third_party/libopenjpeg20/j2k.c - Issue 2006643003: Merge to M51: openjpeg: Prevent a buffer overflow in opj_j2k_read_SPCod_SPCoc.

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Unified Diff: third_party/libopenjpeg20/j2k.c

Issue 2006643003: Merge to M51: openjpeg: Prevent a buffer overflow in opj_j2k_read_SPCod_SPCoc. (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@2704

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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