From: Li Zefan <lizf@cn.fujitsu.com>
To: Steven Rostedt <rostedt@goodmis.org>, Ingo Molnar <mingo@elte.hu>
Cc: Frederic Weisbecker <fweisbec@gmail.com>,
Wenji Huang <wenji.huang@oracle.com>,
LKML <linux-kernel@vger.kernel.org>
Subject: [PATCH 5/7] tracing/filters: Fix MATCH_MIDDLE_ONLY filter matching
Date: Mon, 14 Dec 2009 11:58:24 +0800 [thread overview]
Message-ID: <4B25B7E0.5000403@cn.fujitsu.com> (raw)
In-Reply-To: <4B25B797.1040201@cn.fujitsu.com>
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>
---
kernel/trace/trace_events_filter.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c
index 49e44dd..f364b08 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;
}
--
1.6.3
next prev parent reply other threads:[~2009-12-14 3:58 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-14 3:57 [PATCH 0/7] tracing: Fix bugs in string filters Li Zefan
2009-12-14 3:57 ` [PATCH 1/7] ftrace: Fix MATCH_END_ONLY function filter Li Zefan
2009-12-14 3:57 ` [PATCH 2/7] tracing/filters: Fix MATCH_FRONT_ONLY filter matching Li Zefan
2009-12-14 3:57 ` [PATCH 3/7] tracing/filters: Fix MATCH_END_ONLY " Li Zefan
2009-12-14 3:58 ` [PATCH 4/7] lib: Introduce strnstr() Li Zefan
2009-12-14 3:58 ` Li Zefan [this message]
2009-12-14 3:58 ` [PATCH 6/7] tracing/filters: Fix MATCH_END_ONLY filter matching for PTR_STRING Li Zefan
2009-12-14 3:59 ` [PATCH 7/7] tracing/filters: Add comment for match callbacks Li Zefan
2009-12-14 12:39 ` [PATCH 0/7] tracing: Fix bugs in string filters Frederic Weisbecker
2009-12-21 1:28 ` Li Zefan
2010-01-14 2:52 [PATCH 0/7][RESEND] " Li Zefan
2010-01-14 2:54 ` [PATCH 5/7] tracing/filters: Fix MATCH_MIDDLE_ONLY filter matching Li Zefan
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4B25B7E0.5000403@cn.fujitsu.com \
--to=lizf@cn.fujitsu.com \
--cc=fweisbec@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@elte.hu \
--cc=rostedt@goodmis.org \
--cc=wenji.huang@oracle.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).