This is a note to let you know that I've just added the patch titled
perf scripting: Avoid leaking the scripting_context variable
to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
perf-scripting-avoid-leaking-the-scripting_context-variable.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From cf346d5bd4b9d61656df2f72565c9b354ef3ca0d Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Date: Tue, 25 Oct 2016 17:20:47 -0300
Subject: perf scripting: Avoid leaking the scripting_context variable
From: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
commit cf346d5bd4b9d61656df2f72565c9b354ef3ca0d upstream.
Both register_perl_scripting() and register_python_scripting() allocate
this variable, fix it by checking if it already was.
Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Tom Zanussi <tzanussi@xxxxxxxxx>
Cc: Wang Nan <wangnan0@xxxxxxxxxx>
Fixes: 7e4b21b84c43 ("perf/scripts: Add Python scripting engine")
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
tools/perf/util/trace-event-scripting.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
--- a/tools/perf/util/trace-event-scripting.c
+++ b/tools/perf/util/trace-event-scripting.c
@@ -95,7 +95,8 @@ static void register_python_scripting(st
if (err)
die("error registering py script extension");
- scripting_context = malloc(sizeof(struct scripting_context));
+ if (scripting_context == NULL)
+ scripting_context = malloc(sizeof(*scripting_context));
}
#ifdef NO_LIBPYTHON
@@ -159,7 +160,8 @@ static void register_perl_scripting(stru
if (err)
die("error registering pl script extension");
- scripting_context = malloc(sizeof(struct scripting_context));
+ if (scripting_context == NULL)
+ scripting_context = malloc(sizeof(*scripting_context));
}
#ifdef NO_LIBPERL
Patches currently in stable-queue which might be from acme@xxxxxxxxxx are
queue-4.4/perf-scripting-avoid-leaking-the-scripting_context-variable.patch
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