From c27899b15bca6188d34c0b87b3389eeda2a90cb5 Mon Sep 17 00:00:00 2001
From: Jerome Marchand <jmarchan@redhat.com>
Date: Mon, 9 Jan 2023 18:17:20 +0100
Subject: [PATCH] Fix get_kprobe_functions

get_kprobe_functions will not only return a function that matches the
regular expression, but also any function that starts with a
substrings that matches it. This is obviously not the intended
behavior.
The issue is easily fixed by replacing re.match by re.fullmatch.
---
 src/python/bcc/__init__.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/python/bcc/__init__.py b/src/python/bcc/__init__.py
index 7175b98e..970ddcc2 100644
--- a/src/python/bcc/__init__.py
+++ b/src/python/bcc/__init__.py
@@ -745,7 +745,7 @@ DEBUG_BTF = 0x20
                 # Exclude all gcc 8's extra .cold functions
                 elif re.match(b'^.*\.cold(\.\d+)?$', fn):
                     continue
-                if (t.lower() in [b't', b'w']) and re.match(event_re, fn) \
+                if (t.lower() in [b't', b'w']) and re.fullmatch(event_re, fn) \
                     and fn not in blacklist:
                     fns.append(fn)
         return set(fns)     # Some functions may appear more than once
-- 
2.38.1