linux-kernel - [PATCH 4.19 78/85] sctp: fix memleak in sctp_send_reset

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20190822171734.481850470@linuxfoundation.org>
Date:   Thu, 22 Aug 2019 10:19:51 -0700
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Hulk Robot <hulkci@...wei.com>,
        zhengbin <zhengbin13@...wei.com>,
        Marcelo Ricardo Leitner <marcelo.leitner@...il.com>,
        Neil Horman <nhorman@...driver.com>,
        Jakub Kicinski <jakub.kicinski@...ronome.com>
Subject: [PATCH 4.19 78/85] sctp: fix memleak in sctp_send_reset_streams

From: zhengbin <zhengbin13@...wei.com>

[ Upstream commit 6d5afe20397b478192ed8c38ec0ee10fa3aec649 ]

If the stream outq is not empty, need to kfree nstr_list.

Fixes: d570a59c5b5f ("sctp: only allow the out stream reset when the stream outq is empty")
Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: zhengbin <zhengbin13@...wei.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@...il.com>
Acked-by: Neil Horman <nhorman@...driver.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@...ronome.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 net/sctp/stream.c |    1 +
 1 file changed, 1 insertion(+)

--- a/net/sctp/stream.c
+++ b/net/sctp/stream.c
@@ -416,6 +416,7 @@ int sctp_send_reset_streams(struct sctp_
 		nstr_list[i] = htons(str_list[i]);
 
 	if (out && !sctp_stream_outq_is_empty(stream, str_nums, nstr_list)) {
+		kfree(nstr_list);
 		retval = -EAGAIN;
 		goto out;
 	}