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Unified Diff: third_party/libopenjpeg20/j2k.c

Issue 2001663002: openjpeg: Prevent a buffer overflow in opj_j2k_read_SPCod_SPCoc. (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@master
Patch Set: Created 4 years, 7 months ago
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Index: third_party/libopenjpeg20/j2k.c
diff --git a/third_party/libopenjpeg20/j2k.c b/third_party/libopenjpeg20/j2k.c
index 9056feb29a45907d9503d335893a984cbc038a3d..c7aa8db222676b815723cb1fd8ea4993dc708d90 100644
--- a/third_party/libopenjpeg20/j2k.c
+++ b/third_party/libopenjpeg20/j2k.c
@@ -8744,7 +8744,9 @@ static OPJ_BOOL opj_j2k_read_SPCod_SPCoc( opj_j2k_t *p_j2k,
p_j2k->m_specific_param.m_decoder.m_default_tcp;
/* precondition again */
- assert(compno < p_j2k->m_private_image->numcomps);
+ if (compno >= p_j2k->m_private_image->numcomps) {
+ return OPJ_FALSE;
+ }
l_tccp = &l_tcp->tccps[compno];
l_current_ptr = p_header_data;
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