From 334bf33eec5701a1e4e967bcb7cc8611a998334b Mon Sep 17 00:00:00 2001
From: Benjamin Berg <benjamin.berg@intel.com>
Date: Mon, 25 Sep 2023 17:18:56 +0200
Subject: [PATCH] wifi: cfg80211: avoid leaking stack data into trace
Git-commit: 334bf33eec5701a1e4e967bcb7cc8611a998334b
Patch-mainline: v6.6-rc5
References: git-fixes
If the structure is not initialized then boolean types might be copied
into the tracing data without being initialised. This causes data from
the stack to leak into the trace and also triggers a UBSAN failure which
can easily be avoided here.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Link: https://lore.kernel.org/r/20230925171855.a9271ef53b05.I8180bae663984c91a3e036b87f36a640ba409817@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
net/wireless/nl80211.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 7a88361b3414..931a03f4549c 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -8501,7 +8501,7 @@ static int nl80211_update_mesh_config(struct sk_buff *skb,
struct cfg80211_registered_device *rdev = info->user_ptr[0];
struct net_device *dev = info->user_ptr[1];
struct wireless_dev *wdev = dev->ieee80211_ptr;
- struct mesh_config cfg;
+ struct mesh_config cfg = {};
u32 mask;
int err;
--
2.35.3