-----Original Message-----
From: Intel-wired-lan <redacted> On Behalf
Of Mauro Carvalho Chehab
Sent: Wednesday, January 28, 2026 5:50 PM
To: Jonathan Corbet <corbet@lwn.net>; Linux Doc Mailing List <linux-
doc@vger.kernel.org>
Cc: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>;
bpf@vger.kernel.org; intel-wired-lan@lists.osuosl.org; linux-
kernel@vger.kernel.org; netdev@vger.kernel.org; Peter Zijlstra
[off-list ref]; Randy Dunlap [off-list ref]; Stephen
Rothwell [off-list ref]
Subject: [Intel-wired-lan] [PATCH v2 02/25] docs: kdoc_re: don't go
past the end of a line

The logic which checks if the line ends with ";" is currently
broken: it may try to read past the buffer.

Fix it by checking before trying to access line[pos].

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Acked-by: Randy Dunlap <redacted>
Tested-by: Randy Dunlap <redacted>
---
 tools/lib/python/kdoc/kdoc_re.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/lib/python/kdoc/kdoc_re.py

b/tools/lib/python/kdoc/kdoc_re.py
index 19e777e2c97e..a0402c065d3a 100644

--- a/tools/lib/python/kdoc/kdoc_re.py
+++ b/tools/lib/python/kdoc/kdoc_re.py

@@ -265,7 +265,7 @@ class NestedMatch:
             out += new_sub

             # Drop end ';' if any
-            if line[pos] == ';':
+            if pos < len(line) and line[pos] == ';':
                 pos += 1

             cur_pos = pos
--

2.52.0