From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 58ADD2AB21 for ; Wed, 20 Sep 2023 12:00:58 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D3264C433C7; Wed, 20 Sep 2023 12:00:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1695211258; bh=bWYkKxnPkyiYIWqrSN13KJAXCbhrIi/sDNLmW/Wrglo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Tt5dzUOd1eUMAv7WYx2f+YZijz9Itc3cHSJatamCD+EhmIZZhFo5BFRbkglaQNnhG ubIlQgTCU5sBpb02bjxZtDVcB51ZcOPq3Yhp939sLjYUs/O2V8JjAMzbqpHc4pJZaN 2M2y2I8MmFmReGg7DeG8BnJW3b3tfmnUvjuJ9I8I= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Dan Carpenter , "David S. Miller" , Sasha Levin Subject: [PATCH 4.14 027/186] sctp: handle invalid error codes without calling BUG() Date: Wed, 20 Sep 2023 13:28:50 +0200 Message-ID: <20230920112837.898210944@linuxfoundation.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20230920112836.799946261@linuxfoundation.org> References: <20230920112836.799946261@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 4.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Dan Carpenter [ Upstream commit a0067dfcd9418fd3b0632bc59210d120d038a9c6 ] The sctp_sf_eat_auth() function is supposed to return enum sctp_disposition values but if the call to sctp_ulpevent_make_authkey() fails, it returns -ENOMEM. This results in calling BUG() inside the sctp_side_effects() function. Calling BUG() is an over reaction and not helpful. Call WARN_ON_ONCE() instead. This code predates git. Signed-off-by: Dan Carpenter Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- net/sctp/sm_sideeffect.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c index 169819263c0bb..87822421b99db 100644 --- a/net/sctp/sm_sideeffect.c +++ b/net/sctp/sm_sideeffect.c @@ -1235,7 +1235,10 @@ static int sctp_side_effects(enum sctp_event event_type, default: pr_err("impossible disposition %d in state %d, event_type %d, event_id %d\n", status, state, event_type, subtype.chunk); - BUG(); + error = status; + if (error >= 0) + error = -EINVAL; + WARN_ON_ONCE(1); break; } -- 2.40.1