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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2022-02-22 16:43:12 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-03-02 11:38:11 +0100 |
| commit | 33f724448e055b615301c039df5638cce458d6ac (patch) | |
| tree | fc4228613ffe6b152113374f92920afacb2d72da /net/tipc | |
| parent | 1f4ae0f158dafa74133108bfa07b8053eb2a7898 (diff) | |
| download | linux-stable-33f724448e055b615301c039df5638cce458d6ac.tar.gz linux-stable-33f724448e055b615301c039df5638cce458d6ac.tar.bz2 linux-stable-33f724448e055b615301c039df5638cce458d6ac.zip | |
tipc: Fix end of loop tests for list_for_each_entry()
commit a1f8fec4dac8bc7b172b2bdbd881e015261a6322 upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/tipc')
| -rw-r--r-- | net/tipc/name_table.c | 2 | ||||
| -rw-r--r-- | net/tipc/socket.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/net/tipc/name_table.c b/net/tipc/name_table.c index 89993afe0fbd..059ffb8b466a 100644 --- a/net/tipc/name_table.c +++ b/net/tipc/name_table.c @@ -812,7 +812,7 @@ 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 848ae6dcbd82..6c18b4565ab5 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -3487,7 +3487,7 @@ 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 |