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* elf2dmp: Fix memory leak on main() error paths
@ 2020-08-26 10:15 AlexChen
  2020-09-04  1:04 ` AlexChen
                   ` (3 more replies)
  0 siblings, 4 replies; 6+ messages in thread
From: AlexChen @ 2020-08-26 10:15 UTC (permalink / raw)
  To: Viktor Prutyanov; +Cc: zhengchuan, qemu-devel, zhang.zhanghailiang

From: AlexChen <alex.chen@huawei.com>

The 'kdgb' is allocating memory in get_kdbg(), but it is not freed
in both fill_header() and fill_context() failed branches, fix it.

Signed-off-by: AlexChen <alex.chen@huawei.com>
---
 contrib/elf2dmp/main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/contrib/elf2dmp/main.c b/contrib/elf2dmp/main.c
index 9a2dbc2902..ac746e49e0 100644
--- a/contrib/elf2dmp/main.c
+++ b/contrib/elf2dmp/main.c
@@ -568,12 +568,12 @@ int main(int argc, char *argv[])
     if (fill_header(&header, &ps, &vs, KdDebuggerDataBlock, kdbg,
             KdVersionBlock, qemu_elf.state_nr)) {
         err = 1;
-        goto out_pdb;
+        goto out_kdbg;
     }

     if (fill_context(kdbg, &vs, &qemu_elf)) {
         err = 1;
-        goto out_pdb;
+        goto out_kdbg;
     }

     if (write_dump(&ps, &header, argv[2])) {
-- 
2.19.1



^ permalink raw reply related	[flat|nested] 6+ messages in thread
* Re: elf2dmp: Fix memory leak on main() error paths
  2020-08-26 10:15 elf2dmp: Fix memory leak on main() error paths AlexChen
@ 2020-09-04  1:04 ` AlexChen
  2020-09-07  1:24 ` Li Qiang
                   ` (2 subsequent siblings)
  3 siblings, 0 replies; 6+ messages in thread
From: AlexChen @ 2020-09-04  1:04 UTC (permalink / raw)
  To: Viktor Prutyanov; +Cc: zhengchuan, qemu-devel, zhang.zhanghailiang

Kindly ping.

On 2020/8/26 18:15, AlexChen wrote:
> From: AlexChen <alex.chen@huawei.com>
> 
> The 'kdgb' is allocating memory in get_kdbg(), but it is not freed
> in both fill_header() and fill_context() failed branches, fix it.
> 
> Signed-off-by: AlexChen <alex.chen@huawei.com>
> ---
>  contrib/elf2dmp/main.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/contrib/elf2dmp/main.c b/contrib/elf2dmp/main.c
> index 9a2dbc2902..ac746e49e0 100644
> --- a/contrib/elf2dmp/main.c
> +++ b/contrib/elf2dmp/main.c
> @@ -568,12 +568,12 @@ int main(int argc, char *argv[])
>      if (fill_header(&header, &ps, &vs, KdDebuggerDataBlock, kdbg,
>              KdVersionBlock, qemu_elf.state_nr)) {
>          err = 1;
> -        goto out_pdb;
> +        goto out_kdbg;
>      }
> 
>      if (fill_context(kdbg, &vs, &qemu_elf)) {
>          err = 1;
> -        goto out_pdb;
> +        goto out_kdbg;
>      }
> 
>      if (write_dump(&ps, &header, argv[2])) {
> 




^ permalink raw reply	[flat|nested] 6+ messages in thread
* Re: elf2dmp: Fix memory leak on main() error paths
  2020-08-26 10:15 elf2dmp: Fix memory leak on main() error paths AlexChen
  2020-09-04  1:04 ` AlexChen
@ 2020-09-07  1:24 ` Li Qiang
  2020-09-10 20:33 ` Viktor Prutyanov
  2020-09-11  4:18 ` Thomas Huth
  3 siblings, 0 replies; 6+ messages in thread
From: Li Qiang @ 2020-09-07  1:24 UTC (permalink / raw)
  To: AlexChen; +Cc: zhengchuan, Qemu Developers, Viktor Prutyanov, zhanghailiang

AlexChen <alex.chen@huawei.com> 于2020年8月26日周三 下午6:16写道：
>
> From: AlexChen <alex.chen@huawei.com>

Reviewed-by: Li Qiang <liq3ea@gmail.com>

>
> The 'kdgb' is allocating memory in get_kdbg(), but it is not freed
> in both fill_header() and fill_context() failed branches, fix it.
>
> Signed-off-by: AlexChen <alex.chen@huawei.com>
> ---
>  contrib/elf2dmp/main.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/contrib/elf2dmp/main.c b/contrib/elf2dmp/main.c
> index 9a2dbc2902..ac746e49e0 100644
> --- a/contrib/elf2dmp/main.c
> +++ b/contrib/elf2dmp/main.c
> @@ -568,12 +568,12 @@ int main(int argc, char *argv[])
>      if (fill_header(&header, &ps, &vs, KdDebuggerDataBlock, kdbg,
>              KdVersionBlock, qemu_elf.state_nr)) {
>          err = 1;
> -        goto out_pdb;
> +        goto out_kdbg;
>      }
>
>      if (fill_context(kdbg, &vs, &qemu_elf)) {
>          err = 1;
> -        goto out_pdb;
> +        goto out_kdbg;
>      }
>
>      if (write_dump(&ps, &header, argv[2])) {
> --
> 2.19.1
>
>


^ permalink raw reply	[flat|nested] 6+ messages in thread
* Re: elf2dmp: Fix memory leak on main() error paths
  2020-08-26 10:15 elf2dmp: Fix memory leak on main() error paths AlexChen
  2020-09-04  1:04 ` AlexChen
  2020-09-07  1:24 ` Li Qiang
@ 2020-09-10 20:33 ` Viktor Prutyanov
  2020-09-11  4:18 ` Thomas Huth
  3 siblings, 0 replies; 6+ messages in thread
From: Viktor Prutyanov @ 2020-09-10 20:33 UTC (permalink / raw)
  To: AlexChen; +Cc: zhengchuan, Paolo Bonzini, qemu-devel, zhang.zhanghailiang

On Wed, 26 Aug 2020 18:15:53 +0800
AlexChen <alex.chen@huawei.com> wrote:

> From: AlexChen <alex.chen@huawei.com>
> 
> The 'kdgb' is allocating memory in get_kdbg(), but it is not freed
> in both fill_header() and fill_context() failed branches, fix it.
> 
> Signed-off-by: AlexChen <alex.chen@huawei.com>
> ---
>  contrib/elf2dmp/main.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/contrib/elf2dmp/main.c b/contrib/elf2dmp/main.c
> index 9a2dbc2902..ac746e49e0 100644
> --- a/contrib/elf2dmp/main.c
> +++ b/contrib/elf2dmp/main.c
> @@ -568,12 +568,12 @@ int main(int argc, char *argv[])
>      if (fill_header(&header, &ps, &vs, KdDebuggerDataBlock, kdbg,
>              KdVersionBlock, qemu_elf.state_nr)) {
>          err = 1;
> -        goto out_pdb;
> +        goto out_kdbg;
>      }
> 
>      if (fill_context(kdbg, &vs, &qemu_elf)) {
>          err = 1;
> -        goto out_pdb;
> +        goto out_kdbg;
>      }
> 
>      if (write_dump(&ps, &header, argv[2])) {

Reviewed-by: Viktor Prutyanov <viktor.prutyanov@phystech.edu>

-- 
Viktor Prutyanov


^ permalink raw reply	[flat|nested] 6+ messages in thread
* Re: elf2dmp: Fix memory leak on main() error paths
  2020-08-26 10:15 elf2dmp: Fix memory leak on main() error paths AlexChen
                   ` (2 preceding siblings ...)
  2020-09-10 20:33 ` Viktor Prutyanov
@ 2020-09-11  4:18 ` Thomas Huth
  2020-09-11  7:01   ` Laurent Vivier
  3 siblings, 1 reply; 6+ messages in thread
From: Thomas Huth @ 2020-09-11  4:18 UTC (permalink / raw)
  To: AlexChen, Viktor Prutyanov
  Cc: zhengchuan, QEMU Trivial, Paolo Bonzini, qemu-devel, zhang.zhanghailiang

On 26/08/2020 12.15, AlexChen wrote:
> From: AlexChen <alex.chen@huawei.com>
> 
> The 'kdgb' is allocating memory in get_kdbg(), but it is not freed
> in both fill_header() and fill_context() failed branches, fix it.
> 
> Signed-off-by: AlexChen <alex.chen@huawei.com>
> ---
>  contrib/elf2dmp/main.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/contrib/elf2dmp/main.c b/contrib/elf2dmp/main.c
> index 9a2dbc2902..ac746e49e0 100644
> --- a/contrib/elf2dmp/main.c
> +++ b/contrib/elf2dmp/main.c
> @@ -568,12 +568,12 @@ int main(int argc, char *argv[])
>      if (fill_header(&header, &ps, &vs, KdDebuggerDataBlock, kdbg,
>              KdVersionBlock, qemu_elf.state_nr)) {
>          err = 1;
> -        goto out_pdb;
> +        goto out_kdbg;
>      }
> 
>      if (fill_context(kdbg, &vs, &qemu_elf)) {
>          err = 1;
> -        goto out_pdb;
> +        goto out_kdbg;
>      }
> 
>      if (write_dump(&ps, &header, argv[2])) {
> 

I think this could go via qemu-trivial (now on CC:).

Reviewed-by: Thomas Huth <thuth@redhat.com>



^ permalink raw reply	[flat|nested] 6+ messages in thread
* Re: elf2dmp: Fix memory leak on main() error paths
  2020-09-11  4:18 ` Thomas Huth
@ 2020-09-11  7:01   ` Laurent Vivier
  0 siblings, 0 replies; 6+ messages in thread
From: Laurent Vivier @ 2020-09-11  7:01 UTC (permalink / raw)
  To: Thomas Huth, AlexChen, Viktor Prutyanov
  Cc: zhengchuan, QEMU Trivial, zhang.zhanghailiang, qemu-devel, Paolo Bonzini

Le 11/09/2020 à 06:18, Thomas Huth a écrit :
> On 26/08/2020 12.15, AlexChen wrote:
>> From: AlexChen <alex.chen@huawei.com>
>>
>> The 'kdgb' is allocating memory in get_kdbg(), but it is not freed
>> in both fill_header() and fill_context() failed branches, fix it.
>>
>> Signed-off-by: AlexChen <alex.chen@huawei.com>
>> ---
>>  contrib/elf2dmp/main.c | 4 ++--
>>  1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/contrib/elf2dmp/main.c b/contrib/elf2dmp/main.c
>> index 9a2dbc2902..ac746e49e0 100644
>> --- a/contrib/elf2dmp/main.c
>> +++ b/contrib/elf2dmp/main.c
>> @@ -568,12 +568,12 @@ int main(int argc, char *argv[])
>>      if (fill_header(&header, &ps, &vs, KdDebuggerDataBlock, kdbg,
>>              KdVersionBlock, qemu_elf.state_nr)) {
>>          err = 1;
>> -        goto out_pdb;
>> +        goto out_kdbg;
>>      }
>>
>>      if (fill_context(kdbg, &vs, &qemu_elf)) {
>>          err = 1;
>> -        goto out_pdb;
>> +        goto out_kdbg;
>>      }
>>
>>      if (write_dump(&ps, &header, argv[2])) {
>>
> 
> I think this could go via qemu-trivial (now on CC:).
> 
> Reviewed-by: Thomas Huth <thuth@redhat.com>
> 
> 

Applied to my trivial-patches branch.

Thanks,
Laurent


^ permalink raw reply	[flat|nested] 6+ messages in thread
end of thread, other threads:[~2020-09-11  7:02 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-08-26 10:15 elf2dmp: Fix memory leak on main() error paths AlexChen
2020-09-04  1:04 ` AlexChen
2020-09-07  1:24 ` Li Qiang
2020-09-10 20:33 ` Viktor Prutyanov
2020-09-11  4:18 ` Thomas Huth
2020-09-11  7:01   ` Laurent Vivier

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