From: Phil Sutter <phil@nwl.cc>
To: Pablo Neira Ayuso <pablo@netfilter.org>
Cc: netfilter-devel@vger.kernel.org
Subject: [nft PATCH 05/10] netlink: Avoid memleak in error path of netlink_delinearize_set()
Date: Fri, 11 Jun 2021 18:40:59 +0200 [thread overview]
Message-ID: <20210611164104.8121-6-phil@nwl.cc> (raw)
In-Reply-To: <20210611164104.8121-1-phil@nwl.cc>
Duplicate string 'comment' later when the function does not fail
anymore.
Fixes: 0864c2d49ee8a ("src: add comment support for set declarations")
Signed-off-by: Phil Sutter <phil@nwl.cc>
---
src/netlink.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/src/netlink.c b/src/netlink.c
index e91b06e3ea971..41cce3379ca50 100644
--- a/src/netlink.c
+++ b/src/netlink.c
@@ -867,7 +867,7 @@ struct set *netlink_delinearize_set(struct netlink_ctx *ctx,
if (ud[NFTNL_UDATA_SET_DATA_TYPEOF])
typeof_expr_data = set_make_key(ud[NFTNL_UDATA_SET_DATA_TYPEOF]);
if (ud[NFTNL_UDATA_SET_COMMENT])
- comment = xstrdup(nftnl_udata_get(ud[NFTNL_UDATA_SET_COMMENT]));
+ comment = nftnl_udata_get(ud[NFTNL_UDATA_SET_COMMENT]);
}
key = nftnl_set_get_u32(nls, NFTNL_SET_KEY_TYPE);
@@ -905,7 +905,7 @@ struct set *netlink_delinearize_set(struct netlink_ctx *ctx,
set->handle.set.name = xstrdup(nftnl_set_get_str(nls, NFTNL_SET_NAME));
set->automerge = automerge;
if (comment)
- set->comment = comment;
+ set->comment = xstrdup(comment);
init_list_head(&set_parse_ctx.stmt_list);
--
2.31.1
next prev parent reply other threads:[~2021-06-11 16:41 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-11 16:40 [nft PATCH 00/10] Some covscan fixes Phil Sutter
2021-06-11 16:40 ` [nft PATCH 01/10] parser_bison: Fix for implicit declaration of isalnum Phil Sutter
2021-06-11 16:40 ` [nft PATCH 02/10] parser_json: Fix for memleak in tcp option error path Phil Sutter
2021-06-11 16:40 ` [nft PATCH 03/10] evaluate: Mark fall through case in str2hooknum() Phil Sutter
2021-06-11 16:40 ` [nft PATCH 04/10] json: Drop pointless assignment in exthdr_expr_json() Phil Sutter
2021-06-11 16:40 ` Phil Sutter [this message]
2021-06-11 16:41 ` [nft PATCH 06/10] netlink: Avoid memleak in error path of netlink_delinearize_chain() Phil Sutter
2021-06-11 16:41 ` [nft PATCH 07/10] netlink: Avoid memleak in error path of netlink_delinearize_table() Phil Sutter
2021-06-11 16:41 ` [nft PATCH 08/10] netlink: Avoid memleak in error path of netlink_delinearize_obj() Phil Sutter
2021-06-11 16:41 ` [nft PATCH 09/10] netlink_delinearize: Fix suspicious calloc() call Phil Sutter
2021-06-11 16:41 ` [nft PATCH 10/10] rule: Fix for potential off-by-one in cmd_add_loc() Phil Sutter
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