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author | Andreas Kling <andreas.kling@nokia.com> | 2010-06-21 16:52:45 (GMT) |
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committer | Andreas Kling <andreas.kling@nokia.com> | 2010-06-21 16:52:45 (GMT) |
commit | 569860f721a30d5caad8ea1b55a3220f7e7f3d56 (patch) | |
tree | 989885c929eba454e908de268eeb4cecd1aa8d29 /src | |
parent | e18632ed9ef6eeda767cf405de491f6ee00b0692 (diff) | |
download | Qt-569860f721a30d5caad8ea1b55a3220f7e7f3d56.zip Qt-569860f721a30d5caad8ea1b55a3220f7e7f3d56.tar.gz Qt-569860f721a30d5caad8ea1b55a3220f7e7f3d56.tar.bz2 |
Fix null HB_Device** dereference on exit in Harfbuzz GPOS code
Fix incorrect usage of _HB_OPEN_Free_Device() in CaretValue cleanup
Diffstat (limited to 'src')
-rw-r--r-- | src/3rdparty/harfbuzz/src/harfbuzz-gdef.c | 2 | ||||
-rw-r--r-- | src/3rdparty/harfbuzz/src/harfbuzz-gpos.c | 26 | ||||
-rw-r--r-- | src/3rdparty/harfbuzz/src/harfbuzz-open-private.h | 2 | ||||
-rw-r--r-- | src/3rdparty/harfbuzz/src/harfbuzz-open.c | 8 |
4 files changed, 21 insertions, 17 deletions
diff --git a/src/3rdparty/harfbuzz/src/harfbuzz-gdef.c b/src/3rdparty/harfbuzz/src/harfbuzz-gdef.c index c0c6f2c..966b167 100644 --- a/src/3rdparty/harfbuzz/src/harfbuzz-gdef.c +++ b/src/3rdparty/harfbuzz/src/harfbuzz-gdef.c @@ -462,7 +462,7 @@ static HB_Error Load_CaretValue( HB_CaretValue* cv, static void Free_CaretValue( HB_CaretValue* cv) { if ( cv->CaretValueFormat == 3 ) - _HB_OPEN_Free_Device( &cv->cvf.cvf3.Device ); + _HB_OPEN_Free_Device( cv->cvf.cvf3.Device ); } diff --git a/src/3rdparty/harfbuzz/src/harfbuzz-gpos.c b/src/3rdparty/harfbuzz/src/harfbuzz-gpos.c index 31b9ae1..0236271 100644 --- a/src/3rdparty/harfbuzz/src/harfbuzz-gpos.c +++ b/src/3rdparty/harfbuzz/src/harfbuzz-gpos.c @@ -433,13 +433,16 @@ static HB_Error Load_ValueRecord( HB_ValueRecord* vr, return HB_Err_Ok; Fail1: - _HB_OPEN_Free_Device( &vr->DeviceTables[VR_Y_ADVANCE_DEVICE] ); + if ( vr->DeviceTables ) + _HB_OPEN_Free_Device( vr->DeviceTables[VR_Y_ADVANCE_DEVICE] ); Fail2: - _HB_OPEN_Free_Device( &vr->DeviceTables[VR_X_ADVANCE_DEVICE] ); + if ( vr->DeviceTables ) + _HB_OPEN_Free_Device( vr->DeviceTables[VR_X_ADVANCE_DEVICE] ); Fail3: - _HB_OPEN_Free_Device( &vr->DeviceTables[VR_Y_PLACEMENT_DEVICE] ); + if ( vr->DeviceTables ) + _HB_OPEN_Free_Device( vr->DeviceTables[VR_Y_PLACEMENT_DEVICE] ); FREE( vr->DeviceTables ); return error; @@ -450,13 +453,13 @@ static void Free_ValueRecord( HB_ValueRecord* vr, HB_UShort format ) { if ( format & HB_GPOS_FORMAT_HAVE_Y_ADVANCE_DEVICE ) - _HB_OPEN_Free_Device( &vr->DeviceTables[VR_Y_ADVANCE_DEVICE] ); + _HB_OPEN_Free_Device( vr->DeviceTables[VR_Y_ADVANCE_DEVICE] ); if ( format & HB_GPOS_FORMAT_HAVE_X_ADVANCE_DEVICE ) - _HB_OPEN_Free_Device( &vr->DeviceTables[VR_X_ADVANCE_DEVICE] ); + _HB_OPEN_Free_Device( vr->DeviceTables[VR_X_ADVANCE_DEVICE] ); if ( format & HB_GPOS_FORMAT_HAVE_Y_PLACEMENT_DEVICE ) - _HB_OPEN_Free_Device( &vr->DeviceTables[VR_Y_PLACEMENT_DEVICE] ); + _HB_OPEN_Free_Device( vr->DeviceTables[VR_Y_PLACEMENT_DEVICE] ); if ( format & HB_GPOS_FORMAT_HAVE_X_PLACEMENT_DEVICE ) - _HB_OPEN_Free_Device( &vr->DeviceTables[VR_X_PLACEMENT_DEVICE] ); + _HB_OPEN_Free_Device( vr->DeviceTables[VR_X_PLACEMENT_DEVICE] ); FREE( vr->DeviceTables ); } @@ -688,7 +691,8 @@ static HB_Error Load_Anchor( HB_Anchor* an, return HB_Err_Ok; Fail: - _HB_OPEN_Free_Device( &an->af.af3.DeviceTables[AF3_X_DEVICE_TABLE] ); + if ( an->af.af3.DeviceTables ) + _HB_OPEN_Free_Device( an->af.af3.DeviceTables[AF3_X_DEVICE_TABLE] ); FREE( an->af.af3.DeviceTables ); return error; @@ -697,10 +701,10 @@ Fail: static void Free_Anchor( HB_Anchor* an) { - if ( an->PosFormat == 3 ) + if ( an->PosFormat == 3 && an->af.af3.DeviceTables ) { - _HB_OPEN_Free_Device( &an->af.af3.DeviceTables[AF3_X_DEVICE_TABLE] ); - _HB_OPEN_Free_Device( &an->af.af3.DeviceTables[AF3_Y_DEVICE_TABLE] ); + _HB_OPEN_Free_Device( an->af.af3.DeviceTables[AF3_X_DEVICE_TABLE] ); + _HB_OPEN_Free_Device( an->af.af3.DeviceTables[AF3_Y_DEVICE_TABLE] ); FREE( an->af.af3.DeviceTables ); } } diff --git a/src/3rdparty/harfbuzz/src/harfbuzz-open-private.h b/src/3rdparty/harfbuzz/src/harfbuzz-open-private.h index 65ca453..f1ca278 100644 --- a/src/3rdparty/harfbuzz/src/harfbuzz-open-private.h +++ b/src/3rdparty/harfbuzz/src/harfbuzz-open-private.h @@ -79,7 +79,7 @@ HB_INTERNAL void _HB_OPEN_Free_LookupList( HB_LookupList* ll, HB_INTERNAL void _HB_OPEN_Free_Coverage( HB_Coverage* c ); HB_INTERNAL void _HB_OPEN_Free_ClassDefinition( HB_ClassDefinition* cd ); -HB_INTERNAL void _HB_OPEN_Free_Device( HB_Device** d ); +HB_INTERNAL void _HB_OPEN_Free_Device( HB_Device* d ); diff --git a/src/3rdparty/harfbuzz/src/harfbuzz-open.c b/src/3rdparty/harfbuzz/src/harfbuzz-open.c index adc6cec..15cd2c1 100644 --- a/src/3rdparty/harfbuzz/src/harfbuzz-open.c +++ b/src/3rdparty/harfbuzz/src/harfbuzz-open.c @@ -1353,12 +1353,12 @@ _HB_OPEN_Load_Device( HB_Device** device, HB_INTERNAL void -_HB_OPEN_Free_Device( HB_Device** d ) +_HB_OPEN_Free_Device( HB_Device* d ) { - if ( *d ) + if ( d ) { - FREE( (*d)->DeltaValue ); - FREE( *d ); + FREE( d->DeltaValue ); + FREE( d ); } } |