diff options
| author | Ziyang Xuan <william.xuanziyang@huawei.com> | 2022-11-20 10:28:38 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-12-02 19:40:01 +0300 |
| commit | aeebb074997251c150d042a33a8673bfea53c247 (patch) | |
| tree | 9779705a2d68fee89ae663b5a1c68d46644a940a /net/ipv4 | |
| parent | c0af4d005a260a5f93b5784d6dc26e2cd2ef18dd (diff) | |
| download | linux-aeebb074997251c150d042a33a8673bfea53c247.tar.xz | |
ipv4: Fix error return code in fib_table_insert()
[ Upstream commit 568fe84940ac0e4e0b2cd7751b8b4911f7b9c215 ]
In fib_table_insert(), if the alias was already inserted, but node not
exist, the error code should be set before return from error handling path.
Fixes: a6c76c17df02 ("ipv4: Notify route after insertion to the routing table")
Signed-off-by: Ziyang Xuan <william.xuanziyang@huawei.com>
Link: https://lore.kernel.org/r/20221120072838.2167047-1-william.xuanziyang@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/fib_trie.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c index a28f525e2c47..d11fb16234a6 100644 --- a/net/ipv4/fib_trie.c +++ b/net/ipv4/fib_trie.c @@ -1331,8 +1331,10 @@ int fib_table_insert(struct net *net, struct fib_table *tb, /* The alias was already inserted, so the node must exist. */ l = l ? l : fib_find_node(t, &tp, key); - if (WARN_ON_ONCE(!l)) + if (WARN_ON_ONCE(!l)) { + err = -ENOENT; goto out_free_new_fa; + } if (fib_find_alias(&l->leaf, new_fa->fa_slen, 0, 0, tb->tb_id, true) == new_fa) { |