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authorPavel Emelyanov <xemul@openvz.org>2008-04-12 18:33:50 -0700
committerDavid S. Miller <davem@davemloft.net>2008-04-12 18:33:50 -0700
commitae1b6a31b1f9ef2c7ba5ef89799f210a9ba6937c (patch)
tree76f26c291c480345de8d70a6c37143c43ac5f749 /net/ax25/ax25_uid.c
parent2de58e30db3f7e83592e22fb459dd6695b648889 (diff)
downloadvexpress-lsk-ae1b6a31b1f9ef2c7ba5ef89799f210a9ba6937c.tar.gz
[AX25]: Potential ax25_uid_assoc-s leaks on module unload.
The ax25_uid_free call walks the ax25_uid_list and releases entries from it. The problem is that after the fisrt call to hlist_del_init the hlist_for_each_entry (which hides behind the ax25_uid_for_each) will consider the current position to be the last and will return. Thus, the whole list will be left not freed. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ax25/ax25_uid.c')
-rw-r--r--net/ax25/ax25_uid.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/ax25/ax25_uid.c b/net/ax25/ax25_uid.c
index 5f4eb73fb9d..57aeba729ba 100644
--- a/net/ax25/ax25_uid.c
+++ b/net/ax25/ax25_uid.c
@@ -218,9 +218,11 @@ void __exit ax25_uid_free(void)
struct hlist_node *node;
write_lock(&ax25_uid_lock);
+again:
ax25_uid_for_each(ax25_uid, node, &ax25_uid_list) {
hlist_del_init(&ax25_uid->uid_node);
ax25_uid_put(ax25_uid);
+ goto again;
}
write_unlock(&ax25_uid_lock);
}