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memcpy(x, NULL, 0) is undefined behavior

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TuxSH
2018-03-08 11:17:46 +01:00
parent 3d8ff446ad
commit b35c418558
7 changed files with 31 additions and 13 deletions
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4
exosphere/src/package2.c
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@@ -323,9 +323,9 @@ static void load_package2_sections(package2_meta_t *metadata, uint32_t master_ke
void *src_start = load_buf + sizeof(package2_header_t) + cur_section_offset;
size_t size = (size_t)metadata->section_sizes[section];
if (bootconfig_is_package2_plaintext()) {
if (bootconfig_is_package2_plaintext() && size != 0) {
memcpy(dst_start, src_start, size);
} else {
} else if (size != 0) {
package2_crypt_ctr(master_key_rev, dst_start, size, src_start, size, metadata->section_ctrs[section], 0x10);
}
cur_section_offset += size;