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* Re: NetworkPkg: Fix invalid pointer for DNS response token on error
       [not found] <TU4PR8401MB065415F7B9E638BEF95BA635BA629@TU4PR8401MB0654.NAMPRD84.PROD.OUTLOOK.COM>
@ 2021-11-25  1:28 ` Anbazhagan, Baraneedharan
  2021-11-25  1:36   ` Wu, Jiaxin
  0 siblings, 1 reply; 2+ messages in thread
From: Anbazhagan, Baraneedharan @ 2021-11-25  1:28 UTC (permalink / raw)
  To: devel@edk2.groups.io
  Cc: maciej.rabeda@linux.intel.com, jiaxin.wu@intel.com,
	siyuan.fu@intel.com

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Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=3719

Token->RspData.H2AData is de-allocated on error but it is not
set to NULL. HTTP module attempts to free again and cause assert.

Signed-off-by: Baraneedharan Anbazhagan anbazhagan@hp.com<mailto:anbazhagan@hp.com>
---
NetworkPkg/DnsDxe/DnsImpl.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/NetworkPkg/DnsDxe/DnsImpl.c b/NetworkPkg/DnsDxe/DnsImpl.c
index 2edcb280ac..78a56f2b56 100644
--- a/NetworkPkg/DnsDxe/DnsImpl.c
+++ b/NetworkPkg/DnsDxe/DnsImpl.c
@@ -1700,6 +1700,7 @@ ON_EXIT:
           }

           FreePool (Dns4TokenEntry->Token->RspData.H2AData);
+          Dns4TokenEntry->Token->RspData.H2AData = NULL;
         }
       }
     }
@@ -1731,6 +1732,7 @@ ON_EXIT:
           }

           FreePool (Dns6TokenEntry->Token->RspData.H2AData);
+          Dns6TokenEntry->Token->RspData.H2AData = NULL;
         }
       }
     }
--
2.33.0.windows.2


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^ permalink raw reply related	[flat|nested] 2+ messages in thread

* Re: NetworkPkg: Fix invalid pointer for DNS response token on error
  2021-11-25  1:28 ` NetworkPkg: Fix invalid pointer for DNS response token on error Anbazhagan, Baraneedharan
@ 2021-11-25  1:36   ` Wu, Jiaxin
  0 siblings, 0 replies; 2+ messages in thread
From: Wu, Jiaxin @ 2021-11-25  1:36 UTC (permalink / raw)
  To: Anbazhagan, Baraneedharan, devel@edk2.groups.io
  Cc: maciej.rabeda@linux.intel.com, Fu, Siyuan

[-- Attachment #1: Type: text/plain, Size: 1313 bytes --]

Reviewed-by: Wu Jiaxin <jiaxin.wu@intel.com>



From: Anbazhagan, Baraneedharan <anbazhagan@hp.com>
Sent: Thursday, November 25, 2021 9:28 AM
To: devel@edk2.groups.io
Cc: maciej.rabeda@linux.intel.com; Wu, Jiaxin <jiaxin.wu@intel.com>; Fu, Siyuan <siyuan.fu@intel.com>
Subject: RE: NetworkPkg: Fix invalid pointer for DNS response token on error

Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=3719

Token->RspData.H2AData is de-allocated on error but it is not
set to NULL. HTTP module attempts to free again and cause assert.

Signed-off-by: Baraneedharan Anbazhagan anbazhagan@hp.com<mailto:anbazhagan@hp.com>
---
NetworkPkg/DnsDxe/DnsImpl.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/NetworkPkg/DnsDxe/DnsImpl.c b/NetworkPkg/DnsDxe/DnsImpl.c
index 2edcb280ac..78a56f2b56 100644
--- a/NetworkPkg/DnsDxe/DnsImpl.c
+++ b/NetworkPkg/DnsDxe/DnsImpl.c
@@ -1700,6 +1700,7 @@ ON_EXIT:
           }

           FreePool (Dns4TokenEntry->Token->RspData.H2AData);
+          Dns4TokenEntry->Token->RspData.H2AData = NULL;
         }
       }
     }
@@ -1731,6 +1732,7 @@ ON_EXIT:
           }

           FreePool (Dns6TokenEntry->Token->RspData.H2AData);
+          Dns6TokenEntry->Token->RspData.H2AData = NULL;
         }
       }
     }
--
2.33.0.windows.2


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^ permalink raw reply related	[flat|nested] 2+ messages in thread

end of thread, other threads:[~2021-11-25  1:36 UTC | newest]

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2021-11-25  1:28 ` NetworkPkg: Fix invalid pointer for DNS response token on error Anbazhagan, Baraneedharan
2021-11-25  1:36   ` Wu, Jiaxin

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