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 3F10526F45F; Tue, 8 Apr 2025 12:34:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744115694; cv=none; b=OsuMQD6mkYH+Uu12yd9NE05SZJnwuu1EYu+QD8BafnNbGLzDz0XyuHnJZ3C9KKWL2FO1Itzt3/TKLyHftk/Bo1EHhjsuH8KmktqTyuZTXPAqOIVqAEbhSLO0Rz1aDAkCOTiQYTZ2UDsDB36rpZNbVYduB3mbMSf33Iv6CAuCYOg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744115694; c=relaxed/simple; bh=ym+q3y7HWrIEW7mV9f0jyJkrBBJNCNoC/zhLFhhs4Vw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=oUcO7+Eb5i045oRVBItDH3IICdfu35pDxWUpwbOuK9UPcy3sofb46c8boGsrkmYmoTx1MUky5TFwZvaJ/hwyNOTCJ262TP2OP3CJw3TklpNYyeowos0RaWnqpinyLvRxbOftG6oaNr21ADeqhmXtb6KN+0ZiFwWoEbWHuSqgbeY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=E1LLGgV3; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="E1LLGgV3" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 64D63C4CEE5; Tue, 8 Apr 2025 12:34:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1744115693; bh=ym+q3y7HWrIEW7mV9f0jyJkrBBJNCNoC/zhLFhhs4Vw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=E1LLGgV3vxwx8xl9oc72cAkh5h66cEDjigaADwQSJ5qVTzLfRODn7CuEKKkJxyfGc SaxbDT2LA1Pdn/M4irVFkdLVlH8rmGBC6aqpb99o+s/TouwI3RHl1dDyCu+2oOXTw1 BvYo+gAuSTmobQ5Mn8umlpLzsNxrPaYFeEKgg1Ig= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Markus Elfring , Cheng Xu , Leon Romanovsky , Sasha Levin Subject: [PATCH 6.1 068/204] RDMA/erdma: Prevent use-after-free in erdma_accept_newconn() Date: Tue, 8 Apr 2025 12:49:58 +0200 Message-ID: <20250408104822.359176010@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250408104820.266892317@linuxfoundation.org> References: <20250408104820.266892317@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Cheng Xu [ Upstream commit 83437689249e6a17b25e27712fbee292e42e7855 ] After the erdma_cep_put(new_cep) being called, new_cep will be freed, and the following dereference will cause a UAF problem. Fix this issue. Fixes: 920d93eac8b9 ("RDMA/erdma: Add connection management (CM) support") Signed-off-by: Markus Elfring Signed-off-by: Cheng Xu Signed-off-by: Leon Romanovsky Signed-off-by: Sasha Levin --- drivers/infiniband/hw/erdma/erdma_cm.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/infiniband/hw/erdma/erdma_cm.c b/drivers/infiniband/hw/erdma/erdma_cm.c index 74f6348f240ac..1156ae62c4683 100644 --- a/drivers/infiniband/hw/erdma/erdma_cm.c +++ b/drivers/infiniband/hw/erdma/erdma_cm.c @@ -704,7 +704,6 @@ static void erdma_accept_newconn(struct erdma_cep *cep) erdma_cancel_mpatimer(new_cep); erdma_cep_put(new_cep); - new_cep->sock = NULL; } if (new_s) { -- 2.39.5