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(sw-mtx-016.mtx.labs.mlnx [10.9.150.102]) by mtl123.mtl.labs.mlnx (8.14.4/8.14.4) with ESMTP id 316NOQwr003953; Tue, 7 Feb 2023 01:24:27 +0200 From: Bodong Wang To: Subject: [SRU][F:linux-bluefield][PATCH 1/3] netfilter: nf_tables: constify nft_reg_load{8, 16, 64}() Date: Mon, 6 Feb 2023 17:24:23 -0600 Message-ID: <1675725865-3724-2-git-send-email-bodong@nvidia.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1675725865-3724-1-git-send-email-bodong@nvidia.com> References: <1675725865-3724-1-git-send-email-bodong@nvidia.com> MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CY4PEPF0000C966:EE_|PH8PR12MB7231:EE_ X-MS-Office365-Filtering-Correlation-Id: 853b1281-86fe-412c-1520-08db0899529d X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: o1R/nyWuey0eAvElEhKTl3PTbTGA9QRDGWQbI+dslGHaVcZmeQEsiaDRvagycfUFxdvTmw6FsbbfrDpuI7PZlV7Akss8LocZaf/hzJw7QDUzn1F77uhYYUikxdU/mRZDS/KI45Kghc/sOIpj25gYQhWe9ym5qEXH995CA4SPkt2OP+myN+AMYi/J5D4IEEH73dCZ6JdSKqpUw5O2ePd6YzgA97h16elxA8tWVdQEHLoor8AeuSw4Sv6Eu3CzQlAobQn7m/22LdkpFCq7pnJ3QzTBeXnZwv8ZyzqXbJdlcF7i5dN3dBtp1huMDn+2OUR5XtPm71GDqgbmstAhuVfPbQCUOXbabPWuqn095y3asfmSGfm0dcK2rTrZi61O+NsmnEU3Ls+Iimzm8oVsxglrYU8scm1owPUHmGoA/s3CfcFxvghwsSslV7f+PdtBjgUjecGfKWKJezP8mUBf0/wCZoCtEaArsa5RhsuGG/CrDkv2PtqSJh5B6tLPt8ARNLEy9mISMLoz85xuzERlZygdJxAZ6CK9T62JXLgxDhJ7zmCfdMHaW9vZYMytG6YAPBDyS+FHV5Vvxz/bdoic96uiZJodUv0lum6kQwlV1p1YRCntFz5t1+Pdh4WsLS5SafNeRBjPq9WYeuFx+36dmsd2coICF5HQCPsMeCrnx0Nj0JVAK4wRSFS/w3alAzOt0Z33C9xgOYs71zl/oeF8BAJVmZfXtYDBpbp87QKwBU0bW7xK+oj+jecAfNdzkd9KlcX9H7hzWEd80vmv3/pPK9TRpdZborJ4Dler2qjbT/Mcotk= X-Forefront-Antispam-Report: CIP:216.228.118.232; CTRY:US; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:mail.nvidia.com; PTR:dc7edge1.nvidia.com; CAT:NONE; SFS:(13230025)(4636009)(39860400002)(376002)(396003)(136003)(346002)(451199018)(40470700004)(36840700001)(46966006)(40460700003)(4326008)(70206006)(70586007)(8676002)(6916009)(83380400001)(41300700001)(316002)(54906003)(8936002)(47076005)(36756003)(186003)(356005)(5660300002)(26005)(36860700001)(40480700001)(2906002)(107886003)(7636003)(86362001)(336012)(82740400003)(82310400005)(2616005)(6666004)(478600001)(966005); DIR:OUT; SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 06 Feb 2023 23:24:41.1008 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 853b1281-86fe-412c-1520-08db0899529d X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a; Ip=[216.228.118.232]; Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: CY4PEPF0000C966.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH8PR12MB7231 X-BeenThere: kernel-team@lists.ubuntu.com X-Mailman-Version: 2.1.20 Precedence: list List-Id: Kernel team discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: vlad@nvidia.com, bodong@nvidia.com, witu@nvidia.com Errors-To: kernel-team-bounces@lists.ubuntu.com Sender: "kernel-team" From: Pablo Neira Ayuso BugLink: https://bugs.launchpad.net/bugs/2006397 This patch constifies the pointer to source register data that is passed as an input parameter. Signed-off-by: Pablo Neira Ayuso Signed-off-by: David S. Miller (cherry picked from commit 7cd9a58d6860ae09acd7f0c219b5fa333703f72f) Signed-off-by: Bodong Wang --- include/net/netfilter/nf_tables.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h index eb8b1af..0fc1db6 100644 --- a/include/net/netfilter/nf_tables.h +++ b/include/net/netfilter/nf_tables.h @@ -114,7 +114,7 @@ static inline void nft_reg_store8(u32 *dreg, u8 val) *(u8 *)dreg = val; } -static inline u8 nft_reg_load8(u32 *sreg) +static inline u8 nft_reg_load8(const u32 *sreg) { return *(u8 *)sreg; } @@ -125,7 +125,7 @@ static inline void nft_reg_store16(u32 *dreg, u16 val) *(u16 *)dreg = val; } -static inline u16 nft_reg_load16(u32 *sreg) +static inline u16 nft_reg_load16(const u32 *sreg) { return *(u16 *)sreg; } @@ -135,7 +135,7 @@ static inline void nft_reg_store64(u32 *dreg, u64 val) put_unaligned(val, (u64 *)dreg); } -static inline u64 nft_reg_load64(u32 *sreg) +static inline u64 nft_reg_load64(const u32 *sreg) { return get_unaligned((u64 *)sreg); 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Fixes: 665153ff5752 ("netfilter: nf_tables: add bitmap set type") Signed-off-by: Pablo Neira Ayuso Signed-off-by: Bodong Wang --- net/netfilter/nft_set_bitmap.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/netfilter/nft_set_bitmap.c b/net/netfilter/nft_set_bitmap.c index 1cb2e67..6829a49 100644 --- a/net/netfilter/nft_set_bitmap.c +++ b/net/netfilter/nft_set_bitmap.c @@ -81,6 +81,7 @@ static bool nft_bitmap_lookup(const struct net *net, const struct nft_set *set, u32 idx, off; nft_bitmap_location(set, key, &idx, &off); + *ext = NULL; return nft_bitmap_active(priv->bitmap, idx, off, genmask); } From patchwork Mon Feb 6 23:24:25 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bodong Wang X-Patchwork-Id: 1738522 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.ubuntu.com (client-ip=91.189.94.19; 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Otherwise, the NFT_LOOKUP_F_INV flag reverses the matching logic and it leads to deference an uninitialized pointer to the matching element. Make sure element data area and stateful expression are accessed if there is a matching set element. This patch undoes 24791b9aa1ab ("netfilter: nft_set_bitmap: initialize set element extension in lookups") which is not required anymore. Fixes: 339706bc21c1 ("netfilter: nft_lookup: update element stateful expression") Signed-off-by: Pablo Neira Ayuso (cherry picked from commit a26c1e49c8e97922edc8d7e23683384729d09f77) Signed-off-by: Bodong Wang --- include/net/netfilter/nf_tables.h | 2 +- net/netfilter/nft_lookup.c | 12 +++++++----- 2 files changed, 8 insertions(+), 6 deletions(-) diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h index 0fc1db6..9453e69 100644 --- a/include/net/netfilter/nf_tables.h +++ b/include/net/netfilter/nf_tables.h @@ -904,7 +904,7 @@ static inline void nft_set_elem_update_expr(const struct nft_set_ext *ext, { struct nft_expr *expr; - if (nft_set_ext_exists(ext, NFT_SET_EXT_EXPR)) { + if (__nft_set_ext_exists(ext, NFT_SET_EXT_EXPR)) { expr = nft_set_ext_expr(ext); expr->ops->eval(expr, regs, pkt); } diff --git a/net/netfilter/nft_lookup.c b/net/netfilter/nft_lookup.c index 1e70359..f1363b8 100644 --- a/net/netfilter/nft_lookup.c +++ b/net/netfilter/nft_lookup.c @@ -29,7 +29,7 @@ void nft_lookup_eval(const struct nft_expr *expr, { const struct nft_lookup *priv = nft_expr_priv(expr); const struct nft_set *set = priv->set; - const struct nft_set_ext *ext; + const struct nft_set_ext *ext = NULL; bool found; found = set->ops->lookup(nft_net(pkt), set, ®s->data[priv->sreg], @@ -39,11 +39,13 @@ void nft_lookup_eval(const struct nft_expr *expr, return; } - if (set->flags & NFT_SET_MAP) - nft_data_copy(®s->data[priv->dreg], - nft_set_ext_data(ext), set->dlen); + if (ext) { + if (set->flags & NFT_SET_MAP) + nft_data_copy(®s->data[priv->dreg], + nft_set_ext_data(ext), set->dlen); - nft_set_elem_update_expr(ext, regs, pkt); + nft_set_elem_update_expr(ext, regs, pkt); + } } static const struct nla_policy nft_lookup_policy[NFTA_LOOKUP_MAX + 1] = {