aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/gpu/drm/i2c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2018-08-17 10:40:09 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-08-17 10:40:09 -0700
commit84f5685230c6aeb427947a2299dcb54c77863df0 (patch)
tree420c23fd53580e5371c5d0a5217cbe261505d0ad /drivers/gpu/drm/i2c
parentx86/speculation/l1tf: Exempt zeroed PTEs from inversion (diff)
parentbus: imx-weim: Remove VLA usage (diff)
downloadlinux-dev-84f5685230c6aeb427947a2299dcb54c77863df0.tar.xz
linux-dev-84f5685230c6aeb427947a2299dcb54c77863df0.zip
Merge tag 'vla-leftovers-v4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull VLA removal leftovers from Kees Cook: - bus/imx-weim: Use maximum register count to avoid VLA - drm/i2c/tda9950: Use maximum CEC message size to avoid VLA * tag 'vla-leftovers-v4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: bus: imx-weim: Remove VLA usage drm/i2c: tda9950: Remove VLA usage
Diffstat (limited to 'drivers/gpu/drm/i2c')
-rw-r--r--drivers/gpu/drm/i2c/tda9950.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i2c/tda9950.c b/drivers/gpu/drm/i2c/tda9950.c
index 3f7396caad48..5d2f0d548469 100644
--- a/drivers/gpu/drm/i2c/tda9950.c
+++ b/drivers/gpu/drm/i2c/tda9950.c
@@ -76,9 +76,12 @@ struct tda9950_priv {
static int tda9950_write_range(struct i2c_client *client, u8 addr, u8 *p, int cnt)
{
struct i2c_msg msg;
- u8 buf[cnt + 1];
+ u8 buf[CEC_MAX_MSG_SIZE + 3];
int ret;
+ if (WARN_ON(cnt > sizeof(buf) - 1))
+ return -EINVAL;
+
buf[0] = addr;
memcpy(buf + 1, p, cnt);