CVE-2021-47642

/// Technical description

In the Linux kernel, the following vulnerability has been resolved:

video: fbdev: nvidiafb: Use strscpy() to prevent buffer overflow

Coverity complains of a possible buffer overflow. However,

given the 'static' scope of nvidia_setup_i2c_bus() it looks

like that can't happen after examiniing the call sites.

CID 19036 (#1 of 1): Copy into fixed size buffer (STRING_OVERFLOW)

1. fixed_size_dest: You might overrun the 48-character fixed-size string

chan->adapter.name by copying name without checking the length.

2. parameter_as_source: Note: This defect has an elevated risk because the

source argument is a parameter of the current function.

89 strcpy(chan->adapter.name, name);

Fix this warning by using strscpy() which will silence the warning and

prevent any future buffer overflows should the names used to identify the

channel become much longer.

/// Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

/// References