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From: jwcart2 <jwcart2@tycho.nsa.gov>
To: Nicolas Iooss <nicolas.iooss@m4x.org>, selinux@vger.kernel.org
Subject: Re: [Non-DoD Source] [PATCH 0/9] Fix issues found by static analyzers
Date: Tue, 17 Sep 2019 11:01:16 -0400
Message-ID: <fd3da02e-1968-a18b-c25f-29573ec9220f@tycho.nsa.gov> (raw)
In-Reply-To: <393f7b30-35e5-5c43-7d26-070dd43adbb3@tycho.nsa.gov>

On 9/16/19 12:46 PM, jwcart2 wrote:
> On 9/1/19 2:06 PM, Nicolas Iooss wrote:
>> Hi,
>>
>> In August I ran several free static analyzers in order to find new
>> issues in the userspace code. I used:
>>
>> * clang's static analyzer (with scripts/run-scan-build)
>> * https://lgtm.com/ (I wrote a simple configuration file to analyze the
>>    C code, the results are available on
>>    https://lgtm.com/projects/g/fishilico/selinux-for-lgtm/ )
>> * Facebook's Infer (https://fbinfer.com/, I wrote a script to invoke it
>>    like clang's static analyzer)
>>
>> Each analyzer gave many results, with several true bugs in them. Here
>> are patches that fix some of them. I will post the configuration files
>> and scripts I used separately.
>>
>> Thanks,
>> Nicolas
>>
>> Nicolas Iooss (9):
>>    semodule-utils: fix comparison with argc
>>    libsepol/cil: help static analyzers by aborting when an allocation
>>      fails
>>    libsepol: do not dereference a failed allocated pointer
>>    libsepol: do not dereference scope if it can be NULL
>>    libsepol: reset *p to NULL if sepol_module_package_create fails
>>    libsepol/cil: do not dereference perm_value_to_cil when it has not
>>      been allocated
>>    python/chcat: remove unnecessary assignment
>>    python/sepolicy: remove unnecessary pass statement
>>    libsepol/tests: do not dereference a NULL pointer
>>
>>   libsepol/cil/src/cil_binary.c                        | 10 ++++++----
>>   libsepol/cil/src/cil_mem.c                           |  5 +++++
>>   libsepol/src/avrule_block.c                          |  3 ++-
>>   libsepol/src/kernel_to_cil.c                         |  8 +++++---
>>   libsepol/src/kernel_to_conf.c                        |  8 +++++---
>>   libsepol/src/module.c                                |  4 +++-
>>   libsepol/tests/test-common.c                         | 11 +++++++----
>>   python/chcat/chcat                                   |  1 -
>>   python/sepolicy/sepolicy/__init__.py                 |  1 -
>>   semodule-utils/semodule_package/semodule_unpackage.c |  2 +-
>>   10 files changed, 34 insertions(+), 19 deletions(-)
>>
> 
> I forgot to mention this when I commented on patches 2 and 3, but patches 1 and 
> 4-9 all look good to me.
> 
> I plan on merging these, my take on your patch 2, and your updated patch 3 
> tomorrow, unless there are any objections.
> 

I have indeed merged your patches 1 and 4-9 along with my take on your patch 2 
and your updated patch 3.

Thanks,
Jim

> Jim
> 
> 


-- 
James Carter <jwcart2@tycho.nsa.gov>
National Security Agency

      reply index

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-01 18:06 Nicolas Iooss
2019-09-01 18:06 ` [PATCH 1/9] semodule-utils: fix comparison with argc Nicolas Iooss
2019-09-01 18:06 ` [PATCH 2/9] libsepol/cil: help static analyzers by aborting when an allocation fails Nicolas Iooss
2019-09-10 18:48   ` [Non-DoD Source] " jwcart2
2019-09-01 18:06 ` [PATCH 3/9] libsepol: do not dereference a failed allocated pointer Nicolas Iooss
2019-09-10 18:52   ` [Non-DoD Source] " jwcart2
2019-09-10 20:11     ` jwcart2
2019-09-01 18:06 ` [PATCH 4/9] libsepol: do not dereference scope if it can be NULL Nicolas Iooss
2019-09-01 18:06 ` [PATCH 5/9] libsepol: reset *p to NULL if sepol_module_package_create fails Nicolas Iooss
2019-09-01 18:06 ` [PATCH 6/9] libsepol/cil: do not dereference perm_value_to_cil when it has not been allocated Nicolas Iooss
2019-09-01 18:06 ` [PATCH 7/9] python/chcat: remove unnecessary assignment Nicolas Iooss
2019-09-01 18:06 ` [PATCH 8/9] python/sepolicy: remove unnecessary pass statement Nicolas Iooss
2019-09-01 18:06 ` [PATCH 9/9] libsepol/tests: do not dereference a NULL pointer Nicolas Iooss
2019-09-16 16:46 ` [Non-DoD Source] [PATCH 0/9] Fix issues found by static analyzers jwcart2
2019-09-17 15:01   ` jwcart2 [this message]

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