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From: Dan Carpenter <dan.carpenter@oracle.com>
To: kbuild@lists.01.org, Mathieu Poirier <mathieu.poirier@linaro.org>,
	ohad@wizery.com, bjorn.andersson@linaro.org,
	arnaud.pouliquen@st.com
Cc: lkp@intel.com, kbuild-all@lists.01.org, robh+dt@kernel.org,
	mcoquelin.stm32@gmail.com, alexandre.torgue@st.com,
	linux-remoteproc@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v5 13/19] remoteproc: Properly deal with the resource table
Date: Mon, 15 Feb 2021 15:06:03 +0300	[thread overview]
Message-ID: <20210215120603.GF2087@kadam> (raw)
In-Reply-To: <20210211234627.2669674-14-mathieu.poirier@linaro.org>

[-- Attachment #1: Type: text/plain, Size: 2395 bytes --]

Hi Mathieu,

url:    https://github.com/0day-ci/linux/commits/Mathieu-Poirier/remoteproc-Add-support-for-detaching-a-remote-processor/20210212-075607
base:   https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
config: ia64-randconfig-m031-20210209 (attached as .config)
compiler: ia64-linux-gcc (GCC) 9.3.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>

smatch warnings:
drivers/remoteproc/remoteproc_core.c:2080 rproc_detach() error: double free of 'rproc->cached_table'

vim +2080 drivers/remoteproc/remoteproc_core.c

eab58da78fe46f Mathieu Poirier 2021-02-11  2069  	/* clean up all acquired resources */
eab58da78fe46f Mathieu Poirier 2021-02-11  2070  	rproc_resource_cleanup(rproc);
eab58da78fe46f Mathieu Poirier 2021-02-11  2071  
eab58da78fe46f Mathieu Poirier 2021-02-11  2072  	/* release HW resources if needed */
eab58da78fe46f Mathieu Poirier 2021-02-11  2073  	rproc_unprepare_device(rproc);
eab58da78fe46f Mathieu Poirier 2021-02-11  2074  
eab58da78fe46f Mathieu Poirier 2021-02-11  2075  	rproc_disable_iommu(rproc);
eab58da78fe46f Mathieu Poirier 2021-02-11  2076  
66e2fed7a4bb20 Mathieu Poirier 2021-02-11  2077  	/* Free the copy of the resource table */
66e2fed7a4bb20 Mathieu Poirier 2021-02-11  2078  	kfree(rproc->cached_table);
                                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^
eab58da78fe46f Mathieu Poirier 2021-02-11  2079  	/* Follow the same sequence as in rproc_shutdown() */
eab58da78fe46f Mathieu Poirier 2021-02-11 @2080  	kfree(rproc->cached_table);
                                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^
Double free.

eab58da78fe46f Mathieu Poirier 2021-02-11  2081  	rproc->cached_table = NULL;
66e2fed7a4bb20 Mathieu Poirier 2021-02-11  2082  	rproc->clean_table = NULL;
eab58da78fe46f Mathieu Poirier 2021-02-11  2083  	rproc->table_ptr = NULL;
66e2fed7a4bb20 Mathieu Poirier 2021-02-11  2084  
eab58da78fe46f Mathieu Poirier 2021-02-11  2085  out:
eab58da78fe46f Mathieu Poirier 2021-02-11  2086  	mutex_unlock(&rproc->lock);
eab58da78fe46f Mathieu Poirier 2021-02-11  2087  	return ret;
eab58da78fe46f Mathieu Poirier 2021-02-11  2088  }

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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WARNING: multiple messages have this Message-ID (diff)
From: Dan Carpenter <dan.carpenter@oracle.com>
To: kbuild@lists.01.org, Mathieu Poirier <mathieu.poirier@linaro.org>,
	ohad@wizery.com, bjorn.andersson@linaro.org,
	arnaud.pouliquen@st.com
Cc: devicetree@vger.kernel.org, kbuild-all@lists.01.org,
	lkp@intel.com, linux-remoteproc@vger.kernel.org,
	linux-kernel@vger.kernel.org, robh+dt@kernel.org,
	mcoquelin.stm32@gmail.com, linux-arm-kernel@lists.infradead.org,
	alexandre.torgue@st.com
Subject: Re: [PATCH v5 13/19] remoteproc: Properly deal with the resource table
Date: Mon, 15 Feb 2021 15:06:03 +0300	[thread overview]
Message-ID: <20210215120603.GF2087@kadam> (raw)
In-Reply-To: <20210211234627.2669674-14-mathieu.poirier@linaro.org>

[-- Attachment #1: Type: text/plain, Size: 2395 bytes --]

Hi Mathieu,

url:    https://github.com/0day-ci/linux/commits/Mathieu-Poirier/remoteproc-Add-support-for-detaching-a-remote-processor/20210212-075607
base:   https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
config: ia64-randconfig-m031-20210209 (attached as .config)
compiler: ia64-linux-gcc (GCC) 9.3.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>

smatch warnings:
drivers/remoteproc/remoteproc_core.c:2080 rproc_detach() error: double free of 'rproc->cached_table'

vim +2080 drivers/remoteproc/remoteproc_core.c

eab58da78fe46f Mathieu Poirier 2021-02-11  2069  	/* clean up all acquired resources */
eab58da78fe46f Mathieu Poirier 2021-02-11  2070  	rproc_resource_cleanup(rproc);
eab58da78fe46f Mathieu Poirier 2021-02-11  2071  
eab58da78fe46f Mathieu Poirier 2021-02-11  2072  	/* release HW resources if needed */
eab58da78fe46f Mathieu Poirier 2021-02-11  2073  	rproc_unprepare_device(rproc);
eab58da78fe46f Mathieu Poirier 2021-02-11  2074  
eab58da78fe46f Mathieu Poirier 2021-02-11  2075  	rproc_disable_iommu(rproc);
eab58da78fe46f Mathieu Poirier 2021-02-11  2076  
66e2fed7a4bb20 Mathieu Poirier 2021-02-11  2077  	/* Free the copy of the resource table */
66e2fed7a4bb20 Mathieu Poirier 2021-02-11  2078  	kfree(rproc->cached_table);
                                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^
eab58da78fe46f Mathieu Poirier 2021-02-11  2079  	/* Follow the same sequence as in rproc_shutdown() */
eab58da78fe46f Mathieu Poirier 2021-02-11 @2080  	kfree(rproc->cached_table);
                                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^
Double free.

eab58da78fe46f Mathieu Poirier 2021-02-11  2081  	rproc->cached_table = NULL;
66e2fed7a4bb20 Mathieu Poirier 2021-02-11  2082  	rproc->clean_table = NULL;
eab58da78fe46f Mathieu Poirier 2021-02-11  2083  	rproc->table_ptr = NULL;
66e2fed7a4bb20 Mathieu Poirier 2021-02-11  2084  
eab58da78fe46f Mathieu Poirier 2021-02-11  2085  out:
eab58da78fe46f Mathieu Poirier 2021-02-11  2086  	mutex_unlock(&rproc->lock);
eab58da78fe46f Mathieu Poirier 2021-02-11  2087  	return ret;
eab58da78fe46f Mathieu Poirier 2021-02-11  2088  }

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

WARNING: multiple messages have this Message-ID (diff)
From: Dan Carpenter <dan.carpenter@oracle.com>
To: kbuild@lists.01.org
Subject: Re: [PATCH v5 13/19] remoteproc: Properly deal with the resource table
Date: Mon, 15 Feb 2021 15:06:03 +0300	[thread overview]
Message-ID: <20210215120603.GF2087@kadam> (raw)
In-Reply-To: <20210211234627.2669674-14-mathieu.poirier@linaro.org>

[-- Attachment #1: Type: text/plain, Size: 2441 bytes --]

Hi Mathieu,

url:    https://github.com/0day-ci/linux/commits/Mathieu-Poirier/remoteproc-Add-support-for-detaching-a-remote-processor/20210212-075607
base:   https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
config: ia64-randconfig-m031-20210209 (attached as .config)
compiler: ia64-linux-gcc (GCC) 9.3.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>

smatch warnings:
drivers/remoteproc/remoteproc_core.c:2080 rproc_detach() error: double free of 'rproc->cached_table'

vim +2080 drivers/remoteproc/remoteproc_core.c

eab58da78fe46f Mathieu Poirier 2021-02-11  2069  	/* clean up all acquired resources */
eab58da78fe46f Mathieu Poirier 2021-02-11  2070  	rproc_resource_cleanup(rproc);
eab58da78fe46f Mathieu Poirier 2021-02-11  2071  
eab58da78fe46f Mathieu Poirier 2021-02-11  2072  	/* release HW resources if needed */
eab58da78fe46f Mathieu Poirier 2021-02-11  2073  	rproc_unprepare_device(rproc);
eab58da78fe46f Mathieu Poirier 2021-02-11  2074  
eab58da78fe46f Mathieu Poirier 2021-02-11  2075  	rproc_disable_iommu(rproc);
eab58da78fe46f Mathieu Poirier 2021-02-11  2076  
66e2fed7a4bb20 Mathieu Poirier 2021-02-11  2077  	/* Free the copy of the resource table */
66e2fed7a4bb20 Mathieu Poirier 2021-02-11  2078  	kfree(rproc->cached_table);
                                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^
eab58da78fe46f Mathieu Poirier 2021-02-11  2079  	/* Follow the same sequence as in rproc_shutdown() */
eab58da78fe46f Mathieu Poirier 2021-02-11 @2080  	kfree(rproc->cached_table);
                                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^
Double free.

eab58da78fe46f Mathieu Poirier 2021-02-11  2081  	rproc->cached_table = NULL;
66e2fed7a4bb20 Mathieu Poirier 2021-02-11  2082  	rproc->clean_table = NULL;
eab58da78fe46f Mathieu Poirier 2021-02-11  2083  	rproc->table_ptr = NULL;
66e2fed7a4bb20 Mathieu Poirier 2021-02-11  2084  
eab58da78fe46f Mathieu Poirier 2021-02-11  2085  out:
eab58da78fe46f Mathieu Poirier 2021-02-11  2086  	mutex_unlock(&rproc->lock);
eab58da78fe46f Mathieu Poirier 2021-02-11  2087  	return ret;
eab58da78fe46f Mathieu Poirier 2021-02-11  2088  }

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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WARNING: multiple messages have this Message-ID (diff)
From: Dan Carpenter <dan.carpenter@oracle.com>
To: kbuild-all@lists.01.org
Subject: Re: [PATCH v5 13/19] remoteproc: Properly deal with the resource table
Date: Mon, 15 Feb 2021 15:06:03 +0300	[thread overview]
Message-ID: <20210215120603.GF2087@kadam> (raw)
In-Reply-To: <20210211234627.2669674-14-mathieu.poirier@linaro.org>

[-- Attachment #1: Type: text/plain, Size: 2441 bytes --]

Hi Mathieu,

url:    https://github.com/0day-ci/linux/commits/Mathieu-Poirier/remoteproc-Add-support-for-detaching-a-remote-processor/20210212-075607
base:   https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
config: ia64-randconfig-m031-20210209 (attached as .config)
compiler: ia64-linux-gcc (GCC) 9.3.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>

smatch warnings:
drivers/remoteproc/remoteproc_core.c:2080 rproc_detach() error: double free of 'rproc->cached_table'

vim +2080 drivers/remoteproc/remoteproc_core.c

eab58da78fe46f Mathieu Poirier 2021-02-11  2069  	/* clean up all acquired resources */
eab58da78fe46f Mathieu Poirier 2021-02-11  2070  	rproc_resource_cleanup(rproc);
eab58da78fe46f Mathieu Poirier 2021-02-11  2071  
eab58da78fe46f Mathieu Poirier 2021-02-11  2072  	/* release HW resources if needed */
eab58da78fe46f Mathieu Poirier 2021-02-11  2073  	rproc_unprepare_device(rproc);
eab58da78fe46f Mathieu Poirier 2021-02-11  2074  
eab58da78fe46f Mathieu Poirier 2021-02-11  2075  	rproc_disable_iommu(rproc);
eab58da78fe46f Mathieu Poirier 2021-02-11  2076  
66e2fed7a4bb20 Mathieu Poirier 2021-02-11  2077  	/* Free the copy of the resource table */
66e2fed7a4bb20 Mathieu Poirier 2021-02-11  2078  	kfree(rproc->cached_table);
                                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^
eab58da78fe46f Mathieu Poirier 2021-02-11  2079  	/* Follow the same sequence as in rproc_shutdown() */
eab58da78fe46f Mathieu Poirier 2021-02-11 @2080  	kfree(rproc->cached_table);
                                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^
Double free.

eab58da78fe46f Mathieu Poirier 2021-02-11  2081  	rproc->cached_table = NULL;
66e2fed7a4bb20 Mathieu Poirier 2021-02-11  2082  	rproc->clean_table = NULL;
eab58da78fe46f Mathieu Poirier 2021-02-11  2083  	rproc->table_ptr = NULL;
66e2fed7a4bb20 Mathieu Poirier 2021-02-11  2084  
eab58da78fe46f Mathieu Poirier 2021-02-11  2085  out:
eab58da78fe46f Mathieu Poirier 2021-02-11  2086  	mutex_unlock(&rproc->lock);
eab58da78fe46f Mathieu Poirier 2021-02-11  2087  	return ret;
eab58da78fe46f Mathieu Poirier 2021-02-11  2088  }

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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  reply	other threads:[~2021-02-15 12:07 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-11 23:46 [PATCH v5 00/19] remoteproc: Add support for detaching a remote processor Mathieu Poirier
2021-02-11 23:46 ` Mathieu Poirier
2021-02-11 23:46 ` [PATCH v5 01/19] dt-bindings: remoteproc: Add bindind to support autonomous processors Mathieu Poirier
2021-02-11 23:46   ` Mathieu Poirier
2021-02-11 23:46 ` [PATCH v5 02/19] remoteproc: Re-check state in rproc_shutdown() Mathieu Poirier
2021-02-11 23:46   ` Mathieu Poirier
2021-02-11 23:46 ` [PATCH v5 03/19] remoteproc: Remove useless check in rproc_del() Mathieu Poirier
2021-02-11 23:46   ` Mathieu Poirier
2021-02-11 23:46 ` [PATCH v5 04/19] remoteproc: Rename function rproc_actuate() Mathieu Poirier
2021-02-11 23:46   ` Mathieu Poirier
2021-02-11 23:46 ` [PATCH v5 05/19] remoteproc: Add new RPROC_ATTACHED state Mathieu Poirier
2021-02-11 23:46   ` Mathieu Poirier
2021-02-11 23:46 ` [PATCH v5 06/19] remoteproc: Properly represent the attached state Mathieu Poirier
2021-02-11 23:46   ` Mathieu Poirier
2021-02-11 23:46 ` [PATCH v5 07/19] remoteproc: Add new get_loaded_rsc_table() to rproc_ops Mathieu Poirier
2021-02-11 23:46   ` Mathieu Poirier
2021-02-15 13:10   ` Arnaud POULIQUEN
2021-02-15 13:10     ` Arnaud POULIQUEN
2021-02-17 21:22     ` Mathieu Poirier
2021-02-17 21:22       ` Mathieu Poirier
2021-02-11 23:46 ` [PATCH v5 08/19] remoteproc: stm32: Move resource table setup " Mathieu Poirier
2021-02-11 23:46   ` Mathieu Poirier
2021-02-11 23:46 ` [PATCH v5 09/19] remoteproc: stm32: Move memory parsing " Mathieu Poirier
2021-02-11 23:46   ` Mathieu Poirier
2021-02-11 23:46 ` [PATCH v5 10/19] remoteproc: Add new detach() remoteproc operation Mathieu Poirier
2021-02-11 23:46   ` Mathieu Poirier
2021-02-11 23:46 ` [PATCH v5 11/19] remoteproc: Introduce function __rproc_detach() Mathieu Poirier
2021-02-11 23:46   ` Mathieu Poirier
2021-02-11 23:46 ` [PATCH v5 12/19] remoteproc: Introduce function rproc_detach() Mathieu Poirier
2021-02-11 23:46   ` Mathieu Poirier
2021-02-11 23:46 ` [PATCH v5 13/19] remoteproc: Properly deal with the resource table Mathieu Poirier
2021-02-11 23:46   ` Mathieu Poirier
2021-02-15 12:06   ` Dan Carpenter [this message]
2021-02-15 12:06     ` Dan Carpenter
2021-02-15 12:06     ` Dan Carpenter
2021-02-15 12:06     ` Dan Carpenter
2021-02-15 13:19   ` Arnaud POULIQUEN
2021-02-15 13:19     ` Arnaud POULIQUEN
2021-02-11 23:46 ` [PATCH v5 14/19] remoteproc: Add return value to function rproc_shutdown() Mathieu Poirier
2021-02-11 23:46   ` Mathieu Poirier
2021-02-11 23:46 ` [PATCH v5 15/19] remoteproc: Properly deal with a kernel panic when attached Mathieu Poirier
2021-02-11 23:46   ` Mathieu Poirier
2021-02-11 23:46 ` [PATCH v5 16/19] remoteproc: Properly deal with a stop request " Mathieu Poirier
2021-02-11 23:46   ` Mathieu Poirier
2021-02-11 23:46 ` [PATCH v5 17/19] remoteproc: Properly deal with a start " Mathieu Poirier
2021-02-11 23:46   ` Mathieu Poirier
2021-02-11 23:46 ` [PATCH v5 18/19] remoteproc: Properly deal with detach request Mathieu Poirier
2021-02-11 23:46   ` Mathieu Poirier
2021-02-11 23:46 ` [PATCH v5 19/19] remoteproc: Refactor rproc delete and cdev release path Mathieu Poirier
2021-02-11 23:46   ` Mathieu Poirier
2021-02-12  2:45 [PATCH v5 13/19] remoteproc: Properly deal with the resource table kernel test robot
2021-02-12  6:07 kernel test robot

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