[PATCH 2/3] drm/modes: Use strscpy() to copy command-line mode name

[Maxime Ripard]

The mode name in struct drm_cmdline_mode can hold 32 characters at most,
which can easily get overrun. Switch to strscpy() to prevent such a
thing.

Reported-by: coverity-bot <keescook+coverity-bot at chromium.org>
Addresses-Coverity-ID: 1527354 ("Security best practices violations")
Fixes: a7ab155397dd ("drm/modes: Switch to named mode descriptors")
Signed-off-by: Maxime Ripard <maxime at cerno.tech>
---
 drivers/gpu/drm/drm_modes.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
index 699c66e54668..be030f4a5311 100644
--- a/drivers/gpu/drm/drm_modes.c
+++ b/drivers/gpu/drm/drm_modes.c
@@ -2316,7 +2316,7 @@ static int drm_mode_parse_cmdline_named_mode(const char *name,
 		if (ret != name_end)
 			continue;
 
-		strcpy(cmdline_mode->name, mode->name);
+		strscpy(cmdline_mode->name, mode->name, sizeof(cmdline_mode->name));
 		cmdline_mode->pixel_clock = mode->pixel_clock_khz;
 		cmdline_mode->xres = mode->xres;
 		cmdline_mode->yres = mode->yres;
-- 
2.38.1