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Vulnerability · Published Jun 8, 2024 · Assigned by Linux

CVE-2024-36969drm/amd/display: Fix division by zero in setup_dsc_config

Medium 5.5

In plain English

A medium-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 12% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.2%top 88.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix division by zero in setup_dsc_config When slice_height is 0, the division by slice_height in the calculation of the number of slices will cause a division by zero driver crash. This leaves the kernel in a state that requires a reboot. This patch adds a check to avoid the division by zero. The stack trace below is for the 6.8.4 Kernel. I reproduced the issue on a Z16 Gen 2 Lenovo Thinkpad with a Apple Studio Display monitor connected via Thunderbolt. The amdgpu driver crashed with this exception when I rebooted the system with the monitor connected. kernel: ? die (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:434 arch/x86/kernel/dumpstack.c:447) kernel: ? do_trap (arch/x86/kernel/traps.c:113 arch/x86/kernel/traps.c:154) kernel: ? setup_dsc_config (drivers/gpu/drm/amd/amdgpu/../display/dc/dsc/dc_dsc.c:1053) amdgpu kernel: ? do_error_trap (./arch/x86/include/asm/traps.h:58 arch/x86/kernel/traps.c:175) kernel: ? setup_dsc_config (drivers/gpu/drm/amd/amdgpu/../display/dc/dsc/dc_dsc.c:1053) amdgpu kernel: ? exc_divide_error (arch/x86/kernel/traps.c:194 (discriminator 2)) kernel: ? setup_dsc_config (drivers/gpu/drm/amd/amdgpu/../display/dc/dsc/dc_dsc.c:1053) amdgpu kernel: ? asm_exc_divide_error (./arch/x86/include/asm/idtentry.h:548) kernel: ? setup_dsc_config (drivers/gpu/drm/amd/amdgpu/../display/dc/dsc/dc_dsc.c:1053) amdgpu kernel: dc_dsc_compute_config (drivers/gpu/drm/amd/amdgpu/../display/dc/dsc/dc_dsc.c:1109) amdgpu After applying this patch, the driver no longer crashes when the monitor is connected and the system is rebooted. I believe this is the same issue reported for 3113.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.94-1DEBIAN-CVE-2024-36969
Debian:13linux6.8.11-1DEBIAN-CVE-2024-36969
Debian:14linux6.8.11-1DEBIAN-CVE-2024-36969
Ubuntu:22.04:LTSlinux5.15.0-118.128UBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux5.15.0-118.128USN-6950-1
Ubuntu:24.04:LTSlinux6.8.0-40.40UBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-aws5.15.0-1067.73UBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-aws5.15.0-1067.73USN-6950-1
Ubuntu:24.04:LTSlinux-aws6.8.0-1013.14UBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1013.14~22.04.1UBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-azure5.15.0-1070.79UBUNTU-CVE-2024-36969
Ubuntu:24.04:LTSlinux-azure6.8.0-1012.14UBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1012.14~22.04.1UBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1070.79.1UBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-gcp5.15.0-1066.74USN-6950-1
Ubuntu:22.04:LTSlinux-gcp5.15.0-1066.74UBUNTU-CVE-2024-36969
Ubuntu:24.04:LTSlinux-gcp6.8.0-1012.13UBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1012.13~22.04.1UBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-gke5.15.0-1064.70UBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-gke5.15.0-1064.70USN-6950-1
Ubuntu:24.04:LTSlinux-gke6.8.0-1008.11UBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1050.57UBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1050.57USN-6950-1
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-40.40~22.04.3UBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-ibm5.15.0-1060.63USN-6950-2
Ubuntu:22.04:LTSlinux-ibm5.15.0-1060.63UBUNTU-CVE-2024-36969
Ubuntu:24.04:LTSlinux-ibm6.8.0-1010.10UBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1010.10~22.04.1UBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1062.68UBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1062.68USN-6950-1
Ubuntu:22.04:LTSlinux-kvm5.15.0-1064.69USN-6950-1
Ubuntu:22.04:LTSlinux-kvm5.15.0-1064.69UBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-118.128UBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-118.128USN-6950-1
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-40.40.1UBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-40.40.1~22.04.1UBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1062.63UBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1062.63USN-6950-1
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1011.11UBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1011.11~22.04.1UBUNTU-CVE-2024-36969
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1011.11.1UBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1027.27UBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1015.15UBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2024-36969
Ubuntu:24.04:LTSlinux-oem-6.86.8.0-1010.10UBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-oracle5.15.0-1065.71UBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-oracle5.15.0-1065.71USN-6950-3
Ubuntu:24.04:LTSlinux-oracle6.8.0-1010.10UBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1010.10~22.04.1UBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-raspi5.15.0-1060.63USN-6950-2
Ubuntu:22.04:LTSlinux-raspi5.15.0-1060.63UBUNTU-CVE-2024-36969
Ubuntu:24.04:LTSlinux-raspi6.8.0-1009.10UBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2024-36969
Ubuntu:24.04:LTSlinux-riscv6.8.0-40.40.1UBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-40.40.1~22.04.1UBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2024-36969
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1035.39UBUNTU-CVE-2024-36969

Affected products (as reported)

VendorProductVersions
Linux Linux 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c – before a32c8f951c8a456c1c251e1dcdf21787f80664454562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c – before 91402e0e5de9124a3108db7a14163fcf9a6d322f4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c – before 7e4f50dfc98c49b3dc6875a35c3112522fb256394562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c – before f187fcbbb8f8bf10c6687f0beae22509369f75634562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c – before 308de6be0c9c7ba36915c0d398e771725c0ea9114562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c – before 130afc8a886183a94cf6eab7d24f300014ff87ba
Linux Linux 4.15

References