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fs: fix out of bounds access when parsing directory paths
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596a0f2551
commit
6f54ab5716
2 changed files with 5 additions and 6 deletions
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@ -101,10 +101,9 @@ namespace ams::fs {
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s32 i;
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for (i = m_position; m_buffer[i] != StringTraits::DirectorySeparator; ++i) {
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if (m_buffer[i] == StringTraits::NullTerminator) {
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if (i == m_position) {
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m_position = -1;
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return nullptr;
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}
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char * const ret = (i != m_position) ? m_buffer + m_position : nullptr;
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m_position = -1;
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return ret;
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}
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}
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@ -41,8 +41,8 @@ namespace ams::fssystem {
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private:
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Result ResolveFullPath(fs::Path *out, const fs::Path &path) {
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if (path.IsMatchHead(m_before_dir.GetString(), m_before_dir.GetLength())) {
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R_TRY(out->InitializeWithFormat("%s%s", m_after_dir.GetString(), path.GetString() + m_before_dir.GetLength()));
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R_TRY(out->Normalize(fs::PathFlags{}));
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R_TRY(out->Initialize(m_after_dir));
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R_TRY(out->AppendChild(path));
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} else {
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R_TRY(out->Initialize(path));
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}
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