Integer underflow in Linux kernel - CVE-2023-53042

Vulnerability identifier: #VU108490

CSH Severity: Low

CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2023-53042

CWE-ID: CWE-191

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to execute arbitrary code.

The vulnerability exists due to integer underflow within the dcn30_prepare_bandwidth() function in drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c. A local user can execute arbitrary code.

Linux kernel
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Micro
SUSE Linux Enterprise Live Patching
openSUSE Leap
kernel-livepatch-5_14_21-150500_55_110-default-debuginfo
kernel-livepatch-5_14_21-150500_55_110-default
kernel-livepatch-SLE15-SP5_Update_27-debugsource
reiserfs-kmp-rt-debuginfo
kernel-rt-livepatch
kernel-source-rt
kernel-rt_debug-debuginfo
kernel-rt_debug-debugsource
dlm-kmp-rt
kernel-rt_debug-devel
kernel-rt-devel-debuginfo
kernel-syms-rt
kselftests-kmp-rt
dlm-kmp-rt-debuginfo
gfs2-kmp-rt-debuginfo
kernel-rt-devel
kernel-rt_debug-devel-debuginfo
kernel-rt
kernel-rt_debug
gfs2-kmp-rt
kernel-devel-rt
kernel-rt-optional
kernel-rt_debug-vdso
kernel-rt-vdso
kernel-rt-debuginfo
cluster-md-kmp-rt
kselftests-kmp-rt-debuginfo
ocfs2-kmp-rt
kernel-rt-livepatch-devel
kernel-rt_debug-vdso-debuginfo
cluster-md-kmp-rt-debuginfo
reiserfs-kmp-rt
kernel-rt-optional-debuginfo
kernel-rt-extra-debuginfo
ocfs2-kmp-rt-debuginfo
kernel-rt-vdso-debuginfo
kernel-rt-extra
kernel-rt-debugsource
kernel-default
kernel-default-debuginfo
kernel-default-debugsource
kernel-default-livepatch
kernel-default-livepatch-devel

Install update from vendor's website.

Linux kernel - update to 6.1.21
kernel-livepatch-5_14_21-150500_55_110-default-debuginfo - update to 1-150500.11.7.1
kernel-livepatch-5_14_21-150500_55_110-default - update to 1-150500.11.7.1
kernel-livepatch-SLE15-SP5_Update_27-debugsource - update to 1-150500.11.7.1
reiserfs-kmp-rt-debuginfo - update to 5.14.21-150500.13.97.1
kernel-rt-livepatch - update to 5.14.21-150500.13.97.1
kernel-source-rt - update to 5.14.21-150500.13.97.1
kernel-rt_debug-debuginfo - update to 5.14.21-150500.13.97.1
kernel-rt_debug-debugsource - update to 5.14.21-150500.13.97.1
dlm-kmp-rt - update to 5.14.21-150500.13.97.1
kernel-rt_debug-devel - update to 5.14.21-150500.13.97.1
kernel-rt-devel-debuginfo - update to 5.14.21-150500.13.97.1
kernel-syms-rt - update to 5.14.21-150500.13.97.1
kselftests-kmp-rt - update to 5.14.21-150500.13.97.1
dlm-kmp-rt-debuginfo - update to 5.14.21-150500.13.97.1
gfs2-kmp-rt-debuginfo - update to 5.14.21-150500.13.97.1
kernel-rt-devel - update to 5.14.21-150500.13.97.1
kernel-rt_debug-devel-debuginfo - update to 5.14.21-150500.13.97.1
kernel-rt - update to 5.14.21-150500.13.97.1
kernel-rt_debug - update to 5.14.21-150500.13.97.1
gfs2-kmp-rt - update to 5.14.21-150500.13.97.1
kernel-devel-rt - update to 5.14.21-150500.13.97.1
kernel-rt-optional - update to 5.14.21-150500.13.97.1
kernel-rt_debug-vdso - update to 5.14.21-150500.13.97.1
kernel-rt-vdso - update to 5.14.21-150500.13.97.1
kernel-rt-debuginfo - update to 5.14.21-150500.13.97.1
cluster-md-kmp-rt - update to 5.14.21-150500.13.97.1
kselftests-kmp-rt-debuginfo - update to 5.14.21-150500.13.97.1
ocfs2-kmp-rt - update to 5.14.21-150500.13.97.1
kernel-rt-livepatch-devel - update to 5.14.21-150500.13.97.1
kernel-rt_debug-vdso-debuginfo - update to 5.14.21-150500.13.97.1
cluster-md-kmp-rt-debuginfo - update to 5.14.21-150500.13.97.1
reiserfs-kmp-rt - update to 5.14.21-150500.13.97.1
kernel-rt-optional-debuginfo - update to 5.14.21-150500.13.97.1
kernel-rt-extra-debuginfo - update to 5.14.21-150500.13.97.1
ocfs2-kmp-rt-debuginfo - update to 5.14.21-150500.13.97.1
kernel-rt-vdso-debuginfo - update to 5.14.21-150500.13.97.1
kernel-rt-extra - update to 5.14.21-150500.13.97.1
kernel-rt-debugsource - update to 5.14.21-150500.13.97.1
kernel-default - update to 5.14.21-150500.55.110.1
kernel-default-debuginfo - update to 5.14.21-150500.55.110.1
kernel-default-debugsource - update to 5.14.21-150500.55.110.1
kernel-default-livepatch - update to 5.14.21-150500.55.110.1
kernel-default-livepatch-devel - update to 5.14.21-150500.55.110.1

• https://git.kernel.org/stable/c/3c20a098b507020936e02a98f4fbb924deeef44b
• https://git.kernel.org/stable/c/56574f89dbd84004c3fd6485bcaafb5aa9b8be14
• https://git.kernel.org/stable/c/f8080f1e300e7abcc03025ec8b5bab69ae98daaa
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.21

• Integer underflow in Linux kernel dc dcn30 driver
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel