[PATCH -next] video: fbdev: Fix potential NULL pointer dereference
From: YueHaibing <hidden>
Date: 2019-01-30 10:16:43
Also in:
dri-devel, lkml
Subsystem:
framebuffer core, framebuffer layer, the rest · Maintainers:
Simona Vetter, Helge Deller, Linus Torvalds
There is a potential NULL pointer dereference in case fb_create_modedb() fails and returns NULL. Signed-off-by: YueHaibing <redacted> --- drivers/video/fbdev/core/fbmon.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/video/fbdev/core/fbmon.c b/drivers/video/fbdev/core/fbmon.c
index dd31289..3558a70 100644
--- a/drivers/video/fbdev/core/fbmon.c
+++ b/drivers/video/fbdev/core/fbmon.c@@ -978,6 +978,8 @@ void fb_edid_to_monspecs(unsigned char *edid, struct fb_monspecs *specs) get_monspecs(edid, specs); specs->modedb = fb_create_modedb(edid, &specs->modedb_len, specs); + if (!specs->modedb) + return; /* * Workaround for buggy EDIDs that sets that the first
--
2.7.0