On Mon, 8 Oct 2007 15:17:30 +0800 Dave Young wrote:
> Hi,
> Thanks for comment.
> fixed.
>
> Regards
> dave
> -----
>
> If memchr argument is longer than strlen(kp->name), there will be some
> weird result.
Just to clarify: this was causing duplicate filenames in sysfs ?
> Signed-off-by: Dave Young <[email protected]>
>
> ---
> kernel/params.c | 8 +++++++-
> 1 file changed, 7 insertions(+), 1 deletion(-)
>
> diff -upr linux/kernel/params.c linux.new/kernel/params.c
> --- linux/kernel/params.c 2007-10-08 14:30:06.000000000 +0800
> +++ linux.new/kernel/params.c 2007-10-08 15:13:04.000000000 +0800
> @@ -592,11 +592,17 @@ static void __init param_sysfs_builtin(v
>
> for (i=0; i < __stop___param - __start___param; i++) {
> char *dot;
> + size_t kplen;
>
> kp = &__start___param[i];
> + kplen = strlen(kp->name);
>
> /* We do not handle args without periods. */
> - dot = memchr(kp->name, '.', MAX_KBUILD_MODNAME);
> + if (kplen > MAX_KBUILD_MODNAME) {
> + DEBUGP("kernel parameter %s is too long\n", kp->name);
how about
kernel parameter name %s is too long
or
kernel parameter name is too long: %s
(primary is addition of "name")
> + continue;
> + }
> + dot = memchr(kp->name, '.', kplen);
> if (!dot) {
> DEBUGP("couldn't find period in %s\n", kp->name);
> continue;
> -
---
~Randy
-
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