linux-kernel - [PATCH v2 1/2] tracing: add missing trace_probe_log

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20250502-fix-trace-probe-log-race-v2-1-511ecc1521ec@gmail.com>
Date: Fri, 02 May 2025 15:15:52 +0200
From: Paul Cacheux via B4 Relay <devnull+paulcacheux.gmail.com@...nel.org>
To: Steven Rostedt <rostedt@...dmis.org>, 
 Masami Hiramatsu <mhiramat@...nel.org>, 
 Mathieu Desnoyers <mathieu.desnoyers@...icios.com>, 
 Namhyung Kim <namhyung@...nel.org>
Cc: linux-kernel@...r.kernel.org, linux-trace-kernel@...r.kernel.org, 
 Paul Cacheux <paulcacheux@...il.com>
Subject: [PATCH v2 1/2] tracing: add missing trace_probe_log_clear for
 eprobes

From: Paul Cacheux <paulcacheux@...il.com>

Make sure trace_probe_log_clear is called in the tracing
eprobe code path, matching the trace_probe_log_init call.

Signed-off-by: Paul Cacheux <paulcacheux@...il.com>
---
 kernel/trace/trace_eprobe.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/kernel/trace/trace_eprobe.c b/kernel/trace/trace_eprobe.c
index c08355c3ef32b4124ac944d7e3a03efb66492269..916555f0de811f03feed9d923c63078b0e4c993b 100644
--- a/kernel/trace/trace_eprobe.c
+++ b/kernel/trace/trace_eprobe.c
@@ -969,10 +969,13 @@ static int __trace_eprobe_create(int argc, const char *argv[])
 			goto error;
 		}
 	}
+	trace_probe_log_clear();
 	return ret;
+
 parse_error:
 	ret = -EINVAL;
 error:
+	trace_probe_log_clear();
 	trace_event_probe_cleanup(ep);
 	return ret;
 }

-- 
2.49.0