Infinite loop in Linux kernel - CVE-2020-36310

Vulnerability identifier: #VU61272

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-2020-36310

CWE-ID: CWE-835

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 infinite loop in set_memory_region_test in arch/x86/kvm/svm/svm.c. A local user can consume all available system resources and cause denial of service conditions.

Linux kernel
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kernel-livepatch-4_12_14-150_72-default
kernel-livepatch-4_12_14-150_72-default-debuginfo
kernel-livepatch-4_12_14-197_89-default
kernel-livepatch-5_3_18-24_61-default
kernel-livepatch-5_3_18-24_61-default-debuginfo
kernel-livepatch-SLE15-SP2_Update_12-debugsource
kgraft-patch-4_12_14-95_74-default
kernel-livepatch-SLE15-SP3_Update_1-debugsource
kernel-livepatch-5_3_18-59_5-default-debuginfo
kernel-livepatch-5_3_18-59_5-default
kgraft-patch-4_12_14-122_71-default
kernel-rt_debug-debuginfo
kernel-source-rt
kernel-rt_debug-debugsource
kernel-rt_debug-devel
kernel-rt_debug-devel-debuginfo
kernel-syms-rt
ocfs2-kmp-rt
ocfs2-kmp-rt-debuginfo
kernel-devel-rt
kernel-rt_debug
kernel-rt-devel-debuginfo
kernel-rt-devel
kernel-rt-debugsource
kernel-rt-debuginfo
kernel-rt-base-debuginfo
kernel-rt-base
kernel-rt
gfs2-kmp-rt-debuginfo
gfs2-kmp-rt
dlm-kmp-rt-debuginfo
dlm-kmp-rt
cluster-md-kmp-rt-debuginfo
cluster-md-kmp-rt
kernel-azure-base
kernel-source-azure
kernel-azure
kernel-azure-base-debuginfo
kernel-azure-debuginfo
kernel-azure-debugsource
kernel-azure-devel
kernel-syms-azure
kernel-devel-azure
kernel-macros
kernel-default-debugsource
kernel-source
kernel-default-man
kernel-default-kgraft
kernel-default-kgraft-devel
cluster-md-kmp-default
cluster-md-kmp-default-debuginfo
dlm-kmp-default
dlm-kmp-default-debuginfo
ocfs2-kmp-default
kernel-devel
kernel-syms
kernel-default-devel-debuginfo
kernel-default-devel
kernel-default-debuginfo
kernel-default-base-debuginfo
kernel-default-base
kernel-default
gfs2-kmp-default
gfs2-kmp-default-debuginfo
ocfs2-kmp-default-debuginfo
kernel-default-extra
kernel-default-extra-debuginfo
kernel-docs
kernel-obs-build-debugsource
kernel-obs-build
reiserfs-kmp-default
kernel-vanilla-base
kernel-vanilla-base-debuginfo
kernel-vanilla-debuginfo
kernel-vanilla-debugsource
reiserfs-kmp-default-debuginfo
kernel-zfcpdump-debuginfo
kernel-zfcpdump-debugsource
kernel-default-livepatch
kernel-default-livepatch-devel
kernel-azure-devel-debuginfo
kernel-preempt-extra-debuginfo
kernel-preempt-extra
kernel-preempt
kernel-preempt-devel-debuginfo
kernel-preempt-devel
kernel-preempt-debugsource
kernel-preempt-debuginfo
kernel-zfcpdump
kernel-64kb
kernel-64kb-debuginfo
kernel-64kb-debugsource
kernel-64kb-devel
kernel-64kb-devel-debuginfo
linux (Debian package)

Install updates from vendor's website.

Linux kernel - update to 5.8.0
kernel-livepatch-4_12_14-150_72-default - update to 1-1.3.1
kernel-livepatch-4_12_14-150_72-default-debuginfo - update to 1-1.3.1
kernel-livepatch-4_12_14-197_89-default - update to 1-3.3.2
kernel-livepatch-5_3_18-24_61-default - update to 1-5.3.4
kernel-livepatch-5_3_18-24_61-default-debuginfo - update to 1-5.3.4
kernel-livepatch-SLE15-SP2_Update_12-debugsource - update to 1-5.3.4
kgraft-patch-4_12_14-95_74-default - update to 1-6.3.1
kernel-livepatch-SLE15-SP3_Update_1-debugsource - update to 1-7.5.1
kernel-livepatch-5_3_18-59_5-default-debuginfo - update to 1-7.5.1
kernel-livepatch-5_3_18-59_5-default - update to 1-7.5.1
kgraft-patch-4_12_14-122_71-default - update to 1-8.5.1
kernel-rt_debug-debuginfo - addressed in versions 4.12.14-10.43.1, 5.3.18-33.1
kernel-source-rt - addressed in versions 4.12.14-10.43.1, 5.3.18-33.1
kernel-rt_debug-debugsource - addressed in versions 4.12.14-10.43.1, 5.3.18-33.1
kernel-rt_debug-devel - addressed in versions 4.12.14-10.43.1, 5.3.18-33.1
kernel-rt_debug-devel-debuginfo - addressed in versions 4.12.14-10.43.1, 5.3.18-33.1
kernel-syms-rt - addressed in versions 4.12.14-10.43.1, 5.3.18-33.1
ocfs2-kmp-rt - addressed in versions 4.12.14-10.43.1, 5.3.18-33.1
ocfs2-kmp-rt-debuginfo - addressed in versions 4.12.14-10.43.1, 5.3.18-33.1
kernel-devel-rt - addressed in versions 4.12.14-10.43.1, 5.3.18-33.1
kernel-rt_debug - update to 4.12.14-10.43.1
kernel-rt-devel-debuginfo - addressed in versions 4.12.14-10.43.1, 5.3.18-33.1
kernel-rt-devel - addressed in versions 4.12.14-10.43.1, 5.3.18-33.1
kernel-rt-debugsource - addressed in versions 4.12.14-10.43.1, 5.3.18-8.7.1, 5.3.18-33.1
kernel-rt-debuginfo - addressed in versions 4.12.14-10.43.1, 5.3.18-8.7.1, 5.3.18-33.1
kernel-rt-base-debuginfo - update to 4.12.14-10.43.1
kernel-rt-base - update to 4.12.14-10.43.1
kernel-rt - addressed in versions 4.12.14-10.43.1, 5.3.18-8.7.1, 5.3.18-33.1
gfs2-kmp-rt-debuginfo - addressed in versions 4.12.14-10.43.1, 5.3.18-33.1
gfs2-kmp-rt - addressed in versions 4.12.14-10.43.1, 5.3.18-33.1
dlm-kmp-rt-debuginfo - addressed in versions 4.12.14-10.43.1, 5.3.18-33.1
dlm-kmp-rt - addressed in versions 4.12.14-10.43.1, 5.3.18-33.1
cluster-md-kmp-rt-debuginfo - addressed in versions 4.12.14-10.43.1, 5.3.18-33.1
cluster-md-kmp-rt - addressed in versions 4.12.14-10.43.1, 5.3.18-33.1
kernel-azure-base - update to 4.12.14-16.56.1
kernel-source-azure - addressed in versions 4.12.14-16.56.1, 5.3.18-18.44.1, 5.3.18-38.3.1
kernel-azure - addressed in versions 4.12.14-16.56.1, 5.3.18-18.44.1, 5.3.18-38.3.1
kernel-azure-base-debuginfo - update to 4.12.14-16.56.1
kernel-azure-debuginfo - addressed in versions 4.12.14-16.56.1, 5.3.18-18.44.1, 5.3.18-38.3.1
kernel-azure-debugsource - addressed in versions 4.12.14-16.56.1, 5.3.18-18.44.1, 5.3.18-38.3.1
kernel-azure-devel - addressed in versions 4.12.14-16.56.1, 5.3.18-18.44.1, 5.3.18-38.3.1
kernel-syms-azure - addressed in versions 4.12.14-16.56.1, 5.3.18-18.44.1, 5.3.18-38.3.1
kernel-devel-azure - addressed in versions 4.12.14-16.56.1, 5.3.18-18.44.1, 5.3.18-38.3.1
kernel-macros - addressed in versions 4.12.14-95.74.1, 4.12.14-122.71.1, 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-default-debugsource - addressed in versions 4.12.14-95.74.1, 4.12.14-122.71.1, 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-source - addressed in versions 4.12.14-95.74.1, 4.12.14-122.71.1, 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-default-man - addressed in versions 4.12.14-95.74.1, 4.12.14-122.71.1, 4.12.14-150.72.1, 4.12.14-197.89.2
kernel-default-kgraft - addressed in versions 4.12.14-95.74.1, 4.12.14-122.71.1
kernel-default-kgraft-devel - addressed in versions 4.12.14-95.74.1, 4.12.14-122.71.1
cluster-md-kmp-default - addressed in versions 4.12.14-95.74.1, 4.12.14-122.71.1, 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.2
cluster-md-kmp-default-debuginfo - addressed in versions 4.12.14-95.74.1, 4.12.14-122.71.1, 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.2
dlm-kmp-default - addressed in versions 4.12.14-95.74.1, 4.12.14-122.71.1, 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.2
dlm-kmp-default-debuginfo - addressed in versions 4.12.14-95.74.1, 4.12.14-122.71.1, 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.2
ocfs2-kmp-default - addressed in versions 4.12.14-95.74.1, 4.12.14-122.71.1, 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-devel - addressed in versions 4.12.14-95.74.1, 4.12.14-122.71.1, 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-syms - addressed in versions 4.12.14-95.74.1, 4.12.14-122.71.1, 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.1
kernel-default-devel-debuginfo - addressed in versions 4.12.14-95.74.1, 4.12.14-122.71.1, 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-default-devel - addressed in versions 4.12.14-95.74.1, 4.12.14-122.71.1, 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-default-debuginfo - addressed in versions 4.12.14-95.74.1, 4.12.14-122.71.1, 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-default-base-debuginfo - addressed in versions 4.12.14-95.74.1, 4.12.14-122.71.1, 4.12.14-197.89.2
kernel-default-base - addressed in versions 4.12.14-95.74.1, 4.12.14-122.71.1, 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1.9.26.4, 5.3.18-59.5.2.18.2.2
kernel-default - addressed in versions 4.12.14-95.74.1, 4.12.14-122.71.1, 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.2
gfs2-kmp-default - addressed in versions 4.12.14-95.74.1, 4.12.14-122.71.1, 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.2
gfs2-kmp-default-debuginfo - addressed in versions 4.12.14-95.74.1, 4.12.14-122.71.1, 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.2
ocfs2-kmp-default-debuginfo - addressed in versions 4.12.14-95.74.1, 4.12.14-122.71.1, 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-default-extra - addressed in versions 4.12.14-122.71.1, 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-default-extra-debuginfo - addressed in versions 4.12.14-122.71.1, 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-docs - addressed in versions 4.12.14-122.71.1, 4.12.14-150.72.2, 4.12.14-197.89.3, 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-obs-build-debugsource - addressed in versions 4.12.14-122.71.2, 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.1
kernel-obs-build - addressed in versions 4.12.14-122.71.2, 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.1
reiserfs-kmp-default - addressed in versions 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-vanilla-base - update to 4.12.14-150.72.1
kernel-vanilla-base-debuginfo - update to 4.12.14-150.72.1
kernel-vanilla-debuginfo - update to 4.12.14-150.72.1
kernel-vanilla-debugsource - update to 4.12.14-150.72.1
reiserfs-kmp-default-debuginfo - addressed in versions 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-zfcpdump-debuginfo - addressed in versions 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-59.5.2
kernel-zfcpdump-debugsource - addressed in versions 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-59.5.2
kernel-default-livepatch - addressed in versions 4.12.14-150.72.1, 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-default-livepatch-devel - addressed in versions 4.12.14-197.89.2, 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-azure-devel-debuginfo - addressed in versions 5.3.18-18.44.1, 5.3.18-38.3.1
kernel-preempt-extra-debuginfo - addressed in versions 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-preempt-extra - addressed in versions 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-preempt - addressed in versions 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-preempt-devel-debuginfo - addressed in versions 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-preempt-devel - addressed in versions 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-preempt-debugsource - addressed in versions 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-preempt-debuginfo - addressed in versions 5.3.18-24.61.1, 5.3.18-59.5.2
kernel-zfcpdump - update to 5.3.18-59.5.2
kernel-64kb - update to 5.3.18-59.5.2
kernel-64kb-debuginfo - update to 5.3.18-59.5.2
kernel-64kb-debugsource - update to 5.3.18-59.5.2
kernel-64kb-devel - update to 5.3.18-59.5.2
kernel-64kb-devel-debuginfo - update to 5.3.18-59.5.2
linux (Debian package) - update to 5.10.103-1

• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e72436bc3a5206f95bb384e741154166ddb3202e
• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8
• https://www.debian.org/security/2022/dsa-5095

• Denial of service in Linux kernel
• Debian update for linux
• SUSE update for the Linux 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
• SUSE update for the Linux 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
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel