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| author | Martin Schiller <ms@dev.tdt.de> | 2018-11-27 09:50:28 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-12-17 20:38:25 +0100 |
| commit | 87989217d997b31478e5e43e97886fcfbefa7469 (patch) | |
| tree | aceb132fc964feaa6705eac6894bf8dcf923685d | |
| parent | fdda36a1dd007f0bbfccc1f3f4b71a4d5a5e0ced (diff) | |
| download | linux-stable-87989217d997b31478e5e43e97886fcfbefa7469.tar.gz linux-stable-87989217d997b31478e5e43e97886fcfbefa7469.tar.bz2 linux-stable-87989217d997b31478e5e43e97886fcfbefa7469.zip | |
net/x25: fix null_x25_address handling
[ Upstream commit 06137619f061f498c2924f6543fa45b7d39f0501 ]
o x25_find_listener(): the compare for the null_x25_address was wrong.
We have to check the x25_addr of the listener socket instead of the
x25_addr of the incomming call.
o x25_bind(): it was not possible to bind a socket to null_x25_address
Signed-off-by: Martin Schiller <ms@dev.tdt.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | net/x25/af_x25.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c index 6e7ad4c6f83c..a156b6dc3a72 100644 --- a/net/x25/af_x25.c +++ b/net/x25/af_x25.c @@ -288,7 +288,7 @@ static struct sock *x25_find_listener(struct x25_address *addr, sk_for_each(s, &x25_list) if ((!strcmp(addr->x25_addr, x25_sk(s)->source_addr.x25_addr) || - !strcmp(addr->x25_addr, + !strcmp(x25_sk(s)->source_addr.x25_addr, null_x25_address.x25_addr)) && s->sk_state == TCP_LISTEN) { /* @@ -684,11 +684,15 @@ static int x25_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len) goto out; } - len = strlen(addr->sx25_addr.x25_addr); - for (i = 0; i < len; i++) { - if (!isdigit(addr->sx25_addr.x25_addr[i])) { - rc = -EINVAL; - goto out; + /* check for the null_x25_address */ + if (strcmp(addr->sx25_addr.x25_addr, null_x25_address.x25_addr)) { + + len = strlen(addr->sx25_addr.x25_addr); + for (i = 0; i < len; i++) { + if (!isdigit(addr->sx25_addr.x25_addr[i])) { + rc = -EINVAL; + goto out; + } } } |