linux-kernel - RE: [Intel-wired-lan] [PATCH v2 02/25] docs: kdoc

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Message-ID: <IA3PR11MB8986BFC6B235096EDB0C726DE591A@IA3PR11MB8986.namprd11.prod.outlook.com>
Date: Wed, 28 Jan 2026 17:44:33 +0000
From: "Loktionov, Aleksandr" <aleksandr.loktionov@...el.com>
To: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>, Jonathan Corbet
	<corbet@....net>, Linux Doc Mailing List <linux-doc@...r.kernel.org>
CC: "bpf@...r.kernel.org" <bpf@...r.kernel.org>,
	"intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>, Peter Zijlstra
	<peterz@...radead.org>, Randy Dunlap <rdunlap@...radead.org>, "Stephen
 Rothwell" <sfr@...b.auug.org.au>
Subject: RE: [Intel-wired-lan] [PATCH v2 02/25] docs: kdoc_re: don't go past
 the end of a line



> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@...osl.org> On Behalf
> Of Mauro Carvalho Chehab
> Sent: Wednesday, January 28, 2026 5:50 PM
> To: Jonathan Corbet <corbet@....net>; Linux Doc Mailing List <linux-
> doc@...r.kernel.org>
> Cc: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>;
> bpf@...r.kernel.org; intel-wired-lan@...ts.osuosl.org; linux-
> kernel@...r.kernel.org; netdev@...r.kernel.org; Peter Zijlstra
> <peterz@...radead.org>; Randy Dunlap <rdunlap@...radead.org>; Stephen
> Rothwell <sfr@...b.auug.org.au>
> 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@...nel.org>
> Acked-by: Randy Dunlap <rdunlap@...radead.org>
> Tested-by: Randy Dunlap <rdunlap@...radead.org>
> ---
>  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
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@...el.com>