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vbox6: add null pointer check for clipboard

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Check 'pv == nullptr' in 'ShClSvcImplWriteData' and return
VERR_INVALID_POINTER if invalid (as is done, for example, in the X11
implementation).

issue #4666
This commit is contained in:
Sebastian Sumpf 2022-11-17 11:30:50 +01:00 committed by Christian Helmuth
parent 41d0c89a52
commit 2c92fc4b6f
1 changed files with 3 additions and 0 deletions
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repos/ports/src/virtualbox6/services/sharedclipboard.cc
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@ -164,6 +164,9 @@ int ShClSvcImplWriteData(PSHCLCLIENT, PSHCLCLIENTCMDCTX, SHCLFORMAT fFormat, voi
if (!(fFormat & VBOX_SHCL_FMT_UNICODETEXT))
return VERR_NOT_IMPLEMENTED;
if (pv == nullptr)
return VERR_INVALID_POINTER;
Clipboard::Guard guard;
PCRTUTF16 const utf16_string = (PCRTUTF16)pv;