On Thu, 2019-07-25 at 13:03 -0700, Kees Cook wrote:
> On Wed, Jul 24, 2019 at 10:08:57AM -0700, Linus Torvalds wrote:
> > On Wed, Jul 24, 2019 at 6:09 AM Rasmus Villemoes
> > wrote:
> > > The kernel's snprintf() does not behave in a non-standard way, at least
> > > not with respect to its return v
On Wed, Jul 24, 2019 at 10:08:57AM -0700, Linus Torvalds wrote:
> On Wed, Jul 24, 2019 at 6:09 AM Rasmus Villemoes
> wrote:
> >
> > The kernel's snprintf() does not behave in a non-standard way, at least
> > not with respect to its return value.
>
> Note that the kernels snprintf() *does* very mu
On Thu, 25 Jul 2019, Markus Elfring wrote:
> > New version. I check for non-use of the return value of strlcpy and
> > address some issues that affected the matching of the case where the first
> > argument involves a pointer dereference.
>
> I suggest to take another look at corresponding impl
> New version. I check for non-use of the return value of strlcpy and
> address some issues that affected the matching of the case where the first
> argument involves a pointer dereference.
I suggest to take another look at corresponding implementation details
of the shown SmPL script.
> \(strs
On Wed, Jul 24, 2019 at 6:09 AM Rasmus Villemoes
wrote:
>
> The kernel's snprintf() does not behave in a non-standard way, at least
> not with respect to its return value.
Note that the kernels snprintf() *does* very much protect against the
overflow case - not by changing the return value, but s
On 24/07/2019 14.05, Yann Droneaud wrote:
> Hi,
>
> Beware that snprintf(), per C standard, is supposed to return the
> length of the formatted string, regarless of the size of the
> destination buffer.
>
> So encouraging developper to write something like code below because
> snprintf() in kern
Hi,
Le mardi 23 juillet 2019 à 15:41 +, David Laight a écrit :
> From: Rasmus Villemoes
> > Sent: 23 July 2019 07:56
> ...
> > > +/**
> > > + * stracpy - Copy a C-string into an array of char
> > > + * @to: Where to copy the string, must be an array of char and
> > > not a pointer
> > > + * @f
On Tue, 2019-07-23 at 14:36 -0700, Kees Cook wrote:
> On Mon, Jul 22, 2019 at 05:38:15PM -0700, Joe Perches wrote:
> > Several uses of strlcpy and strscpy have had defects because the
> > last argument of each function is misused or typoed.
> >
> > Add macro mechanisms to avoid this defect.
> >
>
On Mon, Jul 22, 2019 at 05:38:15PM -0700, Joe Perches wrote:
> Several uses of strlcpy and strscpy have had defects because the
> last argument of each function is misused or typoed.
>
> Add macro mechanisms to avoid this defect.
>
> stracpy (copy a string to a string array) must have a string
>
On Tue, Jul 23, 2019 at 03:41:27PM +, David Laight wrote:
> From: Rasmus Villemoes
> > Sent: 23 July 2019 07:56
> ...
> > > +/**
> > > + * stracpy - Copy a C-string into an array of char
> > > + * @to: Where to copy the string, must be an array of char and not a
> > > pointer
> > > + * @from:
On Mon, Jul 22, 2019 at 09:42:51PM -0700, Joe Perches wrote:
> On Mon, 2019-07-22 at 21:35 -0700, Andrew Morton wrote:
> > On Mon, 22 Jul 2019 17:38:15 -0700 Joe Perches wrote:
> >
> > > Several uses of strlcpy and strscpy have had defects because the
> > > last argument of each function is misus
(adding Chris Metcalf)
On Tue, 2019-07-23 at 15:41 +, David Laight wrote:
> From: Rasmus Villemoes
> > Sent: 23 July 2019 07:56
> ...
> > > +/**
> > > + * stracpy - Copy a C-string into an array of char
> > > + * @to: Where to copy the string, must be an array of char and not a
> > > pointer
From: Rasmus Villemoes
> Sent: 23 July 2019 07:56
...
> > +/**
> > + * stracpy - Copy a C-string into an array of char
> > + * @to: Where to copy the string, must be an array of char and not a
> > pointer
> > + * @from: String to copy, may be a pointer or const char array
> > + *
> > + * Helper fo
On 23/07/2019 02.38, Joe Perches wrote:
> Several uses of strlcpy and strscpy have had defects because the
> last argument of each function is misused or typoed.
>
> Add macro mechanisms to avoid this defect.
>
> stracpy (copy a string to a string array) must have a string
> array as the first ar
On Mon, 2019-07-22 at 21:35 -0700, Andrew Morton wrote:
> On Mon, 22 Jul 2019 17:38:15 -0700 Joe Perches wrote:
>
> > Several uses of strlcpy and strscpy have had defects because the
> > last argument of each function is misused or typoed.
> >
> > Add macro mechanisms to avoid this defect.
> >
On Mon, 22 Jul 2019 17:38:15 -0700 Joe Perches wrote:
> Several uses of strlcpy and strscpy have had defects because the
> last argument of each function is misused or typoed.
>
> Add macro mechanisms to avoid this defect.
>
> stracpy (copy a string to a string array) must have a string
> array
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