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CVE Record

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

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.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2024-36969 is a Linux kernel amdgpu display-driver crash caused by dividing by zero during Display Stream Compression setup. The reported impact is availability: the driver crashes and leaves the system needing a reboot when a triggering display condition occurs.

Executive priority

Treat this as a targeted availability risk for Linux endpoints with AMD graphics, not a broad emergency. Prioritize patching where display crashes affect executives, developers, kiosks, labs, or operational workstations that rely on external monitors.

Technical view

In drm/amd/display, setup_dsc_config can divide by slice_height when slice_height is zero. The source reports a crash in amdgpu on Linux 6.8.4 with an external Apple Studio Display over Thunderbolt, and says the patch adds a guard before division.

Likely exposure

Exposure is most likely on Linux systems using AMD GPU display support with affected kernel versions and display configurations that exercise DSC setup. The bundle lists Linux as affected across several kernel lines, but does not identify distributions, packages, or cloud images.

Exploitation context

No active exploitation is supported by the provided bundle, and KEV is false. The documented trigger is a real-world reboot with a Thunderbolt-connected monitor, not a remote attack path. Evidence supports denial of service, not code execution.

Researcher notes

The evidence is limited to kernel CVE data and stable patch references. The affected-version structure in the bundle is not distro-specific, and no CVSS, CWE, exploit status, or remote vector is provided. Avoid expanding scope beyond amdgpu DSC crash conditions.

Mitigation direction

  • Apply Linux kernel updates that include the referenced stable fixes.
  • Check distribution advisories for backported amdgpu fixes.
  • Prioritize laptops/workstations with AMD graphics and DSC-capable external displays.
  • Use vendor guidance for any unsupported or custom kernels.
  • Consider operational workarounds for known crashing display setups until patched.

Validation and detection

  • Inventory Linux systems using AMD GPU display drivers.
  • Compare running kernels against vendor fixed versions or referenced commits.
  • Review kernel logs for divide errors in setup_dsc_config or dc_dsc_compute_config.
  • Confirm patched systems no longer crash under normal display reboot workflows.
  • Track distro package status before marking remediation complete.
Prepared
Confidence
medium
Sources
8

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
3Timeline events
2ADP providers
7Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: partial

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc
CVECVE Program Container

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c, 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c, 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c, 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c, 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c, 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7cunaffected
LinuxLinux4.15, 0, 5.15.160, 6.1.92, 6.6.32, 6.8.11, 6.9.2, 6.10affected
Weakness

CWE details

No CWE listed

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