drivers/misc/ti-st/st_core.c: missing NULL check

Addresses https://bugzilla.kernel.org/show_bug.cgi?44431

Reported-by: <rucsoftsec@gmail.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: Pavan Savoy <pavan_savoy@ti.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/drivers/misc/ti-st/st_core.c b/drivers/misc/ti-st/st_core.c
index 2b62232c2c6a3476551f11f86253dcf545234d07..acfaeeb9e01a98e7f296d5c2081f35ef4d53b325 100644 (file)
--- a/drivers/misc/ti-st/st_core.c
+++ b/drivers/misc/ti-st/st_core.c
@@ -349,6 +349,11 @@ void st_int_recv(void *disc_data,
                        st_gdata->rx_skb = alloc_skb(
                                        st_gdata->list[type]->max_frame_size,
                                        GFP_ATOMIC);
+                       if (st_gdata->rx_skb == NULL) {
+                               pr_err("out of memory: dropping\n");
+                               goto done;
+                       }
+
                        skb_reserve(st_gdata->rx_skb,
                                        st_gdata->list[type]->reserve);
                        /* next 2 required for BT only */