diff options
| author | Mikulas Patocka <mpatocka@redhat.com> | 2018-06-03 16:40:57 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-09-05 09:20:09 +0200 |
| commit | 268143ee0b8d71975bf16056579da57ee9e91be0 (patch) | |
| tree | 021cd9be5d9470e1cf63aa6723812e1b78830be5 | |
| parent | 73aa57ac7cc31b23e67d885015a61a247b3bc862 (diff) | |
udl-kms: fix crash due to uninitialized memory
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>
| -rw-r--r-- | drivers/gpu/drm/udl/udl_fb.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/udl/udl_fb.c b/drivers/gpu/drm/udl/udl_fb.c index 39d0fdcb17d2..6a7994a79f55 100644 --- a/drivers/gpu/drm/udl/udl_fb.c +++ b/drivers/gpu/drm/udl/udl_fb.c @@ -217,7 +217,7 @@ 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; |