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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> | 2019-12-13 08:52:15 +0100 |
commit | d094d6510231b1ebafe6cc651507a62206f0ca72 (patch) | |
tree | ac5fabf80d1d9950a95b40c832727a7db79d359c /net | |
parent | 12fc4bcc89ef5b34a8fdd8df6b674e055be09a17 (diff) | |
download | linux-stable-d094d6510231b1ebafe6cc651507a62206f0ca72.tar.gz linux-stable-d094d6510231b1ebafe6cc651507a62206f0ca72.tar.bz2 linux-stable-d094d6510231b1ebafe6cc651507a62206f0ca72.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>
Diffstat (limited to 'net')
-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 3150648206b6..20a511398389 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) { /* @@ -685,11 +685,15 @@ 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; + } } } |