From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 BF9A13CEB9E; Wed, 30 Sep 2026 19:15:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790795721; cv=none; b=cjbxNNwMlejPk693EFSk175VlpB4rVjelYQEgVtuHPpQItaO5bhrEJyqKyRXraN+mCGXwTp0HR0hc1SLHy+mSRRvfTh24DrbXc/u4yEx2TyiRS+Zxek9boINg7NBT4HD9lfSv068gNrGeuqAL0KF5R88+j7hzv840jBY5U8cZcc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790795721; c=relaxed/simple; bh=ZDXX8nDR5UmgNRVLM1zOCVEQCZ2gK9aH/50bVv63BQk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=jlShxM2qt/qAmPa0JEQvBp/aTGWvaXS5vOUBdZYcyJDO94SRU6hRQ3InoAzaXRAVM2h1M/jR4n2EBQZDxB4Ue3NVC7hwyAvofoVR4YiZGQ9YhbyVzZDdTrt4Rf8zqkAQWSTu7LQr70nTDQk+4nE312bfDiheD4V9XxZO7RETVrw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=VRQ8HGYz; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="VRQ8HGYz" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 297301F000FF; Wed, 30 Sep 2026 19:15:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1790795719; bh=+IXJT/U8KaclSOqQDFumELYJ7pa50IaZ1h6J+zjEXRQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=VRQ8HGYzCFUbJd5GRfC1bgXmWHmx/Vc+mEDSW1d2JIDg62W0thKDx0VDcDPXFEhEI VzIL09T0gDnxtTXG+un7lsxqwSC870UgSorStL8xlgKu88fTydfZK5FPXo5ACl3j+j FHMbC1JZvQQ1ADbt1iKADhbDc+OOPLUiX5efxRMs= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Sashiko , Joe Damato , Paolo Abeni Subject: [PATCH 6.6 0658/1193] bnxt_en: Propagate RX ring init failures in bnxt_init_nic() Date: Wed, 30 Sep 2026 17:22:22 +0200 Message-ID: <20260930152448.860293207@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260930152434.301151190@linuxfoundation.org> References: <20260930152434.301151190@linuxfoundation.org> User-Agent: quilt/0.69 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 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Joe Damato commit 8e6a850c0746bb4be167aedf1ee57469fcda09a9 upstream. bnxt_init_rx_rings() returns an error when bnxt_alloc_one_rx_ring() fails, but bnxt_init_nic() discards that return value and calls bnxt_init_chip(), which enables TPA. If an allocation fails, this could leave rxr->rx_tpa[] partially zeroed and TPA would be enabled over an array with zeroed entries. This would lead to a zeroed DMA address being handed out if the agg_idx is translated to a SW index at a zeroed entry. Fix this by propagating the error out of bnxt_init_nic(). Both callers already check its return value and unwind with bnxt_free_skbs() and bnxt_free_mem(), which tolerate a partially initialized RX ring. Fixes: c0c050c58d84 ("bnxt_en: New Broadcom ethernet driver.") Reported-by: Sashiko Link: https://netdev-ai.bots.linux.dev/sashiko/#/patchset/20260828190900.1767611-1-joe%40dama.to Cc: stable@vger.kernel.org Signed-off-by: Joe Damato Link: https://patch.msgid.link/20260902015652.2421609-6-joe@dama.to Signed-off-by: Paolo Abeni Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -8946,8 +8946,13 @@ static int bnxt_shutdown_nic(struct bnxt static int bnxt_init_nic(struct bnxt *bp, bool irq_re_init) { + int rc; + bnxt_init_cp_rings(bp); - bnxt_init_rx_rings(bp); + rc = bnxt_init_rx_rings(bp); + if (rc) + return rc; + bnxt_init_tx_rings(bp); bnxt_init_ring_grps(bp, irq_re_init); bnxt_init_vnics(bp);