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fuzz/conf: bail out on long sequence of scalars #14340

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fuzz/conf: bail out on long sequence of scalars #14340

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12 changes: 12 additions & 0 deletions src/conf-yaml-loader.c
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Original file line number Diff line number Diff line change
Expand Up @@ -256,6 +256,12 @@ static int ConfYamlParse(
}
// we only check if the node's list was not empty at first
if (was_empty == 0) {
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
// do not fuzz quadratic-complexity overlong sequence of scalars
if (seq_idx > 256) {
goto fail;
}
#endif
seq_node = SCConfNodeLookupChild(parent, sequence_node_name);
}
if (seq_node != NULL) {
Expand Down Expand Up @@ -408,6 +414,12 @@ static int ConfYamlParse(
}
// we only check if the node's list was not empty at first
if (was_empty == 0) {
#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
// do not fuzz quadratic-complexity overlong sequence of scalars
if (seq_idx > 256) {
goto fail;
}
#endif
seq_node = SCConfNodeLookupChild(node, sequence_node_name);
}
if (seq_node != NULL) {
Expand Down
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