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authorPatrick McHardy <kaber@trash.net>2006-07-31 23:47:31 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2006-08-02 13:38:29 -0700
commit3ab720881b6e36bd5190a3a11cee8d8d067c4ad7 (patch)
tree7c0b9542623555a85476ede5e2a5a5d2c9c734a2 /net/ipv4
parentb10866fd7dd9ae9b8dd03646d28702a76d624474 (diff)
[NETFILTER]: xt_hashlimit/xt_string: missing string validation
The hashlimit table name and the textsearch algorithm need to be terminated, the textsearch pattern length must not exceed the maximum size. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4')
-rw-r--r--net/ipv4/netfilter/ipt_hashlimit.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/ipv4/netfilter/ipt_hashlimit.c b/net/ipv4/netfilter/ipt_hashlimit.c
index 92980ab8ce4..6b662449e82 100644
--- a/net/ipv4/netfilter/ipt_hashlimit.c
+++ b/net/ipv4/netfilter/ipt_hashlimit.c
@@ -508,6 +508,9 @@ hashlimit_checkentry(const char *tablename,
if (!r->cfg.expire)
return 0;
+ if (r->name[sizeof(r->name) - 1] != '\0')
+ return 0;
+
/* This is the best we've got: We cannot release and re-grab lock,
* since checkentry() is called before ip_tables.c grabs ipt_mutex.
* We also cannot grab the hashtable spinlock, since htable_create will