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authorLi Zefan <lizf@cn.fujitsu.com>2010-01-14 05:54:11 +0300
committerSteven Rostedt <rostedt@goodmis.org>2010-01-15 06:38:11 +0300
commitb2af211f284eb1bef19fbb85fc8ef551bb1e7460 (patch)
tree251b3848de7478ad9123c92fc7c95a464bd84f78 /kernel
parentd5f1fb53353edc38da326445267c1df0c9676df2 (diff)
downloadlinux-b2af211f284eb1bef19fbb85fc8ef551bb1e7460.tar.xz
tracing/filters: Fix MATCH_MIDDLE_ONLY filter matching
The @str might not be NULL-terminated if it's of type DYN_STRING or STATIC_STRING, so we should use strnstr() instead of strstr(). Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> LKML-Reference: <4B4E8753.2000102@cn.fujitsu.com> Acked-by: Frederic Weisbecker <fweisbec@gmail.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/trace/trace_events_filter.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c
index 49e44dd17851..f364b085397e 100644
--- a/kernel/trace/trace_events_filter.c
+++ b/kernel/trace/trace_events_filter.c
@@ -268,7 +268,7 @@ static int regex_match_front(char *str, struct regex *r, int len)
static int regex_match_middle(char *str, struct regex *r, int len)
{
- if (strstr(str, r->pattern))
+ if (strnstr(str, r->pattern, len))
return 1;
return 0;
}