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authorDan Carpenter <dan.carpenter@oracle.com>2022-02-22 16:43:12 +0300
committerDavid S. Miller <davem@davemloft.net>2022-02-23 12:35:40 +0000
commita1f8fec4dac8bc7b172b2bdbd881e015261a6322 (patch)
tree84ecbf4763058ce5a74af824eb1af1bd588c6bbd /net/tipc
parentde7b2efacf4e83954aed3f029d347dfc0b7a4f49 (diff)
tipc: Fix end of loop tests for list_for_each_entry()
These tests are supposed to check if the loop exited via a break or not. However the tests are wrong because if we did not exit via a break then "p" is not a valid pointer. In that case, it's the equivalent of "if (*(u32 *)sr == *last_key) {". That's going to work most of the time, but there is a potential for those to be equal. Fixes: 1593123a6a49 ("tipc: add name table dump to new netlink api") Fixes: 1a1a143daf84 ("tipc: add publication dump to new netlink api") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/tipc')
-rw-r--r--net/tipc/name_table.c2
-rw-r--r--net/tipc/socket.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/net/tipc/name_table.c b/net/tipc/name_table.c
index 01396dd1c899..1d8ba233d047 100644
--- a/net/tipc/name_table.c
+++ b/net/tipc/name_table.c
@@ -967,7 +967,7 @@ static int __tipc_nl_add_nametable_publ(struct tipc_nl_msg *msg,
list_for_each_entry(p, &sr->all_publ, all_publ)
if (p->key == *last_key)
break;
- if (p->key != *last_key)
+ if (list_entry_is_head(p, &sr->all_publ, all_publ))
return -EPIPE;
} else {
p = list_first_entry(&sr->all_publ,
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index 3e63c83e641c..7545321c3440 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -3749,7 +3749,7 @@ static int __tipc_nl_list_sk_publ(struct sk_buff *skb,
if (p->key == *last_publ)
break;
}
- if (p->key != *last_publ) {
+ if (list_entry_is_head(p, &tsk->publications, binding_sock)) {
/* We never set seq or call nl_dump_check_consistent()
* this means that setting prev_seq here will cause the
* consistence check to fail in the netlink callback