linux-kernel - Re: [PATCH v2] Staging: exfat: Avoid use of strcpy

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Date:   Wed, 11 Sep 2019 13:48:35 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     Sandro Volery <sandro@...ery.com>
Cc:     devel@...verdev.osuosl.org, gregkh@...uxfoundation.org,
        valdis.kletnieks@...edu, linux-kernel@...r.kernel.org,
        linux@...musvillemoes.dk
Subject: Re: [PATCH v2] Staging: exfat: Avoid use of strcpy

On Wed, Sep 11, 2019 at 12:24:23PM +0200, Sandro Volery wrote:
> 
> 
> > On 11 Sep 2019, at 12:06, Dan Carpenter <dan.carpenter@...cle.com> wrote:
> > 
> > On Wed, Sep 11, 2019 at 11:42:19AM +0200, Sandro Volery wrote:
> >> Use strscpy instead of strcpy in exfat_core.c, and add a check
> >> for length that will return already known FFS_INVALIDPATH.
> >> 
> >> Suggested-by: Rasmus Villemoes <linux@...musvillemoes.dk>
> >> Signed-off-by: Sandro Volery <sandro@...ery.com>
> >> ---
> >> v2: Implement length check and return in one
> >> v1: Original Patch
> >> drivers/staging/exfat/exfat_core.c | 3 ++-
> >> 1 file changed, 2 insertions(+), 1 deletion(-)
> >> 
> >> diff --git a/drivers/staging/exfat/exfat_core.c b/drivers/staging/exfat/exfat_core.c
> >> index da8c58149c35..4c40f1352848 100644
> >> --- a/drivers/staging/exfat/exfat_core.c
> >> +++ b/drivers/staging/exfat/exfat_core.c
> >> @@ -2964,7 +2964,8 @@ s32 resolve_path(struct inode *inode, char *path, struct chain_t *p_dir,
> >>    if (strlen(path) >= (MAX_NAME_LENGTH * MAX_CHARSET_SIZE))
> >        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> > Delete this as it is no longer required.
> > 
> 
> Yep, saw it from Rasmus response too just now.. Dumb mistake.
> Will fix this this afternoon.
> 

Or you could send it tomorrow.  There is no rush.

regards,
dan carpenter