path: root/lib
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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-12-03 08:15:36 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-12-03 08:15:36 -0800
commit8002cedc1adbf51e2d56091534ef7551b88329b4 (patch)
tree2c65c82b2b5300eac581a0ee794d98f0b61593b6 /lib
parentMerge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/netdev-2.6 (diff)
parent[INET]: Fix inet_diag dead-lock regression (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/net-2.6: (27 commits) [INET]: Fix inet_diag dead-lock regression [NETNS]: Fix /proc/net breakage [TEXTSEARCH]: Do not allow zero length patterns in the textsearch infrastructure [NETFILTER]: fix forgotten module release in xt_CONNMARK and xt_CONNSECMARK [NETFILTER]: xt_TCPMSS: remove network triggerable WARN_ON [DECNET]: dn_nl_deladdr() almost always returns no error [IPV6]: Restore IPv6 when MTU is big enough [RXRPC]: Add missing select on CRYPTO mac80211: rate limit wep decrypt failed messages rfkill: fix double-mutex-locking mac80211: drop unencrypted frames if encryption is expected mac80211: Fix behavior of ieee80211_open and ieee80211_close ieee80211: fix unaligned access in ieee80211_copy_snap mac80211: free ifsta->extra_ie and clear IEEE80211_STA_PRIVACY_INVOKED SCTP: Fix build issues with SCTP AUTH. SCTP: Fix chunk acceptance when no authenticated chunks were listed. SCTP: Fix the supported extensions paramter SCTP: Fix SCTP-AUTH to correctly add HMACS paramter. SCTP: Fix the number of HB transmissions. [TCP] illinois: Incorrect beta usage ...
Diffstat (limited to 'lib')
1 files changed, 6 insertions, 2 deletions
diff --git a/lib/textsearch.c b/lib/textsearch.c
index 88c98a2ec8d9..be8bda3862f5 100644
--- a/lib/textsearch.c
+++ b/lib/textsearch.c
@@ -7,7 +7,7 @@
* 2 of the License, or (at your option) any later version.
* Authors: Thomas Graf <tgraf@suug.ch>
- * Pablo Neira Ayuso <pablo@eurodev.net>
+ * Pablo Neira Ayuso <pablo@netfilter.org>
* ==========================================================================
@@ -250,7 +250,8 @@ unsigned int textsearch_find_continuous(struct ts_config *conf,
* the various search algorithms.
* Returns a new textsearch configuration according to the specified
- * parameters or a ERR_PTR().
+ * parameters or a ERR_PTR(). If a zero length pattern is passed, this
+ * function returns EINVAL.
struct ts_config *textsearch_prepare(const char *algo, const void *pattern,
unsigned int len, gfp_t gfp_mask, int flags)
@@ -259,6 +260,9 @@ struct ts_config *textsearch_prepare(const char *algo, const void *pattern,
struct ts_config *conf;
struct ts_ops *ops;
+ if (len == 0)
+ return ERR_PTR(-EINVAL);
ops = lookup_ts_algo(algo);