Memory leak in Linux kernel - CVE-2021-47345

Vulnerability identifier: #VU89963

CSH Severity: Low

CVSS v4 BT: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-47345

CWE-ID: CWE-401

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to memory leak within the cma_resolve_ib_route() function in drivers/infiniband/core/cma.c. A local user can perform a denial of service (DoS) attack.

Linux kernel
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Software Development Kit 12
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise High Availability Extension 12
SUSE Linux Enterprise Real Time 12
SUSE Linux Enterprise Live Patching
SUSE Linux Enterprise Workstation Extension 12
Ubuntu
openEuler
kgraft-patch-4_12_14-122_219-default
linux (Ubuntu package)
linux-fips (Ubuntu package)
linux-aws (Ubuntu package)
kernel-rt_debug-debuginfo
kernel-rt_debug
kernel-rt
kernel-source-rt
kernel-devel-rt
kernel-rt_debug-devel
dlm-kmp-rt
ocfs2-kmp-rt
kernel-rt-base-debuginfo
kernel-rt-devel-debuginfo
gfs2-kmp-rt-debuginfo
kernel-rt-devel
kernel-rt-debugsource
kernel-rt_debug-debugsource
cluster-md-kmp-rt-debuginfo
dlm-kmp-rt-debuginfo
cluster-md-kmp-rt
kernel-rt_debug-devel-debuginfo
kernel-syms-rt
ocfs2-kmp-rt-debuginfo
kernel-rt-base
gfs2-kmp-rt
kernel-rt-debuginfo
kernel-azure-base
kernel-azure
kernel-syms-azure
kernel-azure-debuginfo
kernel-azure-devel
kernel-azure-base-debuginfo
kernel-azure-debugsource
kernel-devel-azure
kernel-source-azure
kernel-default-extra
kernel-default-extra-debuginfo
kernel-default-man
kernel-obs-build-debugsource
kernel-obs-build
kernel-docs
kernel-default-debuginfo
kernel-default-kgraft
kernel-default-base-debuginfo
kernel-default-base
ocfs2-kmp-default
gfs2-kmp-default-debuginfo
dlm-kmp-default-debuginfo
kernel-syms
cluster-md-kmp-default
kernel-default-debugsource
dlm-kmp-default
kernel-default-devel
ocfs2-kmp-default-debuginfo
kernel-default-kgraft-devel
kernel-default-devel-debuginfo
kernel-devel
kernel-source
kernel-macros
kernel-default
gfs2-kmp-default
cluster-md-kmp-default-debuginfo
python3-perf-debuginfo
python3-perf
python2-perf-debuginfo
python2-perf
perf-debuginfo
perf
kernel-tools-devel
kernel-tools-debuginfo
kernel-tools
kernel-debugsource
kernel-debuginfo
bpftool-debuginfo
bpftool
kernel
Dell Secure Connect Gateway

Install update from vendor's website.

Linux kernel - addressed in versions 4.4.276, 4.9.276, 4.14.240, 4.19.198, 5.4.133, 5.10.51, 5.12.18, 5.13.3, 5.14
kgraft-patch-4_12_14-122_219-default - update to 1-8.3.1
linux (Ubuntu package) - addressed in versions 4.4.0.272.278, 4.4.0-272.306, 4.4.0.272.306~14.04.1, 4.4.0-272.306~14.04.1, 4.4.0.1147.144, 4.4.0-1147.153, 4.4.0.1148.145, 4.4.0-1148.159
linux-fips (Ubuntu package) - addressed in versions 4.4.0.1117.118, 4.4.0-1117.124
linux-aws (Ubuntu package) - addressed in versions 4.4.0.1185.189, 4.4.0-1185.200
kernel-rt_debug-debuginfo - update to 4.12.14-10.188.1
kernel-rt_debug - update to 4.12.14-10.188.1
kernel-rt - update to 4.12.14-10.188.1
kernel-source-rt - update to 4.12.14-10.188.1
kernel-devel-rt - update to 4.12.14-10.188.1
kernel-rt_debug-devel - update to 4.12.14-10.188.1
dlm-kmp-rt - update to 4.12.14-10.188.1
ocfs2-kmp-rt - update to 4.12.14-10.188.1
kernel-rt-base-debuginfo - update to 4.12.14-10.188.1
kernel-rt-devel-debuginfo - update to 4.12.14-10.188.1
gfs2-kmp-rt-debuginfo - update to 4.12.14-10.188.1
kernel-rt-devel - update to 4.12.14-10.188.1
kernel-rt-debugsource - update to 4.12.14-10.188.1
kernel-rt_debug-debugsource - update to 4.12.14-10.188.1
cluster-md-kmp-rt-debuginfo - update to 4.12.14-10.188.1
dlm-kmp-rt-debuginfo - update to 4.12.14-10.188.1
cluster-md-kmp-rt - update to 4.12.14-10.188.1
kernel-rt_debug-devel-debuginfo - update to 4.12.14-10.188.1
kernel-syms-rt - update to 4.12.14-10.188.1
ocfs2-kmp-rt-debuginfo - update to 4.12.14-10.188.1
kernel-rt-base - update to 4.12.14-10.188.1
gfs2-kmp-rt - update to 4.12.14-10.188.1
kernel-rt-debuginfo - update to 4.12.14-10.188.1
kernel-azure-base - update to 4.12.14-16.188.1
kernel-azure - update to 4.12.14-16.188.1
kernel-syms-azure - update to 4.12.14-16.188.1
kernel-azure-debuginfo - update to 4.12.14-16.188.1
kernel-azure-devel - update to 4.12.14-16.188.1
kernel-azure-base-debuginfo - update to 4.12.14-16.188.1
kernel-azure-debugsource - update to 4.12.14-16.188.1
kernel-devel-azure - update to 4.12.14-16.188.1
kernel-source-azure - update to 4.12.14-16.188.1
kernel-default-extra - update to 4.12.14-122.219.1
kernel-default-extra-debuginfo - update to 4.12.14-122.219.1
kernel-default-man - update to 4.12.14-122.219.1
kernel-obs-build-debugsource - update to 4.12.14-122.219.1
kernel-obs-build - update to 4.12.14-122.219.1
kernel-docs - update to 4.12.14-122.219.1
kernel-default-debuginfo - update to 4.12.14-122.219.1
kernel-default-kgraft - update to 4.12.14-122.219.1
kernel-default-base-debuginfo - update to 4.12.14-122.219.1
kernel-default-base - update to 4.12.14-122.219.1
ocfs2-kmp-default - update to 4.12.14-122.219.1
gfs2-kmp-default-debuginfo - update to 4.12.14-122.219.1
dlm-kmp-default-debuginfo - update to 4.12.14-122.219.1
kernel-syms - update to 4.12.14-122.219.1
cluster-md-kmp-default - update to 4.12.14-122.219.1
kernel-default-debugsource - update to 4.12.14-122.219.1
dlm-kmp-default - update to 4.12.14-122.219.1
kernel-default-devel - update to 4.12.14-122.219.1
ocfs2-kmp-default-debuginfo - update to 4.12.14-122.219.1
kernel-default-kgraft-devel - update to 4.12.14-122.219.1
kernel-default-devel-debuginfo - update to 4.12.14-122.219.1
kernel-devel - update to 4.12.14-122.219.1
kernel-source - update to 4.12.14-122.219.1
kernel-macros - update to 4.12.14-122.219.1
kernel-default - update to 4.12.14-122.219.1
gfs2-kmp-default - update to 4.12.14-122.219.1
cluster-md-kmp-default-debuginfo - update to 4.12.14-122.219.1
python3-perf-debuginfo - update to 4.19.90-2606.3.0.0376
python3-perf - update to 4.19.90-2606.3.0.0376
python2-perf-debuginfo - update to 4.19.90-2606.3.0.0376
python2-perf - update to 4.19.90-2606.3.0.0376
perf-debuginfo - update to 4.19.90-2606.3.0.0376
perf - update to 4.19.90-2606.3.0.0376
kernel-tools-devel - update to 4.19.90-2606.3.0.0376
kernel-tools-debuginfo - update to 4.19.90-2606.3.0.0376
kernel-tools - update to 4.19.90-2606.3.0.0376
kernel-source - update to 4.19.90-2606.3.0.0376
kernel-devel - update to 4.19.90-2606.3.0.0376
kernel-debugsource - update to 4.19.90-2606.3.0.0376
kernel-debuginfo - update to 4.19.90-2606.3.0.0376
bpftool-debuginfo - update to 4.19.90-2606.3.0.0376
bpftool - update to 4.19.90-2606.3.0.0376
kernel - update to 4.19.90-2606.3.0.0376
Dell Secure Connect Gateway - update to 5.26.00.18

• https://git.kernel.org/stable/c/40b613db3a95bc27998e4097d74c2f7e5d083a0b
• https://git.kernel.org/stable/c/e2da8ce2a9543f3ca5c93369bd1fe6eeb572101a
• https://git.kernel.org/stable/c/e4e062da082a199357ba4911145f331d40139ad8
• https://git.kernel.org/stable/c/4893c938f2a140a74be91779e45e4a7fa111198f
• https://git.kernel.org/stable/c/032c68b4f5be128a2167f35b558b7cec88fe4972
• https://git.kernel.org/stable/c/3d08b5917984f737f32d5bee9737b9075c3895c6
• https://git.kernel.org/stable/c/f4f553d67236145fa5fd203ed7b35b9377e19939
• https://git.kernel.org/stable/c/07583ba2e2d8947c3d365d97608cb436510885ac
• https://git.kernel.org/stable/c/74f160ead74bfe5f2b38afb4fcf86189f9ff40c9
• https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.240
• https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.198
• https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.276
• https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.276
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.51
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.18
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.3
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.133

• Memory leak in Linux kernel core driver
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• Multiple vulnerabilities in Dell Secure Connect Gateway
• Ubuntu update for linux-fips
• Ubuntu update for linux
• Ubuntu update for linux-aws
• openEuler 20.03 LTS SP4 update for kernel