On Mon, Apr 13, 2020 at 05:15:49PM -0400, Waiman Long wrote:
> diff --git a/mm/slab_common.c b/mm/slab_common.c
> index 23c7500eea7d..c08bc7eb20bd 100644
> --- a/mm/slab_common.c
> +++ b/mm/slab_common.c
> @@ -1707,17 +1707,17 @@ void *krealloc(const void *p, size_t new_size, gfp_t
> flags)
>
On 6/15/20 2:07 PM, Dan Carpenter wrote:
On Mon, Apr 13, 2020 at 05:15:49PM -0400, Waiman Long wrote:
diff --git a/mm/slab_common.c b/mm/slab_common.c
index 23c7500eea7d..c08bc7eb20bd 100644
--- a/mm/slab_common.c
+++ b/mm/slab_common.c
@@ -1707,17 +1707,17 @@ void *krealloc(const void *p,
On 6/15/20 13:35, Denis Efremov wrote:
>
>
> On 6/15/20 9:23 PM, Kees Cook wrote:
>> On Mon, Jun 15, 2020 at 01:20:45PM +0300, Denis Efremov wrote:
>>> Detect an opencoded expression that is used before or after
>>> array_size()/array3_size()/struct_size() to compute the same size.
>>>
>>>
On 6/15/20 9:23 PM, Kees Cook wrote:
> On Mon, Jun 15, 2020 at 01:20:45PM +0300, Denis Efremov wrote:
>> Detect an opencoded expression that is used before or after
>> array_size()/array3_size()/struct_size() to compute the same size.
>>
>> Cc: Kees Cook
>> Signed-off-by: Denis Efremov
>
>
On Mon, Jun 15, 2020 at 01:20:45PM +0300, Denis Efremov wrote:
> Detect an opencoded expression that is used before or after
> array_size()/array3_size()/struct_size() to compute the same size.
>
> Cc: Kees Cook
> Signed-off-by: Denis Efremov
Oh, very cool! How much does this find currently?
>> +virtual report, org, context, patch
>>
>> Is such a SmPL code variant more succinct?
>
> This doens't matter.
Can less duplicate code be a bit nicer?
>>> +ssize_t show(struct device *dev, struct device_attribute *attr, char *buf)
>>> +{
>>> + <...
>>> +* return snprintf@p(...);
>>> +
On Mon, 15 Jun 2020, Markus Elfring wrote:
> > +// Confidence: High
>
> Would you like to add any suggestion for a possible patch message?
>
>
> …
> > +virtual report
> > +virtual org
> > +virtual context
> > +virtual patch
>
> +virtual report, org, context, patch
>
> Is such a SmPL code
> +// Confidence: High
Would you like to add any suggestion for a possible patch message?
…
> +virtual report
> +virtual org
> +virtual context
> +virtual patch
+virtual report, org, context, patch
Is such a SmPL code variant more succinct?
…
> +ssize_t show(struct device *dev, struct
On 6/15/20 3:03 PM, Dan Carpenter wrote:
> On Sun, Jun 14, 2020 at 10:42:54PM +0300, Denis Efremov wrote:
>> On 6/4/20 7:27 PM, Joe Perches wrote:
>>> On Thu, 2020-06-04 at 17:08 +0300, Denis Efremov wrote:
Check for memset() with 0 followed by kfree().
>>>
>>> Perhaps those uses should be
…
> +virtual context
> +virtual patch
> +virtual org
> +virtual report
+virtual context, patch, org, report
Is such a SmPL code variant more succinct?
…
> +if (...)
> + \(memset@ok\|memzero_explicit@ok\)(...);
Would you like to tolerate any extra source code around such a function call
in an
According to the documentation[1] show() methods of device attributes
should return the number of bytes printed into the buffer. This is
the return value of scnprintf(). show() must not use snprintf()
when formatting the value to be returned to user space. snprintf()
returns the length the
I suggest to avoid a typo in the previous patch subject.
…
> +virtual context
> +virtual report
> +virtual org
+virtual context, report, org
Is such a SmPL code variant more succinct?
…
> +@as_next@
> +expression subE1 <= as.E1;
> +expression as.E1;
…
I propose to reduce the repetition of
On Sun, Jun 14, 2020 at 10:42:54PM +0300, Denis Efremov wrote:
> On 6/4/20 7:27 PM, Joe Perches wrote:
> > On Thu, 2020-06-04 at 17:08 +0300, Denis Efremov wrote:
> >> Check for memset() with 0 followed by kfree().
> >
> > Perhaps those uses should be memzero_explicit or kvfree_sensitive.
> >
>
Detect an opencoded expression that is used before or after
array_size()/array3_size()/struct_size() to compute the same size.
Cc: Kees Cook
Signed-off-by: Denis Efremov
---
scripts/coccinelle/misc/array_size_dup.cocci | 347 +++
1 file changed, 347 insertions(+)
create mode
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