High severity7.8NVD Advisory· Published May 29, 2025· Updated Jul 30, 2026

CVE-2025-37998

Description

In the Linux kernel, the following vulnerability has been resolved:

openvswitch: Fix unsafe attribute parsing in output_userspace()

This patch replaces the manual Netlink attribute iteration in output_userspace() with nla_for_each_nested(), which ensures that only well-formed attributes are processed.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Debian/linux
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
Linux/Kernel8 versions
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 7 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=3.3,<5.4.294
- cpe:2.3:o:linux:linux_kernel:6.15:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.15:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.15:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.15:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.15:rc5:*:*:*:*:*:*
- (no CPE)
- (no CPE)range: 3.3
Linux/openvswitchllm-fuzzy
osv-coords79 versions
pkg:linux/kernel pkg:rpm/opensuse/dtb-aarch64&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-64kb&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-azure&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-debug&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-docs&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-kvmsmall&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-obs-build&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-obs-qa&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-rt&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-rt_debug&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-source-azure&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-source-rt&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-syms&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-syms-azure&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-syms-rt&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-zfcpdump&distro=openSUSE%20Leap%2015.6 pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6 pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7 pkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP6 pkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP7 pkg:rpm/suse/kernel-coco&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Confidential%20Computing%20Technical%20Preview%2015%20SP6 pkg:rpm/suse/kernel-coco_debug&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Confidential%20Computing%20Technical%20Preview%2015%20SP6 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP6 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP7 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP5 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP6 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP7 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Legacy%2015%20SP6 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Legacy%2015%20SP7 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSS pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP6 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP7 pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6 pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7 pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP6 pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP7 pkg:rpm/suse/kernel-livepatch-SLE15-SP6-RT_Update_13&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP6 pkg:rpm/suse/kernel-livepatch-SLE15-SP6_Update_13&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP6 pkg:rpm/suse/kernel-livepatch-SLE15-SP7-RT_Update_2&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP7 pkg:rpm/suse/kernel-livepatch-SLE15-SP7_Update_2&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP7 pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP6 pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP7 pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Micro%206.0 pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Micro%206.1 pkg:rpm/suse/kernel-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP6 pkg:rpm/suse/kernel-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP7 pkg:rpm/suse/kernel-rt_debug&distro=SUSE%20Real%20Time%20Module%2015%20SP6 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP6 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP7 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSS pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5 pkg:rpm/suse/kernel-source-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP6 pkg:rpm/suse/kernel-source-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP7 pkg:rpm/suse/kernel-source-coco&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Confidential%20Computing%20Technical%20Preview%2015%20SP6 pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Micro%206.0 pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Micro%206.1 pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP6 pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP7 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP6 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP7 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSS pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5 pkg:rpm/suse/kernel-syms-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP6 pkg:rpm/suse/kernel-syms-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP7 pkg:rpm/suse/kernel-syms-coco&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Confidential%20Computing%20Technical%20Preview%2015%20SP6 pkg:rpm/suse/kernel-syms-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP6 pkg:rpm/suse/kernel-syms-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP7 pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6 pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7 pkg:rpm/suse/kgraft-patch-SLE12-SP5_Update_70&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP5
>= 3.3.0, < 5.4.294+ 78 more
- (no CPE)range: >= 3.3.0, < 5.4.294
- (no CPE)range: < 6.4.0-150600.23.60.3
- (no CPE)range: < 6.4.0-150600.23.60.4
- (no CPE)range: < 6.4.0-150600.8.43.1
- (no CPE)range: < 6.4.0-150600.23.60.4
- (no CPE)range: < 6.4.0-150600.23.60.5
- (no CPE)range: < 6.4.0-150600.23.60.5.150600.12.26.4
- (no CPE)range: < 6.4.0-150600.23.60.3
- (no CPE)range: < 6.4.0-150600.23.60.4
- (no CPE)range: < 6.4.0-150600.23.60.3
- (no CPE)range: < 6.4.0-150600.23.60.2
- (no CPE)range: < 6.4.0-150600.10.44.1
- (no CPE)range: < 6.4.0-150600.10.44.1
- (no CPE)range: < 6.4.0-150600.23.60.4
- (no CPE)range: < 6.4.0-150600.8.43.1
- (no CPE)range: < 6.4.0-150600.10.44.1
- (no CPE)range: < 6.4.0-150600.23.60.4
- (no CPE)range: < 6.4.0-150600.8.43.1
- (no CPE)range: < 6.4.0-150600.10.44.1
- (no CPE)range: < 6.4.0-150600.23.60.4
- (no CPE)range: < 6.4.0-150600.23.60.4
- (no CPE)range: < 6.4.0-150700.53.6.1
- (no CPE)range: < 6.4.0-150600.8.43.1
- (no CPE)range: < 6.4.0-150700.20.6.1
- (no CPE)range: < 6.4.0-15061.28.coco15sp6.1
- (no CPE)range: < 6.4.0-15061.28.coco15sp6.1
- (no CPE)range: < 6.4.0-150600.23.60.5
- (no CPE)range: < 6.4.0-150700.53.6.1
- (no CPE)range: < 4.12.14-122.266.1
- (no CPE)range: < 6.4.0-150600.23.60.5
- (no CPE)range: < 6.4.0-150700.53.6.1
- (no CPE)range: < 6.4.0-150600.23.60.5
- (no CPE)range: < 6.4.0-150700.53.6.1
- (no CPE)range: < 6.4.0-150600.23.60.5
- (no CPE)range: < 6.4.0-150700.53.6.1
- (no CPE)range: < 4.12.14-122.266.1
- (no CPE)range: < 4.12.14-122.266.1
- (no CPE)range: < 6.4.0-150600.23.60.5
- (no CPE)range: < 6.4.0-150700.53.6.1
- (no CPE)range: < 6.4.0-150600.23.60.5.150600.12.26.4
- (no CPE)range: < 6.4.0-150700.53.6.1.150700.17.6.1
- (no CPE)range: < 6.4.0-150600.23.60.3
- (no CPE)range: < 6.4.0-150700.53.6.1
- (no CPE)range: < 1-150600.1.5.1
- (no CPE)range: < 1-150600.13.6.4
- (no CPE)range: < 1-150700.1.5.1
- (no CPE)range: < 1-150700.15.3.1
- (no CPE)range: < 6.4.0-150600.23.60.3
- (no CPE)range: < 6.4.0-150700.53.6.1
- (no CPE)range: < 6.4.0-33.1
- (no CPE)range: < 6.4.0-33.1
- (no CPE)range: < 6.4.0-150600.10.44.1
- (no CPE)range: < 6.4.0-150700.7.8.1
- (no CPE)range: < 6.4.0-150600.10.44.1
- (no CPE)range: < 6.4.0-150600.23.60.4
- (no CPE)range: < 6.4.0-150700.53.6.1
- (no CPE)range: < 6.4.0-150600.23.60.4
- (no CPE)range: < 6.4.0-150700.53.6.1
- (no CPE)range: < 4.12.14-122.266.1
- (no CPE)range: < 4.12.14-122.266.1
- (no CPE)range: < 6.4.0-150600.8.43.1
- (no CPE)range: < 6.4.0-150700.20.6.1
- (no CPE)range: < 6.4.0-15061.28.coco15sp6.1
- (no CPE)range: < 6.4.0-33.1
- (no CPE)range: < 6.4.0-33.1
- (no CPE)range: < 6.4.0-150600.10.44.1
- (no CPE)range: < 6.4.0-150700.7.8.1
- (no CPE)range: < 6.4.0-150600.23.60.4
- (no CPE)range: < 6.4.0-150700.53.6.1
- (no CPE)range: < 4.12.14-122.266.1
- (no CPE)range: < 4.12.14-122.266.1
- (no CPE)range: < 6.4.0-150600.8.43.1
- (no CPE)range: < 6.4.0-150700.20.6.1
- (no CPE)range: < 6.4.0-15061.28.coco15sp6.1
- (no CPE)range: < 6.4.0-150600.10.44.1
- (no CPE)range: < 6.4.0-150700.7.8.1
- (no CPE)range: < 6.4.0-150600.23.60.4
- (no CPE)range: < 6.4.0-150700.53.6.1
- (no CPE)range: < 1-8.5.1

Patches

Vulnerability mechanics

References

git.kernel.org/stable/c/0236742bd959332181c1fcc41a05b7b709180501nvdPatch
git.kernel.org/stable/c/06b4f110c79716c181a8c5da007c259807840232nvdPatch
git.kernel.org/stable/c/47f7f00cf2fa3137d5c0416ef1a71bdf77901395nvdPatch
git.kernel.org/stable/c/4fa672cbce9c86c3efb8621df1ae580d47813430nvdPatch
git.kernel.org/stable/c/6712dc21506738f5f22b4f68b7c0d9e0df819dbdnvdPatch
git.kernel.org/stable/c/6beb6835c1fbb3f676aebb51a5fee6b77fed9308nvdPatch
git.kernel.org/stable/c/bca8df998cce1fead8cbc69144862eadc2e34c87nvdPatch
git.kernel.org/stable/c/ec334aaab74705cc515205e1da3cb369fdfd93cdnvdPatch
lists.debian.org/debian-lts-announce/2025/08/msg00010.htmlnvdThird Party Advisory
lists.debian.org/debian-lts-announce/2025/10/msg00007.htmlnvdThird Party Advisory
www.zerodayinitiative.com/advisories/ZDI-25-307/nvdThird Party Advisory

News mentions

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cvss	0.507
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000