This patch fixes a segfault that occured when a ipaccess RSL link gets
closed unexpectedly.
The segfault can be provoked by connecting to the RSL port with ncat and
hitting ^C.
---
openbsc/src/libabis/input/ipaccess.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/openbsc/src/libabis/input/ipaccess.c
b/openbsc/src/libabis/input/ipaccess.c
index 1427118..cc2a7a0 100644
--- a/openbsc/src/libabis/input/ipaccess.c
+++ b/openbsc/src/libabis/input/ipaccess.c
@@ -429,12 +429,15 @@ static int ipaccess_drop(struct e1inp_ts *ts, struct
osmo_fd *bfd)
struct e1inp_sign_link *link;
int bts_nr;
- if (!ts) {
+ if (!ts || !bfd->data) {
/*
* If we don't have a TS this means that this is a RSL
* connection but we are not past the authentication
* handling yet. So we can safely delete this bfd and
* wait for a reconnect.
+ * If we don't have bfd->data this means that a RSL
+ * connection was accept()ed, but nothing was recv()ed
+ * and the connection gets close()ed.
*/
osmo_fd_unregister(bfd);
close(bfd->fd);
--
1.7.5.rc3
