58 lines
1.9 KiB
Diff
58 lines
1.9 KiB
Diff
From b5fd150a3fbad94381276bedc816d4a6fdecfaf9 Mon Sep 17 00:00:00 2001
|
|
From: Phil Sutter <psutter@redhat.com>
|
|
Date: Tue, 21 Feb 2023 19:50:41 +0100
|
|
Subject: [PATCH] mnl: dump_nf_hooks() leaks memory in error path
|
|
|
|
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2211076
|
|
Upstream Status: nftables commit ef66f321e49b3
|
|
|
|
commit ef66f321e49b337c7e678bb90d6acb94f331dfc4
|
|
Author: Phil Sutter <phil@nwl.cc>
|
|
Date: Wed Jan 11 12:28:15 2023 +0100
|
|
|
|
mnl: dump_nf_hooks() leaks memory in error path
|
|
|
|
Have to free the basehook object before returning to caller.
|
|
|
|
Fixes: 4694f7230195b ("src: add support for base hook dumping")
|
|
Signed-off-by: Phil Sutter <phil@nwl.cc>
|
|
|
|
Signed-off-by: Phil Sutter <psutter@redhat.com>
|
|
---
|
|
src/mnl.c | 11 +++++++++--
|
|
1 file changed, 9 insertions(+), 2 deletions(-)
|
|
|
|
diff --git a/src/mnl.c b/src/mnl.c
|
|
index 7dd77be..269d3f1 100644
|
|
--- a/src/mnl.c
|
|
+++ b/src/mnl.c
|
|
@@ -2211,16 +2211,23 @@ static int dump_nf_hooks(const struct nlmsghdr *nlh, void *_data)
|
|
struct nlattr *nested[NFNLA_HOOK_INFO_MAX + 1] = {};
|
|
uint32_t type;
|
|
|
|
- if (mnl_attr_parse_nested(tb[NFNLA_HOOK_CHAIN_INFO], dump_nf_chain_info_cb, nested) < 0)
|
|
+ if (mnl_attr_parse_nested(tb[NFNLA_HOOK_CHAIN_INFO],
|
|
+ dump_nf_chain_info_cb, nested) < 0) {
|
|
+ basehook_free(hook);
|
|
return -1;
|
|
+ }
|
|
|
|
type = ntohl(mnl_attr_get_u32(nested[NFNLA_HOOK_INFO_TYPE]));
|
|
if (type == NFNL_HOOK_TYPE_NFTABLES) {
|
|
struct nlattr *info[NFNLA_CHAIN_MAX + 1] = {};
|
|
const char *tablename, *chainname;
|
|
|
|
- if (mnl_attr_parse_nested(nested[NFNLA_HOOK_INFO_DESC], dump_nf_attr_chain_cb, info) < 0)
|
|
+ if (mnl_attr_parse_nested(nested[NFNLA_HOOK_INFO_DESC],
|
|
+ dump_nf_attr_chain_cb,
|
|
+ info) < 0) {
|
|
+ basehook_free(hook);
|
|
return -1;
|
|
+ }
|
|
|
|
tablename = mnl_attr_get_str(info[NFNLA_CHAIN_TABLE]);
|
|
chainname = mnl_attr_get_str(info[NFNLA_CHAIN_NAME]);
|
|
--
|
|
2.41.0.rc1
|
|
|