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stb_vorbis: Add missing error checks in comment reading mallocs

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Backported from https://github.com/nothings/stb/pull/989.

Fixes #40164.

(cherry picked from commit 24a01c0d39)
This commit is contained in:
Rémi Verschelde 2020-07-07 11:46:39 +02:00
parent 3f898f5207
commit 9c68989cf2
1 changed files with 3 additions and 0 deletions
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3
thirdparty/misc/stb_vorbis.c vendored
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@ -3630,6 +3630,7 @@ static int start_decoder(vorb *f)
//file vendor //file vendor
len = get32_packet(f); len = get32_packet(f);
f->vendor = (char*)setup_malloc(f, sizeof(char) * (len+1)); f->vendor = (char*)setup_malloc(f, sizeof(char) * (len+1));
if (f->vendor == NULL) return error(f, VORBIS_outofmem);
for(i=0; i < len; ++i) { for(i=0; i < len; ++i) {
f->vendor[i] = get8_packet(f); f->vendor[i] = get8_packet(f);
} }
@ -3637,10 +3638,12 @@ static int start_decoder(vorb *f)
//user comments //user comments
f->comment_list_length = get32_packet(f); f->comment_list_length = get32_packet(f);
f->comment_list = (char**)setup_malloc(f, sizeof(char*) * (f->comment_list_length)); f->comment_list = (char**)setup_malloc(f, sizeof(char*) * (f->comment_list_length));
if (f->comment_list == NULL) return error(f, VORBIS_outofmem);
for(i=0; i < f->comment_list_length; ++i) { for(i=0; i < f->comment_list_length; ++i) {
len = get32_packet(f); len = get32_packet(f);
f->comment_list[i] = (char*)setup_malloc(f, sizeof(char) * (len+1)); f->comment_list[i] = (char*)setup_malloc(f, sizeof(char) * (len+1));
if (f->comment_list[i] == NULL) return error(f, VORBIS_outofmem);
for(j=0; j < len; ++j) { for(j=0; j < len; ++j) {
f->comment_list[i][j] = get8_packet(f); f->comment_list[i][j] = get8_packet(f);