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* [PATCH] fix array index out of bound exception
@ 2021-08-11 13:11 F.A. SULAIMAN
  2021-08-11 14:59 ` Jan Kara
                   ` (3 more replies)
  0 siblings, 4 replies; 5+ messages in thread
From: F.A. SULAIMAN @ 2021-08-11 13:11 UTC (permalink / raw)
  To: jack; +Cc: F.A.Sulaiman, linux-kernel

From: "F.A.Sulaiman" <asha.16@itfac.mrt.ac.lk>

Array index out of bound exception occurs when the 'part' variable is passed into the freeSpactTable array, 
this can be avoided using pointer arithmetic. 

Signed-off-by: F.A. SULAIMAN <asha.16@itfac.mrt.ac.lk>
---
 fs/udf/super.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/udf/super.c b/fs/udf/super.c
index 2f83c1204e20..d330c7162c3a 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -2522,7 +2522,7 @@ static unsigned int udf_count_free(struct super_block *sb)
 			sbi->s_lvid_bh->b_data;
 		if (le32_to_cpu(lvid->numOfPartitions) > part) {
 			accum = le32_to_cpu(
-					lvid->freeSpaceTable[part]);
+					(lvid->freeSpaceTable + part));
 			if (accum == 0xFFFFFFFF)
 				accum = 0;
 		}
-- 
2.17.1


^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: [PATCH] fix array index out of bound exception
  2021-08-11 13:11 [PATCH] fix array index out of bound exception F.A. SULAIMAN
@ 2021-08-11 14:59 ` Jan Kara
  2021-08-11 16:31 ` kernel test robot
                   ` (2 subsequent siblings)
  3 siblings, 0 replies; 5+ messages in thread
From: Jan Kara @ 2021-08-11 14:59 UTC (permalink / raw)
  To: F.A. SULAIMAN; +Cc: jack, linux-kernel

On Wed 11-08-21 18:41:50, F.A. SULAIMAN wrote:
> From: "F.A.Sulaiman" <asha.16@itfac.mrt.ac.lk>
> 
> Array index out of bound exception occurs when the 'part' variable is
> passed into the freeSpactTable array, this can be avoided using pointer
> arithmetic. 
> 
> Signed-off-by: F.A. SULAIMAN <asha.16@itfac.mrt.ac.lk>

I'm sorry but this doesn't even compile and the change is obviously
bogus...

								Honza

> ---
>  fs/udf/super.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/fs/udf/super.c b/fs/udf/super.c
> index 2f83c1204e20..d330c7162c3a 100644
> --- a/fs/udf/super.c
> +++ b/fs/udf/super.c
> @@ -2522,7 +2522,7 @@ static unsigned int udf_count_free(struct super_block *sb)
>  			sbi->s_lvid_bh->b_data;
>  		if (le32_to_cpu(lvid->numOfPartitions) > part) {
>  			accum = le32_to_cpu(
> -					lvid->freeSpaceTable[part]);
> +					(lvid->freeSpaceTable + part));
>  			if (accum == 0xFFFFFFFF)
>  				accum = 0;
>  		}
> -- 
> 2.17.1
> 
-- 
Jan Kara <jack@suse.com>
SUSE Labs, CR

^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: [PATCH] fix array index out of bound exception
  2021-08-11 13:11 [PATCH] fix array index out of bound exception F.A. SULAIMAN
  2021-08-11 14:59 ` Jan Kara
@ 2021-08-11 16:31 ` kernel test robot
  2021-08-11 17:23 ` kernel test robot
  2021-08-11 17:24 ` kernel test robot
  3 siblings, 0 replies; 5+ messages in thread
From: kernel test robot @ 2021-08-11 16:31 UTC (permalink / raw)
  To: F.A. SULAIMAN, jack
  Cc: clang-built-linux, kbuild-all, F.A.Sulaiman, linux-kernel

[-- Attachment #1: Type: text/plain, Size: 6072 bytes --]

Hi SULAIMAN",

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on v5.14-rc5 next-20210811]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/F-A-SULAIMAN/fix-array-index-out-of-bound-exception/20210811-211453
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 761c6d7ec820f123b931e7b8ef7ec7c8564e450f
config: x86_64-randconfig-c001-20210810 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project d39ebdae674c8efc84ebe8dc32716ec353220530)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/0day-ci/linux/commit/3c70bc4978e0cb74c7ba5189c093ecccf4564925
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review F-A-SULAIMAN/fix-array-index-out-of-bound-exception/20210811-211453
        git checkout 3c70bc4978e0cb74c7ba5189c093ecccf4564925
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

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

All warnings (new ones prefixed by >>):

>> fs/udf/super.c:2524:12: warning: cast to smaller integer type '__le32' (aka 'unsigned int') from '__le32 *' (aka 'unsigned int *') [-Wpointer-to-int-cast]
                           accum = le32_to_cpu(
                                   ^~~~~~~~~~~~
   include/linux/byteorder/generic.h:89:21: note: expanded from macro 'le32_to_cpu'
   #define le32_to_cpu __le32_to_cpu
                       ^
   include/uapi/linux/byteorder/little_endian.h:34:42: note: expanded from macro '__le32_to_cpu'
   #define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
                                            ^~~~~~~~~~~
   1 warning generated.


vim +2524 fs/udf/super.c

^1da177e4c3f41 Linus Torvalds   2005-04-16  2499  
cb00ea3528eb3c Cyrill Gorcunov  2007-07-19  2500  static unsigned int udf_count_free(struct super_block *sb)
^1da177e4c3f41 Linus Torvalds   2005-04-16  2501  {
^1da177e4c3f41 Linus Torvalds   2005-04-16  2502  	unsigned int accum = 0;
a4a8b99ec819ca Jan Kara         2020-01-07  2503  	struct udf_sb_info *sbi = UDF_SB(sb);
6c79e987d629cb Marcin Slusarz   2008-02-08  2504  	struct udf_part_map *map;
a4a8b99ec819ca Jan Kara         2020-01-07  2505  	unsigned int part = sbi->s_partition;
a4a8b99ec819ca Jan Kara         2020-01-07  2506  	int ptype = sbi->s_partmaps[part].s_partition_type;
a4a8b99ec819ca Jan Kara         2020-01-07  2507  
a4a8b99ec819ca Jan Kara         2020-01-07  2508  	if (ptype == UDF_METADATA_MAP25) {
a4a8b99ec819ca Jan Kara         2020-01-07  2509  		part = sbi->s_partmaps[part].s_type_specific.s_metadata.
a4a8b99ec819ca Jan Kara         2020-01-07  2510  							s_phys_partition_ref;
a4a8b99ec819ca Jan Kara         2020-01-07  2511  	} else if (ptype == UDF_VIRTUAL_MAP15 || ptype == UDF_VIRTUAL_MAP20) {
a4a8b99ec819ca Jan Kara         2020-01-07  2512  		/*
a4a8b99ec819ca Jan Kara         2020-01-07  2513  		 * Filesystems with VAT are append-only and we cannot write to
a4a8b99ec819ca Jan Kara         2020-01-07  2514   		 * them. Let's just report 0 here.
a4a8b99ec819ca Jan Kara         2020-01-07  2515  		 */
a4a8b99ec819ca Jan Kara         2020-01-07  2516  		return 0;
a4a8b99ec819ca Jan Kara         2020-01-07  2517  	}
^1da177e4c3f41 Linus Torvalds   2005-04-16  2518  
6c79e987d629cb Marcin Slusarz   2008-02-08  2519  	if (sbi->s_lvid_bh) {
4b11111aba6c80 Marcin Slusarz   2008-02-08  2520  		struct logicalVolIntegrityDesc *lvid =
4b11111aba6c80 Marcin Slusarz   2008-02-08  2521  			(struct logicalVolIntegrityDesc *)
4b11111aba6c80 Marcin Slusarz   2008-02-08  2522  			sbi->s_lvid_bh->b_data;
a4a8b99ec819ca Jan Kara         2020-01-07  2523  		if (le32_to_cpu(lvid->numOfPartitions) > part) {
4b11111aba6c80 Marcin Slusarz   2008-02-08 @2524  			accum = le32_to_cpu(
3c70bc4978e0cb F.A.Sulaiman     2021-08-11  2525  					(lvid->freeSpaceTable + part));
^1da177e4c3f41 Linus Torvalds   2005-04-16  2526  			if (accum == 0xFFFFFFFF)
^1da177e4c3f41 Linus Torvalds   2005-04-16  2527  				accum = 0;
^1da177e4c3f41 Linus Torvalds   2005-04-16  2528  		}
^1da177e4c3f41 Linus Torvalds   2005-04-16  2529  	}
^1da177e4c3f41 Linus Torvalds   2005-04-16  2530  
^1da177e4c3f41 Linus Torvalds   2005-04-16  2531  	if (accum)
^1da177e4c3f41 Linus Torvalds   2005-04-16  2532  		return accum;
^1da177e4c3f41 Linus Torvalds   2005-04-16  2533  
a4a8b99ec819ca Jan Kara         2020-01-07  2534  	map = &sbi->s_partmaps[part];
6c79e987d629cb Marcin Slusarz   2008-02-08  2535  	if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_BITMAP) {
28de7948a89676 Cyrill Gorcunov  2007-07-21  2536  		accum += udf_count_free_bitmap(sb,
6c79e987d629cb Marcin Slusarz   2008-02-08  2537  					       map->s_uspace.s_bitmap);
28de7948a89676 Cyrill Gorcunov  2007-07-21  2538  	}
^1da177e4c3f41 Linus Torvalds   2005-04-16  2539  	if (accum)
^1da177e4c3f41 Linus Torvalds   2005-04-16  2540  		return accum;
^1da177e4c3f41 Linus Torvalds   2005-04-16  2541  
6c79e987d629cb Marcin Slusarz   2008-02-08  2542  	if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_TABLE) {
28de7948a89676 Cyrill Gorcunov  2007-07-21  2543  		accum += udf_count_free_table(sb,
6c79e987d629cb Marcin Slusarz   2008-02-08  2544  					      map->s_uspace.s_table);
28de7948a89676 Cyrill Gorcunov  2007-07-21  2545  	}
^1da177e4c3f41 Linus Torvalds   2005-04-16  2546  	return accum;
^1da177e4c3f41 Linus Torvalds   2005-04-16  2547  }
54bb60d53114b8 Fabian Frederick 2017-01-06  2548  

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

[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 36357 bytes --]

^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: [PATCH] fix array index out of bound exception
  2021-08-11 13:11 [PATCH] fix array index out of bound exception F.A. SULAIMAN
  2021-08-11 14:59 ` Jan Kara
  2021-08-11 16:31 ` kernel test robot
@ 2021-08-11 17:23 ` kernel test robot
  2021-08-11 17:24 ` kernel test robot
  3 siblings, 0 replies; 5+ messages in thread
From: kernel test robot @ 2021-08-11 17:23 UTC (permalink / raw)
  To: F.A. SULAIMAN, jack; +Cc: kbuild-all, F.A.Sulaiman, linux-kernel

[-- Attachment #1: Type: text/plain, Size: 6789 bytes --]

Hi SULAIMAN",

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on v5.14-rc5 next-20210811]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/F-A-SULAIMAN/fix-array-index-out-of-bound-exception/20210811-211453
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 761c6d7ec820f123b931e7b8ef7ec7c8564e450f
config: x86_64-randconfig-s022-20210810 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.3-348-gf0e6938b-dirty
        # https://github.com/0day-ci/linux/commit/3c70bc4978e0cb74c7ba5189c093ecccf4564925
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review F-A-SULAIMAN/fix-array-index-out-of-bound-exception/20210811-211453
        git checkout 3c70bc4978e0cb74c7ba5189c093ecccf4564925
        # save the attached .config to linux build tree
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=x86_64 SHELL=/bin/bash fs/udf/

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

All warnings (new ones prefixed by >>):

   In file included from include/linux/byteorder/little_endian.h:5,
                    from arch/x86/include/uapi/asm/byteorder.h:5,
                    from include/asm-generic/bitops/le.h:7,
                    from arch/x86/include/asm/bitops.h:395,
                    from include/linux/bitops.h:32,
                    from include/linux/kernel.h:12,
                    from include/linux/list.h:9,
                    from include/linux/wait.h:7,
                    from include/linux/wait_bit.h:8,
                    from include/linux/fs.h:6,
                    from fs/udf/udfdecl.h:10,
                    from fs/udf/super.c:41:
   fs/udf/super.c: In function 'udf_count_free':
>> include/uapi/linux/byteorder/little_endian.h:34:42: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
      34 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
         |                                          ^
   include/linux/byteorder/generic.h:89:21: note: in expansion of macro '__le32_to_cpu'
      89 | #define le32_to_cpu __le32_to_cpu
         |                     ^~~~~~~~~~~~~
   fs/udf/super.c:2524:12: note: in expansion of macro 'le32_to_cpu'
    2524 |    accum = le32_to_cpu(
         |            ^~~~~~~~~~~


sparse warnings: (new ones prefixed by >>)
>> fs/udf/super.c:2524:33: sparse: sparse: cast to restricted __le32
>> fs/udf/super.c:2524:33: sparse: sparse: non size-preserving pointer to integer cast

vim +2524 fs/udf/super.c

^1da177e4c3f41 Linus Torvalds   2005-04-16  2499  
cb00ea3528eb3c Cyrill Gorcunov  2007-07-19  2500  static unsigned int udf_count_free(struct super_block *sb)
^1da177e4c3f41 Linus Torvalds   2005-04-16  2501  {
^1da177e4c3f41 Linus Torvalds   2005-04-16  2502  	unsigned int accum = 0;
a4a8b99ec819ca Jan Kara         2020-01-07  2503  	struct udf_sb_info *sbi = UDF_SB(sb);
6c79e987d629cb Marcin Slusarz   2008-02-08  2504  	struct udf_part_map *map;
a4a8b99ec819ca Jan Kara         2020-01-07  2505  	unsigned int part = sbi->s_partition;
a4a8b99ec819ca Jan Kara         2020-01-07  2506  	int ptype = sbi->s_partmaps[part].s_partition_type;
a4a8b99ec819ca Jan Kara         2020-01-07  2507  
a4a8b99ec819ca Jan Kara         2020-01-07  2508  	if (ptype == UDF_METADATA_MAP25) {
a4a8b99ec819ca Jan Kara         2020-01-07  2509  		part = sbi->s_partmaps[part].s_type_specific.s_metadata.
a4a8b99ec819ca Jan Kara         2020-01-07  2510  							s_phys_partition_ref;
a4a8b99ec819ca Jan Kara         2020-01-07  2511  	} else if (ptype == UDF_VIRTUAL_MAP15 || ptype == UDF_VIRTUAL_MAP20) {
a4a8b99ec819ca Jan Kara         2020-01-07  2512  		/*
a4a8b99ec819ca Jan Kara         2020-01-07  2513  		 * Filesystems with VAT are append-only and we cannot write to
a4a8b99ec819ca Jan Kara         2020-01-07  2514   		 * them. Let's just report 0 here.
a4a8b99ec819ca Jan Kara         2020-01-07  2515  		 */
a4a8b99ec819ca Jan Kara         2020-01-07  2516  		return 0;
a4a8b99ec819ca Jan Kara         2020-01-07  2517  	}
^1da177e4c3f41 Linus Torvalds   2005-04-16  2518  
6c79e987d629cb Marcin Slusarz   2008-02-08  2519  	if (sbi->s_lvid_bh) {
4b11111aba6c80 Marcin Slusarz   2008-02-08  2520  		struct logicalVolIntegrityDesc *lvid =
4b11111aba6c80 Marcin Slusarz   2008-02-08  2521  			(struct logicalVolIntegrityDesc *)
4b11111aba6c80 Marcin Slusarz   2008-02-08  2522  			sbi->s_lvid_bh->b_data;
a4a8b99ec819ca Jan Kara         2020-01-07  2523  		if (le32_to_cpu(lvid->numOfPartitions) > part) {
4b11111aba6c80 Marcin Slusarz   2008-02-08 @2524  			accum = le32_to_cpu(
3c70bc4978e0cb F.A.Sulaiman     2021-08-11  2525  					(lvid->freeSpaceTable + part));
^1da177e4c3f41 Linus Torvalds   2005-04-16  2526  			if (accum == 0xFFFFFFFF)
^1da177e4c3f41 Linus Torvalds   2005-04-16  2527  				accum = 0;
^1da177e4c3f41 Linus Torvalds   2005-04-16  2528  		}
^1da177e4c3f41 Linus Torvalds   2005-04-16  2529  	}
^1da177e4c3f41 Linus Torvalds   2005-04-16  2530  
^1da177e4c3f41 Linus Torvalds   2005-04-16  2531  	if (accum)
^1da177e4c3f41 Linus Torvalds   2005-04-16  2532  		return accum;
^1da177e4c3f41 Linus Torvalds   2005-04-16  2533  
a4a8b99ec819ca Jan Kara         2020-01-07  2534  	map = &sbi->s_partmaps[part];
6c79e987d629cb Marcin Slusarz   2008-02-08  2535  	if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_BITMAP) {
28de7948a89676 Cyrill Gorcunov  2007-07-21  2536  		accum += udf_count_free_bitmap(sb,
6c79e987d629cb Marcin Slusarz   2008-02-08  2537  					       map->s_uspace.s_bitmap);
28de7948a89676 Cyrill Gorcunov  2007-07-21  2538  	}
^1da177e4c3f41 Linus Torvalds   2005-04-16  2539  	if (accum)
^1da177e4c3f41 Linus Torvalds   2005-04-16  2540  		return accum;
^1da177e4c3f41 Linus Torvalds   2005-04-16  2541  
6c79e987d629cb Marcin Slusarz   2008-02-08  2542  	if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_TABLE) {
28de7948a89676 Cyrill Gorcunov  2007-07-21  2543  		accum += udf_count_free_table(sb,
6c79e987d629cb Marcin Slusarz   2008-02-08  2544  					      map->s_uspace.s_table);
28de7948a89676 Cyrill Gorcunov  2007-07-21  2545  	}
^1da177e4c3f41 Linus Torvalds   2005-04-16  2546  	return accum;
^1da177e4c3f41 Linus Torvalds   2005-04-16  2547  }
54bb60d53114b8 Fabian Frederick 2017-01-06  2548  

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

[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 34744 bytes --]

^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: [PATCH] fix array index out of bound exception
  2021-08-11 13:11 [PATCH] fix array index out of bound exception F.A. SULAIMAN
                   ` (2 preceding siblings ...)
  2021-08-11 17:23 ` kernel test robot
@ 2021-08-11 17:24 ` kernel test robot
  3 siblings, 0 replies; 5+ messages in thread
From: kernel test robot @ 2021-08-11 17:24 UTC (permalink / raw)
  To: F.A. SULAIMAN, jack; +Cc: kbuild-all, F.A.Sulaiman, linux-kernel

[-- Attachment #1: Type: text/plain, Size: 10892 bytes --]

Hi SULAIMAN",

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on v5.14-rc5 next-20210811]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/F-A-SULAIMAN/fix-array-index-out-of-bound-exception/20210811-211453
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 761c6d7ec820f123b931e7b8ef7ec7c8564e450f
config: sparc64-randconfig-r026-20210811 (attached as .config)
compiler: sparc64-linux-gcc (GCC) 10.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/0day-ci/linux/commit/3c70bc4978e0cb74c7ba5189c093ecccf4564925
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review F-A-SULAIMAN/fix-array-index-out-of-bound-exception/20210811-211453
        git checkout 3c70bc4978e0cb74c7ba5189c093ecccf4564925
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 make.cross ARCH=sparc64 

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

All warnings (new ones prefixed by >>):

   In file included from include/linux/swab.h:5,
                    from include/uapi/linux/byteorder/big_endian.h:13,
                    from include/linux/byteorder/big_endian.h:5,
                    from arch/sparc/include/uapi/asm/byteorder.h:5,
                    from arch/sparc/include/asm/bitops_64.h:16,
                    from arch/sparc/include/asm/bitops.h:5,
                    from include/linux/bitops.h:32,
                    from include/linux/kernel.h:12,
                    from include/linux/list.h:9,
                    from include/linux/wait.h:7,
                    from include/linux/wait_bit.h:8,
                    from include/linux/fs.h:6,
                    from fs/udf/udfdecl.h:10,
                    from fs/udf/super.c:41:
   fs/udf/super.c: In function 'udf_count_free':
>> include/uapi/linux/byteorder/big_endian.h:34:50: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
      34 | #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
         |                                                  ^
   include/uapi/linux/swab.h:118:32: note: in definition of macro '__swab32'
     118 |  (__builtin_constant_p((__u32)(x)) ? \
         |                                ^
   include/linux/byteorder/generic.h:89:21: note: in expansion of macro '__le32_to_cpu'
      89 | #define le32_to_cpu __le32_to_cpu
         |                     ^~~~~~~~~~~~~
   fs/udf/super.c:2524:12: note: in expansion of macro 'le32_to_cpu'
    2524 |    accum = le32_to_cpu(
         |            ^~~~~~~~~~~
>> include/uapi/linux/byteorder/big_endian.h:34:50: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
      34 | #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
         |                                                  ^
   include/uapi/linux/swab.h:19:12: note: in definition of macro '___constant_swab32'
      19 |  (((__u32)(x) & (__u32)0x000000ffUL) << 24) |  \
         |            ^
   include/uapi/linux/byteorder/big_endian.h:34:26: note: in expansion of macro '__swab32'
      34 | #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
         |                          ^~~~~~~~
   include/linux/byteorder/generic.h:89:21: note: in expansion of macro '__le32_to_cpu'
      89 | #define le32_to_cpu __le32_to_cpu
         |                     ^~~~~~~~~~~~~
   fs/udf/super.c:2524:12: note: in expansion of macro 'le32_to_cpu'
    2524 |    accum = le32_to_cpu(
         |            ^~~~~~~~~~~
>> include/uapi/linux/byteorder/big_endian.h:34:50: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
      34 | #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
         |                                                  ^
   include/uapi/linux/swab.h:20:12: note: in definition of macro '___constant_swab32'
      20 |  (((__u32)(x) & (__u32)0x0000ff00UL) <<  8) |  \
         |            ^
   include/uapi/linux/byteorder/big_endian.h:34:26: note: in expansion of macro '__swab32'
      34 | #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
         |                          ^~~~~~~~
   include/linux/byteorder/generic.h:89:21: note: in expansion of macro '__le32_to_cpu'
      89 | #define le32_to_cpu __le32_to_cpu
         |                     ^~~~~~~~~~~~~
   fs/udf/super.c:2524:12: note: in expansion of macro 'le32_to_cpu'
    2524 |    accum = le32_to_cpu(
         |            ^~~~~~~~~~~
>> include/uapi/linux/byteorder/big_endian.h:34:50: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
      34 | #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
         |                                                  ^
   include/uapi/linux/swab.h:21:12: note: in definition of macro '___constant_swab32'
      21 |  (((__u32)(x) & (__u32)0x00ff0000UL) >>  8) |  \
         |            ^
   include/uapi/linux/byteorder/big_endian.h:34:26: note: in expansion of macro '__swab32'
      34 | #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
         |                          ^~~~~~~~
   include/linux/byteorder/generic.h:89:21: note: in expansion of macro '__le32_to_cpu'
      89 | #define le32_to_cpu __le32_to_cpu
         |                     ^~~~~~~~~~~~~
   fs/udf/super.c:2524:12: note: in expansion of macro 'le32_to_cpu'
    2524 |    accum = le32_to_cpu(
         |            ^~~~~~~~~~~
>> include/uapi/linux/byteorder/big_endian.h:34:50: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
      34 | #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
         |                                                  ^
   include/uapi/linux/swab.h:22:12: note: in definition of macro '___constant_swab32'
      22 |  (((__u32)(x) & (__u32)0xff000000UL) >> 24)))
         |            ^
   include/uapi/linux/byteorder/big_endian.h:34:26: note: in expansion of macro '__swab32'
      34 | #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
         |                          ^~~~~~~~
   include/linux/byteorder/generic.h:89:21: note: in expansion of macro '__le32_to_cpu'
      89 | #define le32_to_cpu __le32_to_cpu
         |                     ^~~~~~~~~~~~~
   fs/udf/super.c:2524:12: note: in expansion of macro 'le32_to_cpu'
    2524 |    accum = le32_to_cpu(
         |            ^~~~~~~~~~~
>> include/uapi/linux/byteorder/big_endian.h:34:50: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
      34 | #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
         |                                                  ^
   include/uapi/linux/swab.h:120:12: note: in definition of macro '__swab32'
     120 |  __fswab32(x))
         |            ^
   include/linux/byteorder/generic.h:89:21: note: in expansion of macro '__le32_to_cpu'
      89 | #define le32_to_cpu __le32_to_cpu
         |                     ^~~~~~~~~~~~~
   fs/udf/super.c:2524:12: note: in expansion of macro 'le32_to_cpu'
    2524 |    accum = le32_to_cpu(
         |            ^~~~~~~~~~~


vim +34 include/uapi/linux/byteorder/big_endian.h

5921e6f8809b16 David Howells 2012-10-13  14  
5921e6f8809b16 David Howells 2012-10-13  15  #define __constant_htonl(x) ((__force __be32)(__u32)(x))
5921e6f8809b16 David Howells 2012-10-13  16  #define __constant_ntohl(x) ((__force __u32)(__be32)(x))
5921e6f8809b16 David Howells 2012-10-13  17  #define __constant_htons(x) ((__force __be16)(__u16)(x))
5921e6f8809b16 David Howells 2012-10-13  18  #define __constant_ntohs(x) ((__force __u16)(__be16)(x))
5921e6f8809b16 David Howells 2012-10-13  19  #define __constant_cpu_to_le64(x) ((__force __le64)___constant_swab64((x)))
5921e6f8809b16 David Howells 2012-10-13  20  #define __constant_le64_to_cpu(x) ___constant_swab64((__force __u64)(__le64)(x))
5921e6f8809b16 David Howells 2012-10-13  21  #define __constant_cpu_to_le32(x) ((__force __le32)___constant_swab32((x)))
5921e6f8809b16 David Howells 2012-10-13  22  #define __constant_le32_to_cpu(x) ___constant_swab32((__force __u32)(__le32)(x))
5921e6f8809b16 David Howells 2012-10-13  23  #define __constant_cpu_to_le16(x) ((__force __le16)___constant_swab16((x)))
5921e6f8809b16 David Howells 2012-10-13  24  #define __constant_le16_to_cpu(x) ___constant_swab16((__force __u16)(__le16)(x))
5921e6f8809b16 David Howells 2012-10-13  25  #define __constant_cpu_to_be64(x) ((__force __be64)(__u64)(x))
5921e6f8809b16 David Howells 2012-10-13  26  #define __constant_be64_to_cpu(x) ((__force __u64)(__be64)(x))
5921e6f8809b16 David Howells 2012-10-13  27  #define __constant_cpu_to_be32(x) ((__force __be32)(__u32)(x))
5921e6f8809b16 David Howells 2012-10-13  28  #define __constant_be32_to_cpu(x) ((__force __u32)(__be32)(x))
5921e6f8809b16 David Howells 2012-10-13  29  #define __constant_cpu_to_be16(x) ((__force __be16)(__u16)(x))
5921e6f8809b16 David Howells 2012-10-13  30  #define __constant_be16_to_cpu(x) ((__force __u16)(__be16)(x))
5921e6f8809b16 David Howells 2012-10-13  31  #define __cpu_to_le64(x) ((__force __le64)__swab64((x)))
5921e6f8809b16 David Howells 2012-10-13  32  #define __le64_to_cpu(x) __swab64((__force __u64)(__le64)(x))
5921e6f8809b16 David Howells 2012-10-13  33  #define __cpu_to_le32(x) ((__force __le32)__swab32((x)))
5921e6f8809b16 David Howells 2012-10-13 @34  #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
5921e6f8809b16 David Howells 2012-10-13  35  #define __cpu_to_le16(x) ((__force __le16)__swab16((x)))
5921e6f8809b16 David Howells 2012-10-13  36  #define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x))
5921e6f8809b16 David Howells 2012-10-13  37  #define __cpu_to_be64(x) ((__force __be64)(__u64)(x))
5921e6f8809b16 David Howells 2012-10-13  38  #define __be64_to_cpu(x) ((__force __u64)(__be64)(x))
5921e6f8809b16 David Howells 2012-10-13  39  #define __cpu_to_be32(x) ((__force __be32)(__u32)(x))
5921e6f8809b16 David Howells 2012-10-13  40  #define __be32_to_cpu(x) ((__force __u32)(__be32)(x))
5921e6f8809b16 David Howells 2012-10-13  41  #define __cpu_to_be16(x) ((__force __be16)(__u16)(x))
5921e6f8809b16 David Howells 2012-10-13  42  #define __be16_to_cpu(x) ((__force __u16)(__be16)(x))
5921e6f8809b16 David Howells 2012-10-13  43  

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2021-08-11 13:11 [PATCH] fix array index out of bound exception F.A. SULAIMAN
2021-08-11 14:59 ` Jan Kara
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