* [PATCH] ShellPkg/Shell: Avoid potential null pointer deference
@ 2017-03-28 2:27 Ruiyu Ni
2017-03-28 3:09 ` Wu, Hao A
0 siblings, 1 reply; 2+ messages in thread
From: Ruiyu Ni @ 2017-03-28 2:27 UTC (permalink / raw)
To: edk2-devel; +Cc: Hao A Wu
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
---
ShellPkg/Application/Shell/Shell.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/ShellPkg/Application/Shell/Shell.c b/ShellPkg/Application/Shell/Shell.c
index dfcbfb8..af8e523 100644
--- a/ShellPkg/Application/Shell/Shell.c
+++ b/ShellPkg/Application/Shell/Shell.c
@@ -1162,6 +1162,12 @@ LocateStartupScript (
MapName = ShellInfoObject.NewEfiShellProtocol->GetMapFromDevicePath (&ImageDevicePath);
if (MapName != NULL) {
StartupScriptPath = StrnCatGrow (&StartupScriptPath, &Size, MapName, 0);
+ if (StartupScriptPath == NULL) {
+ //
+ // Do not locate the startup script in sys path when out of resource.
+ //
+ return NULL;
+ }
TempSpot = StrStr (StartupScriptPath, L";");
if (TempSpot != NULL) {
*TempSpot = CHAR_NULL;
--
2.9.0.windows.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] ShellPkg/Shell: Avoid potential null pointer deference
2017-03-28 2:27 [PATCH] ShellPkg/Shell: Avoid potential null pointer deference Ruiyu Ni
@ 2017-03-28 3:09 ` Wu, Hao A
0 siblings, 0 replies; 2+ messages in thread
From: Wu, Hao A @ 2017-03-28 3:09 UTC (permalink / raw)
To: Ni, Ruiyu, edk2-devel@lists.01.org
Reviewed-by: Hao Wu <hao.a.wu@intel.com>
Best Regards,
Hao Wu
> -----Original Message-----
> From: Ni, Ruiyu
> Sent: Tuesday, March 28, 2017 10:27 AM
> To: edk2-devel@lists.01.org
> Cc: Wu, Hao A
> Subject: [PATCH] ShellPkg/Shell: Avoid potential null pointer deference
>
> Contributed-under: TianoCore Contribution Agreement 1.0
> Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
> Cc: Hao A Wu <hao.a.wu@intel.com>
> ---
> ShellPkg/Application/Shell/Shell.c | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/ShellPkg/Application/Shell/Shell.c
> b/ShellPkg/Application/Shell/Shell.c
> index dfcbfb8..af8e523 100644
> --- a/ShellPkg/Application/Shell/Shell.c
> +++ b/ShellPkg/Application/Shell/Shell.c
> @@ -1162,6 +1162,12 @@ LocateStartupScript (
> MapName = ShellInfoObject.NewEfiShellProtocol->GetMapFromDevicePath
> (&ImageDevicePath);
> if (MapName != NULL) {
> StartupScriptPath = StrnCatGrow (&StartupScriptPath, &Size, MapName, 0);
> + if (StartupScriptPath == NULL) {
> + //
> + // Do not locate the startup script in sys path when out of resource.
> + //
> + return NULL;
> + }
> TempSpot = StrStr (StartupScriptPath, L";");
> if (TempSpot != NULL) {
> *TempSpot = CHAR_NULL;
> --
> 2.9.0.windows.1
^ permalink raw reply [flat|nested] 2+ messages in thread
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2017-03-28 3:09 ` Wu, Hao A
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