diff options
| author | Brecht Van Lommel <brechtvanlommel@gmail.com> | 2018-01-15 00:14:20 +0300 |
|---|---|---|
| committer | Brecht Van Lommel <brechtvanlommel@gmail.com> | 2018-01-18 02:54:07 +0300 |
| commit | e04d7c49dca9dc7bbf1cbe446b612aaa5ba12581 (patch) | |
| tree | f9248150341b73cd72978f9075a453fe021c2995 /source/blender/modifiers/intern/MOD_meshdeform.c | |
| parent | e0f2c7aff484c7448903a1466829675494ebae6c (diff) | |
Fix buffer overflow vulnerabilities in mesh code.
Solves these security issues from T52924:
CVE-2017-12081
CVE-2017-12082
CVE-2017-12086
CVE-2017-12099
CVE-2017-12100
CVE-2017-12101
CVE-2017-12105
While the specific overflow issue may be fixed, loading the repro .blend
files may still crash because they are incomplete and corrupt. The way
they crash may be impossible to exploit, but this is difficult to prove.
Differential Revision: https://developer.blender.org/D3002
Diffstat (limited to 'source/blender/modifiers/intern/MOD_meshdeform.c')
| -rw-r--r-- | source/blender/modifiers/intern/MOD_meshdeform.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/source/blender/modifiers/intern/MOD_meshdeform.c b/source/blender/modifiers/intern/MOD_meshdeform.c index 8f197ce3b99..99f0c892a3f 100644 --- a/source/blender/modifiers/intern/MOD_meshdeform.c +++ b/source/blender/modifiers/intern/MOD_meshdeform.c @@ -380,7 +380,7 @@ static void meshdeformModifier_do( return; } - cagecos = MEM_mallocN(sizeof(*cagecos) * totcagevert, "meshdeformModifier vertCos"); + cagecos = MEM_malloc_arrayN(totcagevert, sizeof(*cagecos), "meshdeformModifier vertCos"); /* setup deformation data */ cagedm->getVertCos(cagedm, cagecos); @@ -389,7 +389,7 @@ static void meshdeformModifier_do( /* We allocate 1 element extra to make it possible to * load the values to SSE registers, which are float4. */ - dco = MEM_callocN(sizeof(*dco) * (totcagevert + 1), "MDefDco"); + dco = MEM_calloc_arrayN((totcagevert + 1), sizeof(*dco), "MDefDco"); zero_v3(dco[totcagevert]); for (a = 0; a < totcagevert; a++) { /* get cage vertex in world space with binding transform */ @@ -486,8 +486,8 @@ void modifier_mdef_compact_influences(ModifierData *md) } /* allocate bind influences */ - mmd->bindinfluences = MEM_callocN(sizeof(MDefInfluence) * mmd->totinfluence, "MDefBindInfluence"); - mmd->bindoffsets = MEM_callocN(sizeof(int) * (totvert + 1), "MDefBindOffset"); + mmd->bindinfluences = MEM_calloc_arrayN(mmd->totinfluence, sizeof(MDefInfluence), "MDefBindInfluence"); + mmd->bindoffsets = MEM_calloc_arrayN((totvert + 1), sizeof(int), "MDefBindOffset"); /* write influences */ totinfluence = 0; |