amdgpu/pm: prevent array underflow in vega20_odn_edit_dpm_table()
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.
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- 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
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50781.json
- https://nvd.nist.gov/vuln/detail/CVE-2022-50781