CVE-2026-31671

EUVD-2026-25564
In the Linux kernel, the following vulnerability has been resolved:

xfrm_user: fix info leak in build_report()

struct xfrm_user_report is a __u8 proto field followed by a struct
xfrm_selector which means there is three "empty" bytes of padding, but
the padding is never zeroed before copying to userspace.  Fix that up by
zeroing the structure before setting individual member variables.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.5 MEDIUM
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 2%
Affected Products (NVD)
VendorProductVersion
linuxlinux_kernel
2.6.19.1 ≤
𝑥
< 5.10.253
linuxlinux_kernel
5.11 ≤
𝑥
< 5.15.203
linuxlinux_kernel
5.16 ≤
𝑥
< 6.1.169
linuxlinux_kernel
6.2 ≤
𝑥
< 6.6.135
linuxlinux_kernel
6.7 ≤
𝑥
< 6.12.82
linuxlinux_kernel
6.13 ≤
𝑥
< 6.18.23
linuxlinux_kernel
6.19 ≤
𝑥
< 6.19.13
linuxlinux_kernel
2.6.19
linuxlinux_kernel
7.0:rc1
linuxlinux_kernel
7.0:rc2
linuxlinux_kernel
7.0:rc3
linuxlinux_kernel
7.0:rc4
linuxlinux_kernel
7.0:rc5
linuxlinux_kernel
7.0:rc6
linuxlinux_kernel
7.0:rc7
𝑥
= Vulnerable software versions
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
SiemensSIMATIC S7-1500 CPU 1518-4 PN/DP MFP
V3.1.6 ≤
𝑥
< *
ADP
SiemensSIMATIC S7-1500 CPU 1518-4 PN/DP MFP
V3.1.5 ≤
𝑥
< *
ADP
SiemensSIMATIC S7-1500 CPU 1518-4 PN/DP MFP
V3.1.6 ≤
𝑥
< *
ADP
SiemensSIMATIC S7-1500 CPU 1518-4 PN/DP MFP
V3.1.5 ≤
𝑥
< *
ADP
SiemensSIMATIC S7-1500 CPU 1518F-4 PN/DP MFP
V3.1.6 ≤
𝑥
< *
ADP
SiemensSIMATIC S7-1500 CPU 1518F-4 PN/DP MFP
V3.1.5 ≤
𝑥
< *
ADP
SiemensSIMATIC S7-1500 CPU 1518F-4 PN/DP MFP
V3.1.6 ≤
𝑥
< *
ADP
SiemensSIMATIC S7-1500 CPU 1518F-4 PN/DP MFP
V3.1.5 ≤
𝑥
< *
ADP
SiemensSIPLUS S7-1500 CPU 1518-4 PN/DP MFP
V3.1.6 ≤
𝑥
< *
ADP
SiemensSIPLUS S7-1500 CPU 1518-4 PN/DP MFP
V3.1.5 ≤
𝑥
< *
ADP
Debian logo
Debian Releases
Debian Product
Codename
linux
bookworm
6.1.176-1
fixed
bookworm (security)
6.1.177-1
fixed
bullseye
vulnerable
bullseye (security)
5.10.259-1
fixed
forky
7.1.3-1
fixed
sid
7.1.4-1
fixed
trixie
6.12.94-1
fixed
trixie (security)
6.12.96-1
fixed
linux-6.1
bullseye (security)
6.1.176-1~deb11u1
fixed
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openSUSE / SLES Releases
openSUSE Product
Release
cluster-md-kmp-default
suse enterprise server 12 SP5
4.12.14-122.317.1
fixed
dlm-kmp-default
suse enterprise server 12 SP5
4.12.14-122.317.1
fixed
gfs2-kmp-default
suse enterprise server 12 SP5
4.12.14-122.317.1
fixed
kernel-64kb
suse enterprise desktop 15 SP7
6.4.0-150700.53.60.1
fixed
suse enterprise sap 15 SP7
6.4.0-150700.53.60.1
fixed
suse enterprise server 15 SP7
6.4.0-150700.53.60.1
fixed
kernel-default
suse enterprise desktop 15 SP7
6.4.0-150700.53.60.1
fixed
suse enterprise sap 15 SP7
6.4.0-150700.53.60.1
fixed
suse enterprise server 12 SP5
4.12.14-122.317.1
fixed
suse enterprise server 15 SP7
6.4.0-150700.53.60.1
fixed
kernel-default-base
suse enterprise desktop 15 SP7
6.4.0-150700.53.60.1.150700.17.35.4
fixed
suse enterprise sap 15 SP7
6.4.0-150700.53.60.1.150700.17.35.4
fixed
suse enterprise server 12 SP5
4.12.14-122.317.1
fixed
suse enterprise server 15 SP7
6.4.0-150700.53.60.1.150700.17.35.4
fixed
kernel-default-man
suse enterprise server 12 SP5
4.12.14-122.317.1
fixed
kernel-obs-build
suse enterprise desktop 15 SP7
6.4.0-150700.53.60.2
fixed
suse enterprise sap 15 SP7
6.4.0-150700.53.60.2
fixed
suse enterprise server 15 SP7
6.4.0-150700.53.60.2
fixed
kernel-source
suse enterprise desktop 15 SP7
6.4.0-150700.53.60.1
fixed
suse enterprise sap 15 SP7
6.4.0-150700.53.60.1
fixed
suse enterprise server 12 SP5
4.12.14-122.317.1
fixed
suse enterprise server 15 SP7
6.4.0-150700.53.60.1
fixed
kernel-zfcpdump
suse enterprise desktop 15 SP7
6.4.0-150700.53.60.1
fixed
suse enterprise sap 15 SP7
6.4.0-150700.53.60.1
fixed
suse enterprise server 15 SP7
6.4.0-150700.53.60.1
fixed
ocfs2-kmp-default
suse enterprise server 12 SP5
4.12.14-122.317.1
fixed
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Amazon Package
Release
bpftool
Amazon Linux 2023
1:6.1.170-210.320.amzn2023
fixed
bpftool-debuginfo
Amazon Linux 2023
1:6.1.170-210.320.amzn2023
fixed
bpftool6.12
Amazon Linux 2023
1:6.12.83-113.160.amzn2023
fixed
bpftool6.12-debuginfo
Amazon Linux 2023
1:6.12.83-113.160.amzn2023
fixed
bpftool6.18
Amazon Linux 2023
1:6.18.25-55.108.amzn2023
fixed
bpftool6.18-debuginfo
Amazon Linux 2023
1:6.18.25-55.108.amzn2023
fixed
kernel
Amazon Linux 2023
1:6.1.170-210.320.amzn2023
fixed
kernel-debuginfo
Amazon Linux 2023
1:6.1.170-210.320.amzn2023
fixed
kernel-debuginfo-common-aarch64
Amazon Linux 2023
1:6.1.170-210.320.amzn2023
fixed
kernel-debuginfo-common-x86_64
Amazon Linux 2023
1:6.1.170-210.320.amzn2023
fixed
kernel-devel
Amazon Linux 2023
1:6.1.170-210.320.amzn2023
fixed
kernel-headers
Amazon Linux 2023
1:6.1.170-210.320.amzn2023
fixed
kernel-livepatch-6.1.170-210.320
Amazon Linux 2023
1:1.0-0.amzn2023
fixed
kernel-livepatch-6.12.83-113.160
Amazon Linux 2023
1:1.0-0.amzn2023
fixed
kernel-livepatch-6.18.25-55.108
Amazon Linux 2023
1:1.0-0.amzn2023
fixed
kernel-modules-extra
Amazon Linux 2023
1:6.1.170-210.320.amzn2023
fixed
kernel-modules-extra-common
Amazon Linux 2023
1:6.1.170-210.320.amzn2023
fixed
kernel-tools
Amazon Linux 2023
1:6.1.170-210.320.amzn2023
fixed
kernel-tools-debuginfo
Amazon Linux 2023
1:6.1.170-210.320.amzn2023
fixed
kernel-tools-devel
Amazon Linux 2023
1:6.1.170-210.320.amzn2023
fixed
kernel6.12
Amazon Linux 2023
1:6.12.83-113.160.amzn2023
fixed
kernel6.12-debuginfo
Amazon Linux 2023
1:6.12.83-113.160.amzn2023
fixed
kernel6.12-debuginfo-common-aarch64
Amazon Linux 2023
1:6.12.83-113.160.amzn2023
fixed
kernel6.12-debuginfo-common-x86_64
Amazon Linux 2023
1:6.12.83-113.160.amzn2023
fixed
kernel6.12-devel
Amazon Linux 2023
1:6.12.83-113.160.amzn2023
fixed
kernel6.12-headers
Amazon Linux 2023
1:6.12.83-113.160.amzn2023
fixed
kernel6.12-modules-extra
Amazon Linux 2023
1:6.12.83-113.160.amzn2023
fixed
kernel6.12-modules-extra-common
Amazon Linux 2023
1:6.12.83-113.160.amzn2023
fixed
kernel6.12-tools
Amazon Linux 2023
1:6.12.83-113.160.amzn2023
fixed
kernel6.12-tools-debuginfo
Amazon Linux 2023
1:6.12.83-113.160.amzn2023
fixed
kernel6.12-tools-devel
Amazon Linux 2023
1:6.12.83-113.160.amzn2023
fixed
kernel6.18
Amazon Linux 2023
1:6.18.25-55.108.amzn2023
fixed
kernel6.18-debuginfo
Amazon Linux 2023
1:6.18.25-55.108.amzn2023
fixed
kernel6.18-debuginfo-common-aarch64
Amazon Linux 2023
1:6.18.25-55.108.amzn2023
fixed
kernel6.18-debuginfo-common-x86_64
Amazon Linux 2023
1:6.18.25-55.108.amzn2023
fixed
kernel6.18-devel
Amazon Linux 2023
1:6.18.25-55.108.amzn2023
fixed
kernel6.18-headers
Amazon Linux 2023
1:6.18.25-55.108.amzn2023
fixed
kernel6.18-modules-extra
Amazon Linux 2023
1:6.18.25-55.108.amzn2023
fixed
kernel6.18-modules-extra-common
Amazon Linux 2023
1:6.18.25-55.108.amzn2023
fixed
kernel6.18-tools
Amazon Linux 2023
1:6.18.25-55.108.amzn2023
fixed
kernel6.18-tools-debuginfo
Amazon Linux 2023
1:6.18.25-55.108.amzn2023
fixed
kernel6.18-tools-devel
Amazon Linux 2023
1:6.18.25-55.108.amzn2023
fixed
perf
Amazon Linux 2023
1:6.1.170-210.320.amzn2023
fixed
perf-debuginfo
Amazon Linux 2023
1:6.1.170-210.320.amzn2023
fixed
perf6.12
Amazon Linux 2023
1:6.12.83-113.160.amzn2023
fixed
perf6.12-debuginfo
Amazon Linux 2023
1:6.12.83-113.160.amzn2023
fixed
perf6.18
Amazon Linux 2023
1:6.18.25-55.108.amzn2023
fixed
perf6.18-debuginfo
Amazon Linux 2023
1:6.18.25-55.108.amzn2023
fixed
python3-perf
Amazon Linux 2023
1:6.1.170-210.320.amzn2023
fixed
python3-perf-debuginfo
Amazon Linux 2023
1:6.1.170-210.320.amzn2023
fixed
python3-perf6.12
Amazon Linux 2023
1:6.12.83-113.160.amzn2023
fixed
python3-perf6.12-debuginfo
Amazon Linux 2023
1:6.12.83-113.160.amzn2023
fixed
python3-perf6.18
Amazon Linux 2023
1:6.18.25-55.108.amzn2023
fixed
python3-perf6.18-debuginfo
Amazon Linux 2023
1:6.18.25-55.108.amzn2023
fixed
Azure Linux logo
Azure Linux Releases
Azure Package
Release
kernel
Azure Linux 3.0
0:6.6.137.1-1.azl3
fixed