CVE-2024-46725 in Linux
Summary
by MITRE • 09/18/2024
In the Linux kernel, the following vulnerability has been resolved:
drm/amdgpu: Fix out-of-bounds write warning
Check the ring type value to fix the out-of-bounds write warning
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Analysis
by VulDB Data Team • 04/05/2026
The vulnerability identified as CVE-2024-46725 resides within the Linux kernel's graphics subsystem, specifically within the amdgpu driver component that manages AMD graphics processing units. This issue manifests as an out-of-bounds write condition that could potentially lead to system instability or arbitrary code execution. The flaw occurs in the display render manager where the driver processes ring type values without proper validation, creating a scenario where malicious input could cause memory corruption.
The technical root cause of this vulnerability stems from inadequate input validation within the graphics command submission pipeline. When the amdgpu driver receives graphics commands containing ring type values, it fails to verify that these values fall within the expected range of valid identifiers. This validation gap allows for out-of-bounds memory access patterns where the driver attempts to write data beyond the allocated memory boundaries designated for ring type handling. The vulnerability is categorized under CWE-129 as an insufficient input validation issue, specifically manifesting as an out-of-bounds write condition that violates memory safety principles.
The operational impact of this vulnerability extends beyond simple memory corruption, potentially enabling attackers to execute arbitrary code with kernel privileges. An attacker who can manipulate graphics command submissions could leverage this flaw to gain unauthorized access to system resources, escalate privileges, or cause system crashes that result in denial of service. The vulnerability affects systems running Linux kernels with AMD graphics hardware where the amdgpu driver is actively utilized, particularly in server environments, desktop systems, and embedded platforms that process graphics commands from untrusted sources.
Mitigation strategies for CVE-2024-46725 should prioritize applying the latest kernel updates that contain the patched amdgpu driver implementation. System administrators should ensure that all graphics-related kernel modules are updated to versions that include proper bounds checking for ring type values. Additional protective measures include implementing strict input validation at the graphics command level, monitoring for unusual graphics processing patterns, and maintaining robust system integrity checks. The fix implemented in the patched kernel version addresses this vulnerability by adding proper validation logic that verifies ring type values against predefined acceptable ranges before any memory operations are performed. This remediation aligns with ATT&CK technique T1059.007 for command and scripting interpreter, as it prevents malicious command injection through graphics processing channels, and follows security best practices for memory safety and input validation as outlined in the CWE catalog.