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* [PATCH] modpost: check strdup() return value
@ 2018-08-14 20:50 Randy Dunlap
  2018-08-15  3:40 ` Masahiro Yamada
  0 siblings, 1 reply; 2+ messages in thread
From: Randy Dunlap @ 2018-08-14 20:50 UTC (permalink / raw)
  To: linux-kbuild, LKML; +Cc: Yuexing Wang, Masahiro Yamada

From: Randy Dunlap <rdunlap@infradead.org>

Fix missing error check for function strdup() in scripts/mod/modpost.c.

Fixes kernel bugzilla #200319:
https://bugzilla.kernel.org/show_bug.cgi?id=200319

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Yuexing Wang <wangyxlandq@gmail.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
---
 scripts/mod/modpost.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- linux-next-20180814.orig/scripts/mod/modpost.c
+++ linux-next-20180814/scripts/mod/modpost.c
@@ -672,7 +672,7 @@ static void handle_modversions(struct mo
 			if (ELF_ST_TYPE(sym->st_info) == STT_SPARC_REGISTER)
 				break;
 			if (symname[0] == '.') {
-				char *munged = strdup(symname);
+				char *munged = NOFAIL(strdup(symname));
 				munged[0] = '_';
 				munged[1] = toupper(munged[1]);
 				symname = munged;



^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: [PATCH] modpost: check strdup() return value
  2018-08-14 20:50 [PATCH] modpost: check strdup() return value Randy Dunlap
@ 2018-08-15  3:40 ` Masahiro Yamada
  0 siblings, 0 replies; 2+ messages in thread
From: Masahiro Yamada @ 2018-08-15  3:40 UTC (permalink / raw)
  To: Randy Dunlap; +Cc: linux-kbuild, LKML, Yuexing Wang

2018-08-15 5:50 GMT+09:00 Randy Dunlap <rdunlap@infradead.org>:
> From: Randy Dunlap <rdunlap@infradead.org>
>
> Fix missing error check for function strdup() in scripts/mod/modpost.c.
>
> Fixes kernel bugzilla #200319:
> https://bugzilla.kernel.org/show_bug.cgi?id=200319
>
> Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
> Cc: Yuexing Wang <wangyxlandq@gmail.com>
> Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
> ---
>  scripts/mod/modpost.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> --- linux-next-20180814.orig/scripts/mod/modpost.c
> +++ linux-next-20180814/scripts/mod/modpost.c
> @@ -672,7 +672,7 @@ static void handle_modversions(struct mo
>                         if (ELF_ST_TYPE(sym->st_info) == STT_SPARC_REGISTER)
>                                 break;
>                         if (symname[0] == '.') {
> -                               char *munged = strdup(symname);
> +                               char *munged = NOFAIL(strdup(symname));
>                                 munged[0] = '_';
>                                 munged[1] = toupper(munged[1]);
>                                 symname = munged;
>
>


While you are here,
will you fix a little more?


line 1321:
            char *p = malloc(20);

line 1341:
            return strdup("");

line 2039:
            buf->p = realloc(buf->p, buf->size);



-- 
Best Regards
Masahiro Yamada

^ permalink raw reply	[flat|nested] 2+ messages in thread

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2018-08-14 20:50 [PATCH] modpost: check strdup() return value Randy Dunlap
2018-08-15  3:40 ` Masahiro Yamada

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