Commit 7f09a3a0 authored by Azeem Shaikh's avatar Azeem Shaikh Committed by Kees Cook

drm/amd/pm: Replace all non-returning strlcpy with strscpy

strlcpy() reads the entire source buffer first.
This read may exceed the destination size limit.
This is both inefficient and can lead to linear read
overflows if a source string is not NUL-terminated [1].
In an effort to remove strlcpy() completely [2], replace
strlcpy() here with strscpy().
No return values were used, so direct replacement is safe.

[1] https://www.kernel.org/doc/html/latest/process/deprecated.html#strlcpy
[2] https://github.com/KSPP/linux/issues/89Signed-off-by: default avatarAzeem Shaikh <azeemshaikh38@gmail.com>
Acked-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Reviewed-by: default avatarKees Cook <keescook@chromium.org>
Signed-off-by: default avatarKees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20230522155245.2336818-1-azeemshaikh38@gmail.com
parent 992b8fe1
......@@ -794,7 +794,7 @@ void amdgpu_add_thermal_controller(struct amdgpu_device *adev)
struct i2c_board_info info = { };
const char *name = pp_lib_thermal_controller_names[controller->ucType];
info.addr = controller->ucI2cAddress >> 1;
strlcpy(info.type, name, sizeof(info.type));
strscpy(info.type, name, sizeof(info.type));
i2c_new_client_device(&adev->pm.i2c_bus->adapter, &info);
}
} else {
......
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