TEXTSEARCH: Do not allow zero length patterns in the textsearch infrastructure
commitaa53617cb1a0083372b4b6440587ca703e4dddaf
authorPablo Neira Ayuso <pablo@netfilter.org>
Tue, 11 Dec 2007 01:39:38 +0000 (11 09:39 +0800)
committerGreg Kroah-Hartman <gregkh@suse.de>
Fri, 14 Dec 2007 17:51:06 +0000 (14 09:51 -0800)
tree2e90d39dfb21d86df5dd074f7bea7dcd2c12d7a0
parent7f6f99bcb122a89b29e927f9209836d492adbd63
TEXTSEARCH: Do not allow zero length patterns in the textsearch infrastructure

[TEXTSEARCH]: Do not allow zero length patterns in the textsearch infrastructure

[ Upstream commit: e03ba84adb62fbc6049325a5bc00ef6932fa5e39 ]

If a zero length pattern is passed then return EINVAL.
Avoids infinite loops (bm) or invalid memory accesses (kmp).

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
lib/textsearch.c