diff options
| author | Eike Rathke <erack@redhat.com> | 2023-02-17 12:03:54 +0100 |
|---|---|---|
| committer | Andras Timar <andras.timar@collabora.com> | 2023-03-26 19:23:15 +0200 |
| commit | 1e4701b1a95e6e46470c50da6f6c1be85849df03 (patch) | |
| tree | aed565f55133d72dd88a253602d2cc407eb209b5 | |
| parent | fb28f2204eb2693f4298615e84d17e428b184548 (diff) | |
Stack check safety belt before fishing in muddy waters
Have it hit hard in debug builds.
Change-Id: I9ea54844a0661fd7a75616a2876983a74b2d5bad
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/147205
Reviewed-by: Eike Rathke <erack@redhat.com>
Tested-by: Jenkins
(cherry picked from commit 9d91fbba6f374fa1c10b38eae003da89bd4e6d4b)
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/147902
Tested-by: Jenkins CollaboraOffice <jenkinscollaboraoffice@gmail.com>
Reviewed-by: Andras Timar <andras.timar@collabora.com>
| -rw-r--r-- | sc/source/core/inc/interpre.hxx | 12 | ||||
| -rw-r--r-- | sc/source/core/tool/interpr1.cxx | 4 |
2 files changed, 14 insertions, 2 deletions
diff --git a/sc/source/core/inc/interpre.hxx b/sc/source/core/inc/interpre.hxx index c7b93798bc58..c80ec572f1b5 100644 --- a/sc/source/core/inc/interpre.hxx +++ b/sc/source/core/inc/interpre.hxx @@ -231,6 +231,7 @@ private: inline bool MustHaveParamCount( short nAct, short nMust ); inline bool MustHaveParamCount( short nAct, short nMust, short nMax ); inline bool MustHaveParamCountMin( short nAct, short nMin ); + inline bool MustHaveParamCountMinWithStackCheck( short nAct, short nMin ); void PushParameterExpected(); void PushIllegalParameter(); void PushIllegalArgument(); @@ -1085,6 +1086,17 @@ inline bool ScInterpreter::MustHaveParamCountMin( short nAct, short nMin ) return false; } +inline bool ScInterpreter::MustHaveParamCountMinWithStackCheck( short nAct, short nMin ) +{ + assert(sp >= nAct); + if (sp < nAct) + { + PushParameterExpected(); + return false; + } + return MustHaveParamCountMin( nAct, nMin); +} + inline bool ScInterpreter::CheckStringPositionArgument( double & fVal ) { if (!std::isfinite( fVal)) diff --git a/sc/source/core/tool/interpr1.cxx b/sc/source/core/tool/interpr1.cxx index cc710efc353e..a957b916f64a 100644 --- a/sc/source/core/tool/interpr1.cxx +++ b/sc/source/core/tool/interpr1.cxx @@ -7515,7 +7515,7 @@ void ScInterpreter::ScVLookup() void ScInterpreter::ScSubTotal() { sal_uInt8 nParamCount = GetByte(); - if ( !MustHaveParamCountMin( nParamCount, 2 ) ) + if ( !MustHaveParamCountMinWithStackCheck( nParamCount, 2 ) ) return; // We must fish the 1st parameter deep from the stack! And push it on top. @@ -7562,7 +7562,7 @@ void ScInterpreter::ScSubTotal() void ScInterpreter::ScAggregate() { sal_uInt8 nParamCount = GetByte(); - if ( !MustHaveParamCountMin( nParamCount, 3 ) ) + if ( !MustHaveParamCountMinWithStackCheck( nParamCount, 3 ) ) return; const FormulaError nErr = nGlobalError; |