a7y18lte-ubports/android_kernel_samsung_universal7885
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

udl-kms: fix crash due to uninitialized memory

Browse Source 
commit 09a00abe3a9941c2715ca83eb88172cd2f54d8fd upstream.

We must use kzalloc when allocating the fb_deferred_io structure.
Otherwise, the field first_io is undefined and it causes a crash.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Mikulas Patocka 2018-06-03 16:40:57 +02:00 committed by Greg Kroah-Hartman
parent 377d23bc9d
commit 7030b7046e
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/udl/udl_fb.c
View File

@ -341,7 +341,7 @@ static int udl_fb_open(struct fb_info *info, int user)
struct fb_deferred_io *fbdefio;
fbdefio = kmalloc(sizeof(struct fb_deferred_io), GFP_KERNEL);
fbdefio = kzalloc(sizeof(struct fb_deferred_io), GFP_KERNEL);
if (fbdefio) {
fbdefio->delay = DL_DEFIO_WRITE_DELAY;