From: Faisal Latif <flatif@neteffect.com>
Date: Thu, 21 Feb 2008 14:27:32 +0000 (-0600)
Subject: RDMA/nes: Fix use-after-free in mini_cm_dec_refcnt_listen()
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=a2e9c384ce76993cd68d6de57eaa81985b4618e3;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

RDMA/nes: Fix use-after-free in mini_cm_dec_refcnt_listen()

Fix use-after-free spotted by Coverity checker flagged by Adrian Bunk.

Signed-off-by: Faisal Latif <flatif@neteffect.com>
Signed-off-by: Glenn Streiff <gstreiff@neteffect.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
---

diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c
index 78e845c94576..6c298aa9ab05 100644
--- a/drivers/infiniband/hw/nes/nes_cm.c
+++ b/drivers/infiniband/hw/nes/nes_cm.c
@@ -947,6 +947,7 @@ static int mini_cm_dec_refcnt_listen(struct nes_cm_core *cm_core,
 		nes_debug(NES_DBG_CM, "destroying listener (%p)\n", listener);
 
 		kfree(listener);
+		listener = NULL;
 		ret = 0;
 		cm_listens_destroyed++;
 	} else {