Description
In the Linux kernel, the following vulnerability has been resolved:
vdpa: Add max vqp attr to vdpa_nl_policy for nlattr length check
The vdpa_nl_policy structure is used to validate the nlattr when parsing
the incoming nlmsg. It will ensure the attribute being described produces
a valid nlattr pointer in info->attrs before entering into each handler
in vdpa_nl_ops.
That is to say, the missing part in vdpa_nl_policy may lead to illegal
nlattr after parsing, which could lead to OOB read just like CVE-2023-3773.
This patch adds the missing nla_policy for vdpa max vqp attr to avoid
such bugs.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Linux | Linux | 5.15.198 – < 5.15.209, 5.16 | 5.15.209 |
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 | linux | 6.4.13-1 | — |
| Debian 13 | linux | 6.4.13-1 | — |
| Debian 12 | linux | 6.1.52-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | linux-intel +9 | No fix yet | — |
| Ubuntu 22.04 LTS | linux-riscv +32 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-gke +28 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp +14 | No fix yet | — |
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | kernel-64kb +6 | 6.4.0-150700.53.22.1 | SUSE-SU-2025:4057-1 |
| SLES 15 SP7 | kernel-azure +2 | 6.4.0-150700.20.18.1 | SUSE-SU-2025:4132-1 |
| SLES 15 SP7 | kernel-default-base | 6.4.0-150700.53.22.1.150700.17.15.1 | SUSE-SU-2025:4057-1 |
| SLES 15 SP6 | kernel-64kb +6 | 6.4.0-150600.23.78.1 | SUSE-SU-2025:4140-1 |
| SLES 15 SP6 | kernel-azure +2 | 6.4.0-150600.8.55.1 | SUSE-SU-2025:4128-1 |
| SLES 15 SP6 | kernel-default-base | 6.4.0-150600.23.78.1.150600.12.34.2 | SUSE-SU-2025:4140-1 |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLE Micro 6.1 | kernel-default-base | 6.4.0-36.1.21.13 | SUSE-SU-2025:21056-1 |
| SLE Micro 6.1 | kernel-rt +1 | 6.4.0-38.1 | SUSE-SU-2025:21064-1 |
| SLE Micro 6.1 | kernel-source +2 | 6.4.0-36.1 | SUSE-SU-2025:21056-1 |
| SLE Micro 6.0 | kernel-default-base | 6.4.0-36.1.21.13 | SUSE-SU-2025:21040-1 |
| SLE Micro 6.0 | kernel-rt +1 | 6.4.0-38.1 | SUSE-SU-2025:21052-1 |
| SLE Micro 6.0 | kernel-source +2 | 6.4.0-36.1 | SUSE-SU-2025:21040-1 |
| SLE Live Patching 15 SP7 | kernel-default | 6.4.0-150700.53.22.1 | SUSE-SU-2025:4057-1 |
| SLE Live Patching 15 SP7 | kernel-livepatch-SLE15-SP7-RT_Update_6 | 1-150700.1.3.1 | SUSE-SU-2025:4141-1 |
| SLE Live Patching 15 SP7 | kernel-livepatch-SLE15-SP7_Update_6 | 1-150700.15.3.1 | SUSE-SU-2025:4057-1 |
| SLE Live Patching 15 SP6 | kernel-default | 6.4.0-150600.23.78.1 | SUSE-SU-2025:4140-1 |
| SLE Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6-RT_Update_17 | 1-150600.1.3.1 | SUSE-SU-2025:4301-1 |
| SLE Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6_Update_17 | 1-150600.13.5.1 | SUSE-SU-2025:4140-1 |
| SUSE Real Time Module 15 SP7 | kernel-rt +2 | 6.4.0-150700.7.22.1 | SUSE-SU-2025:4141-1 |
| SUSE Real Time Module 15 SP6 | kernel-rt +3 | 6.4.0-150600.10.58.1 | SUSE-SU-2025:4301-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.6 | dtb-aarch64 +10 | 6.4.0-150600.23.78.1 | SUSE-SU-2025:4140-1 |
| openSUSE Leap 15.6 | kernel-azure +2 | 6.4.0-150600.8.55.1 | SUSE-SU-2025:4128-1 |
| openSUSE Leap 15.6 | kernel-default-base | 6.4.0-150600.23.78.1.150600.12.34.2 | SUSE-SU-2025:4140-1 |
| openSUSE Leap 15.6 | kernel-rt +3 | 6.4.0-150600.10.58.1 | SUSE-SU-2025:4301-1 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | kernel | No fix yet | — |
Advisories 11
- WID-SEC-2025-2194 Linux Kernel: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 12, 2026
- SUSE-SU-2025:4140-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:21056-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:4141-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:21040-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:21052-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:21064-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2025:4128-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:4132-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:4057-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:4301-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026