From c27899b15bca6188d34c0b87b3389eeda2a90cb5 Mon Sep 17 00:00:00 2001 From: Jerome Marchand 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