High severity7.1NVD Advisory· Published Sep 19, 2025· Updated May 12, 2026

CVE-2025-39853

Description

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

i40e: Fix potential invalid access when MAC list is empty

list_first_entry() never returns NULL - if the list is empty, it still returns a pointer to an invalid object, leading to potential invalid memory access when dereferenced.

Fix this by using list_first_entry_or_null instead of list_first_entry.

AI Insight

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

Affected products

126

Debian/linux
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
Linux/Kernel6 versions
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 5 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=4.6,<5.4.299
- cpe:2.3:o:linux:linux_kernel:6.17:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.17:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.17:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.17:rc4:*:*:*:*:*:*
- (no CPE)range: 4.6
Linux/i40ellm-fuzzy
osv-coords118 versions
pkg:rpm/opensuse/dtb-aarch64&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/dtb-aarch64&distro=openSUSE%20Leap%2016.0 pkg:rpm/opensuse/kernel-64kb&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-64kb&distro=openSUSE%20Leap%2016.0 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-base&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%2016.0 pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%2016.0 pkg:rpm/opensuse/kernel-docs&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-docs&distro=openSUSE%20Leap%2016.0 pkg:rpm/opensuse/kernel-kvmsmall&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-kvmsmall&distro=openSUSE%20Leap%2016.0 pkg:rpm/opensuse/kernel-obs-build&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-obs-build&distro=openSUSE%20Leap%2016.0 pkg:rpm/opensuse/kernel-obs-qa&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-obs-qa&distro=openSUSE%20Leap%2016.0 pkg:rpm/opensuse/kernel-rt_debug&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-rt&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-rt&distro=openSUSE%20Leap%2016.0 pkg:rpm/opensuse/kernel-source-azure&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Leap%2016.0 pkg:rpm/opensuse/kernel-source-rt&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-syms-azure&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-syms&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-syms&distro=openSUSE%20Leap%2016.0 pkg:rpm/opensuse/kernel-syms-rt&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-zfcpdump&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-zfcpdump&distro=openSUSE%20Leap%2016.0 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-64kb&distro=SUSE%20Linux%20Enterprise%20Server%2016.0 pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0 pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Micro%206.2 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-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-default-base&distro=SUSE%20Linux%20Enterprise%20Server%2016.0 pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0 pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Micro%206.0 pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Micro%206.1 pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Micro%206.2 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%20High%20Availability%20Extension%2016.0 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%2016.0 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0 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&distro=SUSE%20Linux%20Micro%206.0 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Micro%206.1 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Micro%206.2 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-docs&distro=SUSE%20Linux%20Enterprise%20Server%2016.0 pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0 pkg:rpm/suse/kernel-kvmsmall&distro=SUSE%20Linux%20Enterprise%20Server%2016.0 pkg:rpm/suse/kernel-kvmsmall&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0 pkg:rpm/suse/kernel-kvmsmall&distro=SUSE%20Linux%20Micro%206.0 pkg:rpm/suse/kernel-kvmsmall&distro=SUSE%20Linux%20Micro%206.1 pkg:rpm/suse/kernel-livepatch-SLE15-SP6-RT_Update_16&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP6 pkg:rpm/suse/kernel-livepatch-SLE15-SP6_Update_16&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP6 pkg:rpm/suse/kernel-livepatch-SLE15-SP7-RT_Update_6&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP7 pkg:rpm/suse/kernel-livepatch-SLE15-SP7_Update_6&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-obs-qa&distro=SUSE%20Linux%20Enterprise%20Server%2016.0 pkg:rpm/suse/kernel-obs-qa&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0 pkg:rpm/suse/kernel-rt_debug&distro=SUSE%20Real%20Time%20Module%2015%20SP6 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%20Linux%20Micro%206.2 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-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&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%2016.0 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Micro%206.0 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Micro%206.1 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Micro%206.2 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-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&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%2016.0 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5 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/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Server%2016.0 pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0 pkg:rpm/suse/kgraft-patch-SLE12-SP5_Update_73&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP5
< 6.4.0-150600.23.73.1+ 117 more
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.12.0-160000.6.1
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.12.0-160000.6.1
- (no CPE)range: < 6.4.0-150600.8.52.1
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.4.0-150600.23.73.1.150600.12.32.1
- (no CPE)range: < 6.12.0-160000.6.1.160000.2.4
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.12.0-160000.6.1
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.12.0-160000.6.1
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.12.0-160000.6.1
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.12.0-160000.6.1
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.12.0-160000.6.1
- (no CPE)range: < 6.4.0-150600.10.55.1
- (no CPE)range: < 6.4.0-150600.10.55.1
- (no CPE)range: < 6.12.0-160000.6.1
- (no CPE)range: < 6.4.0-150600.8.52.1
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.12.0-160000.6.1
- (no CPE)range: < 6.4.0-150600.10.55.1
- (no CPE)range: < 6.4.0-150600.8.52.1
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.12.0-160000.6.1
- (no CPE)range: < 6.4.0-150600.10.55.1
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.12.0-160000.6.1
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.4.0-150700.53.22.1
- (no CPE)range: < 6.12.0-160000.6.1
- (no CPE)range: < 6.12.0-160000.6.1
- (no CPE)range: < 6.12.0-160000.6.1
- (no CPE)range: < 6.4.0-150600.8.52.1
- (no CPE)range: < 6.4.0-150700.20.18.1
- (no CPE)range: < 6.4.0-150600.23.73.1.150600.12.32.1
- (no CPE)range: < 6.4.0-150700.53.22.1.150700.17.15.1
- (no CPE)range: < 6.12.0-160000.6.1.160000.2.4
- (no CPE)range: < 6.12.0-160000.6.1.160000.2.4
- (no CPE)range: < 6.4.0-35.1.21.12
- (no CPE)range: < 6.4.0-35.1.21.12
- (no CPE)range: < 6.12.0-160000.6.1.160000.2.4
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.4.0-150700.53.22.1
- (no CPE)range: < 6.12.0-160000.6.1
- (no CPE)range: < 4.12.14-122.275.1
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.4.0-150700.53.22.1
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.4.0-150700.53.22.1
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.4.0-150700.53.22.1
- (no CPE)range: < 4.12.14-122.275.1
- (no CPE)range: < 6.12.0-160000.6.1
- (no CPE)range: < 6.12.0-160000.6.1
- (no CPE)range: < 4.12.14-122.275.1
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.4.0-150700.53.22.1
- (no CPE)range: < 6.4.0-35.1
- (no CPE)range: < 6.4.0-35.1
- (no CPE)range: < 6.12.0-160000.6.1
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.4.0-150700.53.22.1
- (no CPE)range: < 6.12.0-160000.6.1
- (no CPE)range: < 6.12.0-160000.6.1
- (no CPE)range: < 6.12.0-160000.6.1
- (no CPE)range: < 6.12.0-160000.6.1
- (no CPE)range: < 6.4.0-35.1
- (no CPE)range: < 6.4.0-35.1
- (no CPE)range: < 1-150600.1.3.1
- (no CPE)range: < 1-150600.13.3.1
- (no CPE)range: < 1-150700.1.3.1
- (no CPE)range: < 1-150700.15.3.1
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.4.0-150700.53.22.1
- (no CPE)range: < 6.12.0-160000.6.1
- (no CPE)range: < 6.12.0-160000.6.1
- (no CPE)range: < 6.4.0-150600.10.55.1
- (no CPE)range: < 6.4.0-37.1
- (no CPE)range: < 6.4.0-37.1
- (no CPE)range: < 6.12.0-160000.6.1
- (no CPE)range: < 6.4.0-150600.10.55.1
- (no CPE)range: < 6.4.0-150700.7.22.1
- (no CPE)range: < 6.4.0-150600.8.52.1
- (no CPE)range: < 6.4.0-150700.20.18.1
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.4.0-150700.53.22.1
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.4.0-150700.53.22.1
- (no CPE)range: < 4.12.14-122.275.1
- (no CPE)range: < 6.12.0-160000.6.1
- (no CPE)range: < 6.12.0-160000.6.1
- (no CPE)range: < 4.12.14-122.275.1
- (no CPE)range: < 6.4.0-35.1
- (no CPE)range: < 6.4.0-35.1
- (no CPE)range: < 6.12.0-160000.6.1
- (no CPE)range: < 6.4.0-37.1
- (no CPE)range: < 6.4.0-37.1
- (no CPE)range: < 6.4.0-150600.10.55.1
- (no CPE)range: < 6.4.0-150700.7.22.1
- (no CPE)range: < 6.4.0-150600.8.52.1
- (no CPE)range: < 6.4.0-150700.20.18.1
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.4.0-150700.53.22.1
- (no CPE)range: < 4.12.14-122.275.1
- (no CPE)range: < 6.12.0-160000.6.1
- (no CPE)range: < 6.12.0-160000.6.1
- (no CPE)range: < 4.12.14-122.275.1
- (no CPE)range: < 6.4.0-150600.10.55.1
- (no CPE)range: < 6.4.0-150700.7.22.1
- (no CPE)range: < 6.4.0-150600.23.73.1
- (no CPE)range: < 6.4.0-150700.53.22.1
- (no CPE)range: < 6.12.0-160000.6.1
- (no CPE)range: < 6.12.0-160000.6.1
- (no CPE)range: < 1-8.3.1

Patches

Vulnerability mechanics

References

git.kernel.org/stable/c/1eadabcf5623f1237a539b16586b4ed8ac8dffcdnvdPatch
git.kernel.org/stable/c/3c6fb929afa313d9d11f780451d113f73922fe5dnvdPatch
git.kernel.org/stable/c/66e7cdbda74ee823ec2bf7b830ebd235c54f5ddfnvdPatch
git.kernel.org/stable/c/971feafe157afac443027acdc235badc6838560bnvdPatch
git.kernel.org/stable/c/9c21fc4cebd44dd21016c61261a683af390343f8nvdPatch
git.kernel.org/stable/c/a556f06338e1d5a85af0e32ecb46e365547f92b9nvdPatch
git.kernel.org/stable/c/e2a5e74879f9b494bbd66fa93f355feacde450c7nvdPatch
git.kernel.org/stable/c/fb216d980fae6561c7c70af8ef826faf059c6515nvdPatch
lists.debian.org/debian-lts-announce/2025/10/msg00007.htmlnvdMailing ListThird Party Advisory
lists.debian.org/debian-lts-announce/2025/10/msg00008.htmlnvdMailing ListThird Party Advisory
cert-portal.siemens.com/productcert/html/ssa-032379.htmlnvd
cert-portal.siemens.com/productcert/html/ssa-089022.htmlnvd

News mentions

Siemens SIMATIC
CISA ICS Advisories

cvss	0.461
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000