linux-wireless.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Larry Finger <Larry.Finger@lwfinger.net>
To: kvalo@codeaurora.org
Cc: linux-wireless@vger.kernel.org,
	"Larry Finger" <Larry.Finger@lwfinger.net>,
	"Francisco Machado Magalhães Neto" <franmagneto@gmail.com>,
	"Ping-Ke Shih" <pkshih@realtek.com>,
	Stable <stable@vger.kernel.org>
Subject: [PATCH 4.20] rtlwifi: Fix leak of skb when processing C2H_BT_INFO
Date: Sat, 17 Nov 2018 20:55:03 -0600	[thread overview]
Message-ID: <20181118025503.20639-1-Larry.Finger@lwfinger.net> (raw)

With commit 0a9f8f0a1ba9 ("rtlwifi: fix btmpinfo timeout while processing
C2H_BT_INFO"), calling rtl_c2hcmd_enqueue() with rtl_c2h_fast_cmd() true,
the routine returns without freeing that skb, thereby leaking it.

This issue has been discussed at https://github.com/lwfinger/rtlwifi_new/issues/401
and the fix tested there.

Fixes: 0a9f8f0a1ba9 ("rtlwifi: fix btmpinfo timeout while processing C2H_BT_INFO")
Reported-and-tested-by: Francisco Machado Magalhães Neto <franmagneto@gmail.com>
Cc: Francisco Machado Magalhães Neto <franmagneto@gmail.com>
Cc: Ping-Ke Shih <pkshih@realtek.com>
Cc: Stable <stable@vger.kernel.org> # 4.18+
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
---
 drivers/net/wireless/realtek/rtlwifi/base.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/realtek/rtlwifi/base.c b/drivers/net/wireless/realtek/rtlwifi/base.c
index f4122c8fdd97..ef9b502ce576 100644
--- a/drivers/net/wireless/realtek/rtlwifi/base.c
+++ b/drivers/net/wireless/realtek/rtlwifi/base.c
@@ -2289,6 +2289,7 @@ void rtl_c2hcmd_enqueue(struct ieee80211_hw *hw, struct sk_buff *skb)
 
 	if (rtl_c2h_fast_cmd(hw, skb)) {
 		rtl_c2h_content_parsing(hw, skb);
+		kfree_skb(skb);
 		return;
 	}
 
-- 
2.16.4


             reply	other threads:[~2018-11-18  2:59 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-18  2:55 Larry Finger [this message]
2018-12-13 13:38 ` Kalle Valo

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20181118025503.20639-1-Larry.Finger@lwfinger.net \
    --to=larry.finger@lwfinger.net \
    --cc=franmagneto@gmail.com \
    --cc=kvalo@codeaurora.org \
    --cc=linux-wireless@vger.kernel.org \
    --cc=pkshih@realtek.com \
    --cc=stable@vger.kernel.org \
    --subject='Re: [PATCH 4.20] rtlwifi: Fix leak of skb when processing C2H_BT_INFO' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).