Input validation error in Linux kernel - CVE-2021-47265

Vulnerability identifier: #VU93174

CSH Severity: Low

CVSS v4: 6.8 [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]

CVE-ID: CVE-2021-47265

CWE-ID: CWE-20

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 improper input validation within the mlx5_ib_create_flow() function in drivers/infiniband/hw/mlx5/fs.c, within the mlx4_ib_create_flow() function in drivers/infiniband/hw/mlx4/main.c, within the ib_uverbs_ex_create_flow() function in drivers/infiniband/core/uverbs_cmd.c. A local user can perform a denial of service (DoS) attack.

Linux kernel
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise High Availability Extension 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server for SAP Applications 15
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 Manager Proxy
SUSE Manager Retail Branch Server
SUSE Manager Server
SUSE Linux Enterprise Micro
SUSE Linux Enterprise Micro for Rancher
SUSE Enterprise Storage
SUSE Linux Enterprise Workstation Extension 12
SUSE Linux Enterprise Live Patching
SUSE Linux Enterprise Server 15 SP3 Business Critical Linux
SUSE Linux Enterprise Server 15 SP3 LTSS
openSUSE Leap
openEuler
kgraft-patch-4_12_14-122_219-default
kernel-livepatch-SLE15-SP3_Update_45-debugsource
kernel-livepatch-5_3_18-150300_59_164-default
kernel-livepatch-5_3_18-150300_59_164-default-debuginfo
kernel-livepatch-5_3_18-150300_59_164-preempt-debuginfo
kernel-livepatch-5_3_18-150300_59_164-preempt
kernel-rt-devel
kernel-rt_debug
gfs2-kmp-rt-debuginfo
kernel-rt-base-debuginfo
ocfs2-kmp-rt
dlm-kmp-rt
kernel-rt_debug-debuginfo
kernel-rt_debug-devel
kernel-devel-rt
kernel-source-rt
kernel-rt
kernel-rt-base
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
gfs2-kmp-rt
kernel-rt-debuginfo
kernel-rt-devel-debuginfo
kernel-azure-base
kernel-syms-azure
kernel-azure-debuginfo
kernel-azure-devel
kernel-azure-base-debuginfo
kernel-azure-debugsource
kernel-devel-azure
kernel-source-azure
kernel-azure
kernel-macros
ocfs2-kmp-default
kernel-source
kernel-devel
kernel-default-devel-debuginfo
kernel-default-kgraft
kernel-default-kgraft-devel
kernel-docs
kernel-obs-build
kernel-obs-build-debugsource
kernel-default-man
kernel-default-extra-debuginfo
kernel-default-extra
kernel-default
gfs2-kmp-default
kernel-default-debuginfo
ocfs2-kmp-default-debuginfo
cluster-md-kmp-default-debuginfo
kernel-default-devel
dlm-kmp-default
kernel-default-debugsource
cluster-md-kmp-default
kernel-syms
kernel-default-base-debuginfo
kernel-default-base
gfs2-kmp-default-debuginfo
dlm-kmp-default-debuginfo
python2-perf
kernel
bpftool
python3-perf
kernel-debugsource
bpftool-debuginfo
kernel-tools-devel
perf-debuginfo
perf
kernel-debuginfo
python3-perf-debuginfo
kernel-tools
python2-perf-debuginfo
kernel-tools-debuginfo
kernel-zfcpdump-debuginfo
gfs2-kmp-preempt-debuginfo
cluster-md-kmp-preempt
kernel-preempt
kernel-zfcpdump
kernel-zfcpdump-debugsource
ocfs2-kmp-preempt
dtb-aarch64
dtb-rockchip
dtb-sprd
dtb-hisilicon
dtb-arm
kernel-64kb-debugsource
kernel-64kb-livepatch-devel
dtb-exynos
kernel-preempt-devel
cluster-md-kmp-preempt-debuginfo
kernel-preempt-debuginfo
reiserfs-kmp-preempt-debuginfo
kernel-preempt-optional
kernel-preempt-extra
dlm-kmp-preempt
kernel-preempt-devel-debuginfo
kernel-preempt-optional-debuginfo
kselftests-kmp-preempt
kernel-preempt-livepatch-devel
reiserfs-kmp-preempt
ocfs2-kmp-preempt-debuginfo
dlm-kmp-preempt-debuginfo
kernel-preempt-extra-debuginfo
gfs2-kmp-preempt
kernel-preempt-debugsource
kselftests-kmp-preempt-debuginfo
dtb-cavium
cluster-md-kmp-64kb-debuginfo
gfs2-kmp-64kb-debuginfo
kernel-64kb-extra
cluster-md-kmp-64kb
reiserfs-kmp-64kb-debuginfo
dtb-xilinx
dtb-renesas
kselftests-kmp-64kb-debuginfo
kernel-debug-devel
dtb-nvidia
kernel-64kb-devel
gfs2-kmp-64kb
dlm-kmp-64kb
kselftests-kmp-64kb
ocfs2-kmp-64kb
kernel-64kb-debuginfo
dtb-zte
dtb-broadcom
dtb-altera
dlm-kmp-64kb-debuginfo
dtb-freescale
kernel-64kb-optional
ocfs2-kmp-64kb-debuginfo
dtb-apm
dtb-mediatek
dtb-socionext
kernel-64kb-optional-debuginfo
kernel-64kb-devel-debuginfo
dtb-amd
reiserfs-kmp-64kb
dtb-qcom
dtb-marvell
kernel-64kb
dtb-allwinner
dtb-lg
dtb-al
kernel-64kb-extra-debuginfo
dtb-amlogic
kernel-kvmsmall-debugsource
kernel-kvmsmall-debuginfo
kernel-kvmsmall-livepatch-devel
kernel-kvmsmall-devel-debuginfo
kernel-debug-devel-debuginfo
kernel-debug-debuginfo
kernel-debug-debugsource
kernel-obs-qa
kernel-debug-livepatch-devel
kernel-kvmsmall-devel
kernel-debug
kernel-kvmsmall
kernel-docs-html
kernel-source-vanilla
reiserfs-kmp-default-debuginfo
reiserfs-kmp-default
kselftests-kmp-default-debuginfo
kernel-default-optional-debuginfo
kselftests-kmp-default
kernel-default-livepatch
kernel-default-livepatch-devel
kernel-default-optional
kernel-default-base-rebuild
kernel-headers
Dell Secure Connect Gateway

Install update from vendor's website.

Linux kernel - addressed in versions 5.12.11, 5.13
kgraft-patch-4_12_14-122_219-default - update to 1-8.3.1
kernel-livepatch-SLE15-SP3_Update_45-debugsource - update to 1-150300.7.3.1
kernel-livepatch-5_3_18-150300_59_164-default - update to 1-150300.7.3.1
kernel-livepatch-5_3_18-150300_59_164-default-debuginfo - update to 1-150300.7.3.1
kernel-livepatch-5_3_18-150300_59_164-preempt-debuginfo - update to 1-150300.7.3.1
kernel-livepatch-5_3_18-150300_59_164-preempt - update to 1-150300.7.3.1
kernel-rt-devel - update to 4.12.14-10.188.1
kernel-rt_debug - update to 4.12.14-10.188.1
gfs2-kmp-rt-debuginfo - update to 4.12.14-10.188.1
kernel-rt-base-debuginfo - update to 4.12.14-10.188.1
ocfs2-kmp-rt - update to 4.12.14-10.188.1
dlm-kmp-rt - update to 4.12.14-10.188.1
kernel-rt_debug-debuginfo - update to 4.12.14-10.188.1
kernel-rt_debug-devel - update to 4.12.14-10.188.1
kernel-devel-rt - update to 4.12.14-10.188.1
kernel-source-rt - addressed in versions 4.12.14-10.188.1, 5.3.18-150300.172.1
kernel-rt - addressed in versions 4.12.14-10.188.1, 5.3.18-150300.172.1
kernel-rt-base - update to 4.12.14-10.188.1
kernel-rt-debugsource - addressed in versions 4.12.14-10.188.1, 5.3.18-150300.172.1
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
gfs2-kmp-rt - update to 4.12.14-10.188.1
kernel-rt-debuginfo - addressed in versions 4.12.14-10.188.1, 5.3.18-150300.172.1
kernel-rt-devel-debuginfo - update to 4.12.14-10.188.1
kernel-azure-base - 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-azure - update to 4.12.14-16.188.1
kernel-macros - addressed in versions 4.12.14-122.219.1, 5.3.18-150300.59.164.1
ocfs2-kmp-default - addressed in versions 4.12.14-122.219.1, 5.3.18-150300.59.164.1
kernel-source - addressed in versions 4.12.14-122.219.1, 5.3.18-150300.59.164.1
kernel-devel - addressed in versions 4.12.14-122.219.1, 5.3.18-150300.59.164.1
kernel-default-devel-debuginfo - addressed in versions 4.12.14-122.219.1, 5.3.18-150300.59.164.1
kernel-default-kgraft - update to 4.12.14-122.219.1
kernel-default-kgraft-devel - update to 4.12.14-122.219.1
kernel-docs - addressed in versions 4.12.14-122.219.1, 5.3.18-150300.59.164.1
kernel-obs-build - addressed in versions 4.12.14-122.219.1, 5.3.18-150300.59.164.1
kernel-obs-build-debugsource - addressed in versions 4.12.14-122.219.1, 5.3.18-150300.59.164.1
kernel-default-man - update to 4.12.14-122.219.1
kernel-default-extra-debuginfo - addressed in versions 4.12.14-122.219.1, 5.3.18-150300.59.164.1
kernel-default-extra - addressed in versions 4.12.14-122.219.1, 5.3.18-150300.59.164.1
kernel-default - addressed in versions 4.12.14-122.219.1, 5.3.18-150300.59.164.1
gfs2-kmp-default - addressed in versions 4.12.14-122.219.1, 5.3.18-150300.59.164.1
kernel-default-debuginfo - addressed in versions 4.12.14-122.219.1, 5.3.18-150300.59.164.1
ocfs2-kmp-default-debuginfo - addressed in versions 4.12.14-122.219.1, 5.3.18-150300.59.164.1
cluster-md-kmp-default-debuginfo - addressed in versions 4.12.14-122.219.1, 5.3.18-150300.59.164.1
kernel-default-devel - addressed in versions 4.12.14-122.219.1, 5.3.18-150300.59.164.1
dlm-kmp-default - addressed in versions 4.12.14-122.219.1, 5.3.18-150300.59.164.1
kernel-default-debugsource - addressed in versions 4.12.14-122.219.1, 5.3.18-150300.59.164.1
cluster-md-kmp-default - addressed in versions 4.12.14-122.219.1, 5.3.18-150300.59.164.1
kernel-syms - addressed in versions 4.12.14-122.219.1, 5.3.18-150300.59.164.1
kernel-default-base-debuginfo - update to 4.12.14-122.219.1
kernel-default-base - addressed in versions 4.12.14-122.219.1, 5.3.18-150300.59.164.1.150300.18.96.1
gfs2-kmp-default-debuginfo - addressed in versions 4.12.14-122.219.1, 5.3.18-150300.59.164.1
dlm-kmp-default-debuginfo - addressed in versions 4.12.14-122.219.1, 5.3.18-150300.59.164.1
python2-perf - update to 4.19.90-2406.1.0.0279
kernel - addressed in versions 4.19.90-2406.1.0.0279, 5.10.0-136.79.0.159, 5.10.0-202.0.0.115
bpftool - update to 4.19.90-2406.1.0.0279
kernel-source - addressed in versions 4.19.90-2406.1.0.0279, 5.10.0-136.79.0.159, 5.10.0-202.0.0.115
python3-perf - addressed in versions 4.19.90-2406.1.0.0279, 5.10.0-136.79.0.159, 5.10.0-202.0.0.115
kernel-debugsource - addressed in versions 4.19.90-2406.1.0.0279, 5.10.0-136.79.0.159, 5.10.0-202.0.0.115
bpftool-debuginfo - update to 4.19.90-2406.1.0.0279
kernel-tools-devel - addressed in versions 4.19.90-2406.1.0.0279, 5.10.0-136.79.0.159, 5.10.0-202.0.0.115
perf-debuginfo - addressed in versions 4.19.90-2406.1.0.0279, 5.10.0-136.79.0.159, 5.10.0-202.0.0.115
perf - addressed in versions 4.19.90-2406.1.0.0279, 5.10.0-136.79.0.159, 5.10.0-202.0.0.115
kernel-debuginfo - addressed in versions 4.19.90-2406.1.0.0279, 5.10.0-136.79.0.159, 5.10.0-202.0.0.115
python3-perf-debuginfo - addressed in versions 4.19.90-2406.1.0.0279, 5.10.0-136.79.0.159, 5.10.0-202.0.0.115
kernel-devel - addressed in versions 4.19.90-2406.1.0.0279, 5.10.0-136.79.0.159, 5.10.0-202.0.0.115
kernel-tools - addressed in versions 4.19.90-2406.1.0.0279, 5.10.0-136.79.0.159, 5.10.0-202.0.0.115
python2-perf-debuginfo - update to 4.19.90-2406.1.0.0279
kernel-tools-debuginfo - addressed in versions 4.19.90-2406.1.0.0279, 5.10.0-136.79.0.159, 5.10.0-202.0.0.115
kernel-zfcpdump-debuginfo - update to 5.3.18-150300.59.164.1
gfs2-kmp-preempt-debuginfo - update to 5.3.18-150300.59.164.1
cluster-md-kmp-preempt - update to 5.3.18-150300.59.164.1
kernel-preempt - update to 5.3.18-150300.59.164.1
kernel-zfcpdump - update to 5.3.18-150300.59.164.1
kernel-zfcpdump-debugsource - update to 5.3.18-150300.59.164.1
ocfs2-kmp-preempt - update to 5.3.18-150300.59.164.1
dtb-aarch64 - update to 5.3.18-150300.59.164.1
dtb-rockchip - update to 5.3.18-150300.59.164.1
dtb-sprd - update to 5.3.18-150300.59.164.1
dtb-hisilicon - update to 5.3.18-150300.59.164.1
dtb-arm - update to 5.3.18-150300.59.164.1
kernel-64kb-debugsource - update to 5.3.18-150300.59.164.1
kernel-64kb-livepatch-devel - update to 5.3.18-150300.59.164.1
dtb-exynos - update to 5.3.18-150300.59.164.1
kernel-preempt-devel - update to 5.3.18-150300.59.164.1
cluster-md-kmp-preempt-debuginfo - update to 5.3.18-150300.59.164.1
kernel-preempt-debuginfo - update to 5.3.18-150300.59.164.1
reiserfs-kmp-preempt-debuginfo - update to 5.3.18-150300.59.164.1
kernel-preempt-optional - update to 5.3.18-150300.59.164.1
kernel-preempt-extra - update to 5.3.18-150300.59.164.1
dlm-kmp-preempt - update to 5.3.18-150300.59.164.1
kernel-preempt-devel-debuginfo - update to 5.3.18-150300.59.164.1
kernel-preempt-optional-debuginfo - update to 5.3.18-150300.59.164.1
kselftests-kmp-preempt - update to 5.3.18-150300.59.164.1
kernel-preempt-livepatch-devel - update to 5.3.18-150300.59.164.1
reiserfs-kmp-preempt - update to 5.3.18-150300.59.164.1
ocfs2-kmp-preempt-debuginfo - update to 5.3.18-150300.59.164.1
dlm-kmp-preempt-debuginfo - update to 5.3.18-150300.59.164.1
kernel-preempt-extra-debuginfo - update to 5.3.18-150300.59.164.1
gfs2-kmp-preempt - update to 5.3.18-150300.59.164.1
kernel-preempt-debugsource - update to 5.3.18-150300.59.164.1
kselftests-kmp-preempt-debuginfo - update to 5.3.18-150300.59.164.1
dtb-cavium - update to 5.3.18-150300.59.164.1
cluster-md-kmp-64kb-debuginfo - update to 5.3.18-150300.59.164.1
gfs2-kmp-64kb-debuginfo - update to 5.3.18-150300.59.164.1
kernel-64kb-extra - update to 5.3.18-150300.59.164.1
cluster-md-kmp-64kb - update to 5.3.18-150300.59.164.1
reiserfs-kmp-64kb-debuginfo - update to 5.3.18-150300.59.164.1
dtb-xilinx - update to 5.3.18-150300.59.164.1
dtb-renesas - update to 5.3.18-150300.59.164.1
kselftests-kmp-64kb-debuginfo - update to 5.3.18-150300.59.164.1
kernel-debug-devel - update to 5.3.18-150300.59.164.1
dtb-nvidia - update to 5.3.18-150300.59.164.1
kernel-64kb-devel - update to 5.3.18-150300.59.164.1
gfs2-kmp-64kb - update to 5.3.18-150300.59.164.1
dlm-kmp-64kb - update to 5.3.18-150300.59.164.1
kselftests-kmp-64kb - update to 5.3.18-150300.59.164.1
ocfs2-kmp-64kb - update to 5.3.18-150300.59.164.1
kernel-64kb-debuginfo - update to 5.3.18-150300.59.164.1
dtb-zte - update to 5.3.18-150300.59.164.1
dtb-broadcom - update to 5.3.18-150300.59.164.1
dtb-altera - update to 5.3.18-150300.59.164.1
dlm-kmp-64kb-debuginfo - update to 5.3.18-150300.59.164.1
dtb-freescale - update to 5.3.18-150300.59.164.1
kernel-64kb-optional - update to 5.3.18-150300.59.164.1
ocfs2-kmp-64kb-debuginfo - update to 5.3.18-150300.59.164.1
dtb-apm - update to 5.3.18-150300.59.164.1
dtb-mediatek - update to 5.3.18-150300.59.164.1
dtb-socionext - update to 5.3.18-150300.59.164.1
kernel-64kb-optional-debuginfo - update to 5.3.18-150300.59.164.1
kernel-64kb-devel-debuginfo - update to 5.3.18-150300.59.164.1
dtb-amd - update to 5.3.18-150300.59.164.1
reiserfs-kmp-64kb - update to 5.3.18-150300.59.164.1
dtb-qcom - update to 5.3.18-150300.59.164.1
dtb-marvell - update to 5.3.18-150300.59.164.1
kernel-64kb - update to 5.3.18-150300.59.164.1
dtb-allwinner - update to 5.3.18-150300.59.164.1
dtb-lg - update to 5.3.18-150300.59.164.1
dtb-al - update to 5.3.18-150300.59.164.1
kernel-64kb-extra-debuginfo - update to 5.3.18-150300.59.164.1
dtb-amlogic - update to 5.3.18-150300.59.164.1
kernel-kvmsmall-debugsource - update to 5.3.18-150300.59.164.1
kernel-kvmsmall-debuginfo - update to 5.3.18-150300.59.164.1
kernel-kvmsmall-livepatch-devel - update to 5.3.18-150300.59.164.1
kernel-kvmsmall-devel-debuginfo - update to 5.3.18-150300.59.164.1
kernel-debug-devel-debuginfo - update to 5.3.18-150300.59.164.1
kernel-debug-debuginfo - update to 5.3.18-150300.59.164.1
kernel-debug-debugsource - update to 5.3.18-150300.59.164.1
kernel-obs-qa - update to 5.3.18-150300.59.164.1
kernel-debug-livepatch-devel - update to 5.3.18-150300.59.164.1
kernel-kvmsmall-devel - update to 5.3.18-150300.59.164.1
kernel-debug - update to 5.3.18-150300.59.164.1
kernel-kvmsmall - update to 5.3.18-150300.59.164.1
kernel-docs-html - update to 5.3.18-150300.59.164.1
kernel-source-vanilla - update to 5.3.18-150300.59.164.1
reiserfs-kmp-default-debuginfo - update to 5.3.18-150300.59.164.1
reiserfs-kmp-default - update to 5.3.18-150300.59.164.1
kselftests-kmp-default-debuginfo - update to 5.3.18-150300.59.164.1
kernel-default-optional-debuginfo - update to 5.3.18-150300.59.164.1
kselftests-kmp-default - update to 5.3.18-150300.59.164.1
kernel-default-livepatch - update to 5.3.18-150300.59.164.1
kernel-default-livepatch-devel - update to 5.3.18-150300.59.164.1
kernel-default-optional - update to 5.3.18-150300.59.164.1
kernel-default-base-rebuild - update to 5.3.18-150300.59.164.1.150300.18.96.1
kernel-headers - addressed in versions 5.10.0-136.79.0.159, 5.10.0-202.0.0.115
Dell Secure Connect Gateway - update to 5.26.00.18

• https://git.kernel.org/stable/c/8dc1b0e0ca204596c50bcd159ee069ae0f998176
• https://git.kernel.org/stable/c/2adcb4c5a52a2623cd2b43efa7041e74d19f3a5e
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.11
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13

• Input validation error in Linux kernel infiniband core driver
• openEuler 20.03 LTS SP4 update for kernel
• openEuler 22.03 LTS SP3 update for kernel
• SUSE update for the Linux Kernel
• openEuler 22.03 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 Secure Connect Gateway