From: Phil Sutter <phil@nwl.cc>
To: Pablo Neira Ayuso <pablo@netfilter.org>
Cc: netfilter-devel@vger.kernel.org
Subject: [nft PATCH 06/10] netlink: Avoid memleak in error path of netlink_delinearize_chain()
Date: Fri, 11 Jun 2021 18:41:00 +0200 [thread overview]
Message-ID: <20210611164104.8121-7-phil@nwl.cc> (raw)
In-Reply-To: <20210611164104.8121-1-phil@nwl.cc>
If parsing udata fails, 'chain' has to be freed before returning to
caller.
Fixes: 702ac2b72c0e8 ("src: add comment support for chains")
Signed-off-by: Phil Sutter <phil@nwl.cc>
---
src/netlink.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/src/netlink.c b/src/netlink.c
index 41cce3379ca50..1bbdf98bd2ee2 100644
--- a/src/netlink.c
+++ b/src/netlink.c
@@ -599,6 +599,7 @@ struct chain *netlink_delinearize_chain(struct netlink_ctx *ctx,
udata = nftnl_chain_get_data(nlc, NFTNL_CHAIN_USERDATA, &ulen);
if (nftnl_udata_parse(udata, ulen, chain_parse_udata_cb, ud) < 0) {
netlink_io_error(ctx, NULL, "Cannot parse userdata");
+ chain_free(chain);
return NULL;
}
if (ud[NFTNL_UDATA_CHAIN_COMMENT])
--
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 ` [nft PATCH 05/10] netlink: Avoid memleak in error path of netlink_delinearize_set() Phil Sutter
2021-06-11 16:41 ` Phil Sutter [this message]
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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