | 4.14.6_16-150300.3.75.1 | SUSE-SU-2024:2533-1 |
| SLE HPC 15 SP2 | xen | 4.13.5_12-150200.3.93.1 | SUSE-SU-2024:2535-1 |
| SUSE Manager Server 4.3 | xen | 4.16.6_04-150400.4.62.1 | SUSE-SU-2024:3423-1 |
| SUSE Manager Proxy 4.3 | xen | 4.16.6_04-150400.4.62.1 | SUSE-SU-2024:3423-1 |
| SUSE Enterprise Storage 7.1 | xen | 4.14.6_16-150300.3.75.1 | SUSE-SU-2024:2533-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | xen | 4.18.2_06-2.1 | openSUSE-SU-2024:14204-1 |
| openSUSE Leap 15.6 | xen | 4.18.2_06-150600.3.3.1 | SUSE-SU-2024:2531-1 |
| openSUSE Leap 15.5 | xen | 4.17.4_04-150500.3.33.1 | SUSE-SU-2024:2654-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap Micro 5.5 | xen | 4.17.4_04-150500.3.33.1 | SUSE-SU-2024:2654-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | xen | 4.19.0-r0 | — |
| Alpine v3.23 | xen | 4.19.0-r0 | — |
| Alpine v3.22 | xen | 4.19.0-r0 | — |
| Alpine v3.21 | xen | 4.19.0-r0 | — |
| Alpine v3.20 | xen | 4.18.3-r0 | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | xen | 4.18.3-r0 | — |
| Alpine v3.18 | xen | 4.17.5-r0 | — |
| Alpine v3.17 | xen | 4.16.6-r1 | — |
Advisories 9
- DSA-5836-1 xen - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2024:2531-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:14204-1 xen-4.18.2_06-2.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2534-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2654-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2535-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:3423-1 Security update for xen SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2533-1 Security update for xen SUSE / openSUSE Security Updates · May 2, 2025
- WID-SEC-2024-1632 Xen: Mehrere Schwachstellen BSI CERT-Bund (WID) · Dec 26, 2024