CVE-2026-46185

EUVD-2026-32812
In the Linux kernel, the following vulnerability has been resolved:

smb/client: fix out-of-bounds read in symlink_data()

Since smb2_check_message() returns success without length validation for
the symlink error response, in symlink_data() it is possible for
iov->iov_len to be smaller than sizeof(struct smb2_err_rsp). If the buffer
only contains the base SMB2 header (64 bytes), accessing
err->ErrorContextCount (at offset 66) or err->ByteCount later in
symlink_data() will cause an out-of-bounds read.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.1 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 40%
Affected Products (NVD)
VendorProductVersion
linuxlinux_kernel
6.0.16 ≤
𝑥
< 6.1.175
linuxlinux_kernel
6.2 ≤
𝑥
< 6.6.140
linuxlinux_kernel
6.7 ≤
𝑥
< 6.12.88
linuxlinux_kernel
6.13 ≤
𝑥
< 6.18.30
linuxlinux_kernel
6.19 ≤
𝑥
< 7.0.7
linuxlinux_kernel
7.1:rc1
linuxlinux_kernel
7.1:rc2
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
linux
bookworm
6.1.176-1
fixed
bookworm (security)
6.1.176-1
fixed
bullseye
5.10.223-1
fixed
bullseye (security)
5.10.259-1
fixed
forky
7.1.3-1
fixed
sid
7.1.3-1
fixed
trixie
6.12.94-1
fixed
trixie (security)
6.12.95-1
fixed
linux-6.1
bullseye (security)
6.1.176-1~deb11u1
fixed
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
kernel-64kb
suse enterprise desktop 15 SP7
6.4.0-150700.53.66.1
fixed
suse enterprise sap 15 SP7
6.4.0-150700.53.66.1
fixed
suse enterprise server 15 SP7
6.4.0-150700.53.66.1
fixed
kernel-default
suse enterprise desktop 15 SP7
6.4.0-150700.53.66.1
fixed
suse enterprise sap 15 SP7
6.4.0-150700.53.66.1
fixed
suse enterprise server 15 SP7
6.4.0-150700.53.66.1
fixed
kernel-default-base
suse enterprise desktop 15 SP7
6.4.0-150700.53.66.1.150700.17.39.1
fixed
suse enterprise sap 15 SP7
6.4.0-150700.53.66.1.150700.17.39.1
fixed
suse enterprise server 15 SP7
6.4.0-150700.53.66.1.150700.17.39.1
fixed
kernel-obs-build
suse enterprise desktop 15 SP7
6.4.0-150700.53.66.1
fixed
suse enterprise sap 15 SP7
6.4.0-150700.53.66.1
fixed
suse enterprise server 15 SP7
6.4.0-150700.53.66.1
fixed
kernel-source
suse enterprise desktop 15 SP7
6.4.0-150700.53.66.1
fixed
suse enterprise sap 15 SP7
6.4.0-150700.53.66.1
fixed
suse enterprise server 15 SP7
6.4.0-150700.53.66.1
fixed
kernel-zfcpdump
suse enterprise desktop 15 SP7
6.4.0-150700.53.66.1
fixed
suse enterprise sap 15 SP7
6.4.0-150700.53.66.1
fixed
suse enterprise server 15 SP7
6.4.0-150700.53.66.1
fixed
Amazon Linux logo
Amazon Linux Releases
Amazon Package
Release
bpftool
Amazon Linux 2023
1:6.1.175-219.357.amzn2023
fixed
bpftool-debuginfo
Amazon Linux 2023
1:6.1.175-219.357.amzn2023
fixed
bpftool6.12
Amazon Linux 2023
1:6.12.88-119.157.amzn2023
fixed
bpftool6.12-debuginfo
Amazon Linux 2023
1:6.12.88-119.157.amzn2023
fixed
bpftool6.18
Amazon Linux 2023
1:6.18.30-61.116.amzn2023
fixed
bpftool6.18-debuginfo
Amazon Linux 2023
1:6.18.30-61.116.amzn2023
fixed
kernel
Amazon Linux 2023
1:6.1.175-219.357.amzn2023
fixed
kernel-debuginfo
Amazon Linux 2023
1:6.1.175-219.357.amzn2023
fixed
kernel-debuginfo-common-aarch64
Amazon Linux 2023
1:6.1.175-219.357.amzn2023
fixed
kernel-debuginfo-common-x86_64
Amazon Linux 2023
1:6.1.175-219.357.amzn2023
fixed
kernel-devel
Amazon Linux 2023
1:6.1.175-219.357.amzn2023
fixed
kernel-headers
Amazon Linux 2023
1:6.1.175-219.357.amzn2023
fixed
kernel-livepatch-6.1.175-219.357
Amazon Linux 2023
1:1.0-0.amzn2023
fixed
kernel-livepatch-6.12.88-119.157
Amazon Linux 2023
1:1.0-0.amzn2023
fixed
kernel-livepatch-6.18.30-61.116
Amazon Linux 2023
1:1.0-0.amzn2023
fixed
kernel-modules-extra
Amazon Linux 2023
1:6.1.175-219.357.amzn2023
fixed
kernel-modules-extra-common
Amazon Linux 2023
1:6.1.175-219.357.amzn2023
fixed
kernel-tools
Amazon Linux 2023
1:6.1.175-219.357.amzn2023
fixed
kernel-tools-debuginfo
Amazon Linux 2023
1:6.1.175-219.357.amzn2023
fixed
kernel-tools-devel
Amazon Linux 2023
1:6.1.175-219.357.amzn2023
fixed
kernel6.12
Amazon Linux 2023
1:6.12.88-119.157.amzn2023
fixed
kernel6.12-debuginfo
Amazon Linux 2023
1:6.12.88-119.157.amzn2023
fixed
kernel6.12-debuginfo-common-aarch64
Amazon Linux 2023
1:6.12.88-119.157.amzn2023
fixed
kernel6.12-debuginfo-common-x86_64
Amazon Linux 2023
1:6.12.88-119.157.amzn2023
fixed
kernel6.12-devel
Amazon Linux 2023
1:6.12.88-119.157.amzn2023
fixed
kernel6.12-headers
Amazon Linux 2023
1:6.12.88-119.157.amzn2023
fixed
kernel6.12-modules-extra
Amazon Linux 2023
1:6.12.88-119.157.amzn2023
fixed
kernel6.12-modules-extra-common
Amazon Linux 2023
1:6.12.88-119.157.amzn2023
fixed
kernel6.12-tools
Amazon Linux 2023
1:6.12.88-119.157.amzn2023
fixed
kernel6.12-tools-debuginfo
Amazon Linux 2023
1:6.12.88-119.157.amzn2023
fixed
kernel6.12-tools-devel
Amazon Linux 2023
1:6.12.88-119.157.amzn2023
fixed
kernel6.18
Amazon Linux 2023
1:6.18.30-61.116.amzn2023
fixed
kernel6.18-debuginfo
Amazon Linux 2023
1:6.18.30-61.116.amzn2023
fixed
kernel6.18-debuginfo-common-aarch64
Amazon Linux 2023
1:6.18.30-61.116.amzn2023
fixed
kernel6.18-debuginfo-common-x86_64
Amazon Linux 2023
1:6.18.30-61.116.amzn2023
fixed
kernel6.18-devel
Amazon Linux 2023
1:6.18.30-61.116.amzn2023
fixed
kernel6.18-headers
Amazon Linux 2023
1:6.18.30-61.116.amzn2023
fixed
kernel6.18-modules-extra
Amazon Linux 2023
1:6.18.30-61.116.amzn2023
fixed
kernel6.18-modules-extra-common
Amazon Linux 2023
1:6.18.30-61.116.amzn2023
fixed
kernel6.18-tools
Amazon Linux 2023
1:6.18.30-61.116.amzn2023
fixed
kernel6.18-tools-debuginfo
Amazon Linux 2023
1:6.18.30-61.116.amzn2023
fixed
kernel6.18-tools-devel
Amazon Linux 2023
1:6.18.30-61.116.amzn2023
fixed
perf
Amazon Linux 2023
1:6.1.175-219.357.amzn2023
fixed
perf-debuginfo
Amazon Linux 2023
1:6.1.175-219.357.amzn2023
fixed
perf6.12
Amazon Linux 2023
1:6.12.88-119.157.amzn2023
fixed
perf6.12-debuginfo
Amazon Linux 2023
1:6.12.88-119.157.amzn2023
fixed
perf6.18
Amazon Linux 2023
1:6.18.30-61.116.amzn2023
fixed
perf6.18-debuginfo
Amazon Linux 2023
1:6.18.30-61.116.amzn2023
fixed
python3-perf
Amazon Linux 2023
1:6.1.175-219.357.amzn2023
fixed
python3-perf-debuginfo
Amazon Linux 2023
1:6.1.175-219.357.amzn2023
fixed
python3-perf6.12
Amazon Linux 2023
1:6.12.88-119.157.amzn2023
fixed
python3-perf6.12-debuginfo
Amazon Linux 2023
1:6.12.88-119.157.amzn2023
fixed
python3-perf6.18
Amazon Linux 2023
1:6.18.30-61.116.amzn2023
fixed
python3-perf6.18-debuginfo
Amazon Linux 2023
1:6.18.30-61.116.amzn2023
fixed
Azure Linux logo
Azure Linux Releases
Azure Package
Release
kernel
Azure Linux 3.0
0:6.6.141.1-1.azl3
fixed