[PATCH] omapfb: Fix potential NULL pointer dereference in kmalloc
From: Aditya Pakki <hidden>
Date: 2019-03-02 20:40:19
Also in:
dri-devel, linux-omap, lkml
Subsystem:
framebuffer layer, omap display subsystem and framebuffer support (dss2), the rest · Maintainers:
Helge Deller, Linus Torvalds
Memory allocated, using kmalloc, for new_compat may fail. This patch checks for such an error and prevents potential NULL pointer dereference. Signed-off-by: Aditya Pakki <redacted> --- drivers/video/fbdev/omap2/omapfb/dss/omapdss-boot-init.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/video/fbdev/omap2/omapfb/dss/omapdss-boot-init.c b/drivers/video/fbdev/omap2/omapfb/dss/omapdss-boot-init.c
index 136d30484d02..0592c436b2da 100644
--- a/drivers/video/fbdev/omap2/omapfb/dss/omapdss-boot-init.c
+++ b/drivers/video/fbdev/omap2/omapfb/dss/omapdss-boot-init.c@@ -111,6 +111,8 @@ static void __init omapdss_omapify_node(struct device_node *node) new_len = prop->length + strlen(prefix) * num_strs; new_compat = kmalloc(new_len, GFP_KERNEL); + if (!new_compat) + return; omapdss_prefix_strcpy(new_compat, new_len, prop->value, prop->length);
--
2.17.1