CVE-2022-50781
Array Underflow in Linux amdgpu Driver Causes Out-of-Bounds Read
Publication date: 2025-12-24
Last updated on: 2025-12-24
Assigner: kernel.org
Description
Description
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| linux | linux_kernel | * |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is an array underflow issue in the Linux kernel's amdgpu driver, specifically in the vega20_odn_edit_dpm_table() function. The variable 'input_index' is limited to a maximum value of 2 but is not checked for negative values, which can lead to an out-of-bounds read. The problematic value is provided by the user through sysfs.
How can this vulnerability impact me? :
The vulnerability can lead to an out-of-bounds read in kernel memory, which may cause system instability, crashes, or potentially allow an attacker to read sensitive kernel memory. Since the input comes from user space via sysfs, a local attacker could exploit this to compromise system security or cause denial of service.