NULL pointer dereference in Linux kernel - CVE-2021-47149

Vulnerability identifier: #VU90620

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-2021-47149

CWE-ID: CWE-476

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 NULL pointer dereference within the fmvj18x_get_hwinfo() function in drivers/net/ethernet/fujitsu/fmvj18x_cs.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
Dell Data Protection Central
PowerProtect DP Series Appliance (IDPA)
kgraft-patch-4_12_14-122_212-default
linux (Ubuntu package)
linux-aws (Ubuntu package)
linux-fips (Ubuntu package)
gfs2-kmp-rt
kernel-rt-devel
cluster-md-kmp-rt-debuginfo
kernel-rt_debug-debuginfo
kernel-rt-base
dlm-kmp-rt
ocfs2-kmp-rt
kernel-rt_debug-debugsource
kernel-syms-rt
kernel-rt-devel-debuginfo
kernel-rt-base-debuginfo
gfs2-kmp-rt-debuginfo
cluster-md-kmp-rt
kernel-rt-debugsource
kernel-rt-debuginfo
dlm-kmp-rt-debuginfo
ocfs2-kmp-rt-debuginfo
kernel-rt_debug-devel-debuginfo
kernel-rt_debug-devel
kernel-devel-rt
kernel-source-rt
kernel-rt_debug
kernel-rt
kernel-azure-devel
kernel-azure
kernel-azure-base-debuginfo
kernel-syms-azure
kernel-azure-debuginfo
kernel-azure-debugsource
kernel-source-azure
kernel-devel-azure
kernel-azure-base
dlm-kmp-default
kernel-default-devel-debuginfo
ocfs2-kmp-default-debuginfo
kernel-default-debugsource
gfs2-kmp-default-debuginfo
gfs2-kmp-default
dlm-kmp-default-debuginfo
kernel-default-base-debuginfo
kernel-default-debuginfo
kernel-default-extra-debuginfo
kernel-default-extra
kernel-default-man
kernel-obs-build-debugsource
kernel-obs-build
kernel-docs
kernel-default-kgraft
kernel-default-kgraft-devel
kernel-macros
kernel-default-devel
kernel-default-base
kernel-syms
ocfs2-kmp-default
cluster-md-kmp-default-debuginfo
cluster-md-kmp-default
kernel-default
kernel-source
kernel-devel
kernel
python3-perf-debuginfo
bpftool
perf
python2-perf-debuginfo
kernel-debugsource
kernel-tools-debuginfo
python3-perf
bpftool-debuginfo
python2-perf
kernel-debuginfo
kernel-tools-devel
kernel-tools
perf-debuginfo

Install update from vendor's website.

Linux kernel - addressed in versions 4.4.271, 4.9.271, 4.14.235, 4.19.193, 5.4.124, 5.10.42, 5.12.9, 5.13
kgraft-patch-4_12_14-122_212-default - update to 1-8.11.1
linux (Ubuntu package) - addressed in versions 4.4.0.273.279, 4.4.0-273.307, 4.4.0.1149.146, 4.4.0-1149.160
linux-aws (Ubuntu package) - addressed in versions 4.4.0-273.307~14.04.1, 4.4.0.1148.145, 4.4.0-1148.154, 4.4.0.1186.190, 4.4.0-1186.201
linux-fips (Ubuntu package) - addressed in versions 4.4.0.1119.120, 4.4.0-1119.126
gfs2-kmp-rt - update to 4.12.14-10.182.1
kernel-rt-devel - update to 4.12.14-10.182.1
cluster-md-kmp-rt-debuginfo - update to 4.12.14-10.182.1
kernel-rt_debug-debuginfo - update to 4.12.14-10.182.1
kernel-rt-base - update to 4.12.14-10.182.1
dlm-kmp-rt - update to 4.12.14-10.182.1
ocfs2-kmp-rt - update to 4.12.14-10.182.1
kernel-rt_debug-debugsource - update to 4.12.14-10.182.1
kernel-syms-rt - update to 4.12.14-10.182.1
kernel-rt-devel-debuginfo - update to 4.12.14-10.182.1
kernel-rt-base-debuginfo - update to 4.12.14-10.182.1
gfs2-kmp-rt-debuginfo - update to 4.12.14-10.182.1
cluster-md-kmp-rt - update to 4.12.14-10.182.1
kernel-rt-debugsource - update to 4.12.14-10.182.1
kernel-rt-debuginfo - update to 4.12.14-10.182.1
dlm-kmp-rt-debuginfo - update to 4.12.14-10.182.1
ocfs2-kmp-rt-debuginfo - update to 4.12.14-10.182.1
kernel-rt_debug-devel-debuginfo - update to 4.12.14-10.182.1
kernel-rt_debug-devel - update to 4.12.14-10.182.1
kernel-devel-rt - update to 4.12.14-10.182.1
kernel-source-rt - update to 4.12.14-10.182.1
kernel-rt_debug - update to 4.12.14-10.182.1
kernel-rt - update to 4.12.14-10.182.1
kernel-azure-devel - update to 4.12.14-16.182.1
kernel-azure - update to 4.12.14-16.182.1
kernel-azure-base-debuginfo - update to 4.12.14-16.182.1
kernel-syms-azure - update to 4.12.14-16.182.1
kernel-azure-debuginfo - update to 4.12.14-16.182.1
kernel-azure-debugsource - update to 4.12.14-16.182.1
kernel-source-azure - update to 4.12.14-16.182.1
kernel-devel-azure - update to 4.12.14-16.182.1
kernel-azure-base - update to 4.12.14-16.182.1
dlm-kmp-default - update to 4.12.14-122.212.1
kernel-default-devel-debuginfo - update to 4.12.14-122.212.1
ocfs2-kmp-default-debuginfo - update to 4.12.14-122.212.1
kernel-default-debugsource - update to 4.12.14-122.212.1
gfs2-kmp-default-debuginfo - update to 4.12.14-122.212.1
gfs2-kmp-default - update to 4.12.14-122.212.1
dlm-kmp-default-debuginfo - update to 4.12.14-122.212.1
kernel-default-base-debuginfo - update to 4.12.14-122.212.1
kernel-default-debuginfo - update to 4.12.14-122.212.1
kernel-default-extra-debuginfo - update to 4.12.14-122.212.1
kernel-default-extra - update to 4.12.14-122.212.1
kernel-default-man - update to 4.12.14-122.212.1
kernel-obs-build-debugsource - update to 4.12.14-122.212.1
kernel-obs-build - update to 4.12.14-122.212.1
kernel-docs - update to 4.12.14-122.212.1
kernel-default-kgraft - update to 4.12.14-122.212.1
kernel-default-kgraft-devel - update to 4.12.14-122.212.1
kernel-macros - update to 4.12.14-122.212.1
kernel-default-devel - update to 4.12.14-122.212.1
kernel-default-base - update to 4.12.14-122.212.1
kernel-syms - update to 4.12.14-122.212.1
ocfs2-kmp-default - update to 4.12.14-122.212.1
cluster-md-kmp-default-debuginfo - update to 4.12.14-122.212.1
cluster-md-kmp-default - update to 4.12.14-122.212.1
kernel-default - update to 4.12.14-122.212.1
kernel-source - update to 4.12.14-122.212.1
kernel-devel - update to 4.12.14-122.212.1
kernel - addressed in versions 4.19.90-2405.1.0.0248, 4.19.90-2405.1.0.0275
python3-perf-debuginfo - addressed in versions 4.19.90-2405.1.0.0248, 4.19.90-2405.1.0.0275
kernel-devel - addressed in versions 4.19.90-2405.1.0.0248, 4.19.90-2405.1.0.0275
bpftool - addressed in versions 4.19.90-2405.1.0.0248, 4.19.90-2405.1.0.0275
perf - addressed in versions 4.19.90-2405.1.0.0248, 4.19.90-2405.1.0.0275
python2-perf-debuginfo - addressed in versions 4.19.90-2405.1.0.0248, 4.19.90-2405.1.0.0275
kernel-debugsource - addressed in versions 4.19.90-2405.1.0.0248, 4.19.90-2405.1.0.0275
kernel-tools-debuginfo - addressed in versions 4.19.90-2405.1.0.0248, 4.19.90-2405.1.0.0275
python3-perf - addressed in versions 4.19.90-2405.1.0.0248, 4.19.90-2405.1.0.0275
bpftool-debuginfo - addressed in versions 4.19.90-2405.1.0.0248, 4.19.90-2405.1.0.0275
python2-perf - addressed in versions 4.19.90-2405.1.0.0248, 4.19.90-2405.1.0.0275
kernel-debuginfo - addressed in versions 4.19.90-2405.1.0.0248, 4.19.90-2405.1.0.0275
kernel-tools-devel - addressed in versions 4.19.90-2405.1.0.0248, 4.19.90-2405.1.0.0275
kernel-tools - addressed in versions 4.19.90-2405.1.0.0248, 4.19.90-2405.1.0.0275
perf-debuginfo - addressed in versions 4.19.90-2405.1.0.0248, 4.19.90-2405.1.0.0275
kernel-source - addressed in versions 4.19.90-2405.1.0.0248, 4.19.90-2405.1.0.0275

• https://git.kernel.org/stable/c/b92170e209f7746ed72eaac98f2c2f4b9af734e6
• https://git.kernel.org/stable/c/6dbf1101594f7c76990b63c35b5a40205a914b6b
• https://git.kernel.org/stable/c/c4f1c23edbe921ab2ecd6140d700e756cd44c5f7
• https://git.kernel.org/stable/c/7883d3895d0fbb0ba9bff0f8665f99974b45210f
• https://git.kernel.org/stable/c/22049c3d40f08facd1867548716a484dad6b3251
• https://git.kernel.org/stable/c/71723a796ab7881f491d663c6cd94b29be5fba50
• https://git.kernel.org/stable/c/f14bf57a08779a5dee9936f63ada0149ea89c5e6
• https://git.kernel.org/stable/c/52202be1cd996cde6e8969a128dc27ee45a7cb5e
• https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.235
• https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.193
• https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.271
• https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.271
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.42
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.9
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.124

• NULL pointer dereference in Linux kernel ethernet fujitsu driver
• openEuler 20.03 LTS SP4 update for kernel
• openEuler 20.03 LTS SP1 update for kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• Multiple vulnerabilities in Dell Data Protection Central
• Ubuntu update for linux
• Ubuntu update for linux-aws
• Ubuntu update for linux-aws
• Ubuntu update for linux-fips