What’s Vulnerable › Vulnerabilities

CVE-2022-50781: amdgpu/pm: prevent array underflow in vega20_odn_edit_dpm_table()

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-12-24 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: amdgpu/pm: prevent array underflow in vega20_odn_edit_dpm_table() In the PP_OD_EDIT_VDDC_CURVE case the "input_index" variable is capped at 2 but not checked for negative values so it results in an out of bounds read. This value comes from the user via sysfs.

Affected products

• Linux kernel: 4.20 — fixed in 6.2

How to fix

Upgrade to a fixed version: Linux kernel 6.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/4d3dc0de9c46d9f73be6bac026e40b893e37ea21
• https://git.kernel.org/stable/c/8084bd0a64e278314b733993f388d83a86aa1183
• https://git.kernel.org/stable/c/85273b4a7076ed5328c8ace02234e4e7e10972d5
• https://git.kernel.org/stable/c/a03625ad11b50429930f4c491d6c97e70f2ba89a
• https://git.kernel.org/stable/c/d27252b5706e51188aed7647126e44dcf9e940c1
• https://git.kernel.org/stable/c/f289a38df0da4cfe4b50d04b1b9c3bc646fecd57

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