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31 lines
1.2 KiB
31 lines
1.2 KiB
11 months ago
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From c27899b15bca6188d34c0b87b3389eeda2a90cb5 Mon Sep 17 00:00:00 2001
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From: Jerome Marchand <jmarchan@redhat.com>
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Date: Mon, 9 Jan 2023 18:17:20 +0100
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Subject: [PATCH] Fix get_kprobe_functions
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get_kprobe_functions will not only return a function that matches the
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regular expression, but also any function that starts with a
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substrings that matches it. This is obviously not the intended
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behavior.
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The issue is easily fixed by replacing re.match by re.fullmatch.
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---
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src/python/bcc/__init__.py | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/src/python/bcc/__init__.py b/src/python/bcc/__init__.py
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index 7175b98e..970ddcc2 100644
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--- a/src/python/bcc/__init__.py
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+++ b/src/python/bcc/__init__.py
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@@ -745,7 +745,7 @@ DEBUG_BTF = 0x20
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# Exclude all gcc 8's extra .cold functions
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elif re.match(b'^.*\.cold(\.\d+)?$', fn):
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continue
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- if (t.lower() in [b't', b'w']) and re.match(event_re, fn) \
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+ if (t.lower() in [b't', b'w']) and re.fullmatch(event_re, fn) \
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and fn not in blacklist:
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fns.append(fn)
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return set(fns) # Some functions may appear more than once
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--
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2.38.1
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