On 03/17/2017 05:30 PM, Nicolas Iooss wrote:
cil_resolve_ast() begins by checking whether one of its parameters is
NULL and "goto exit;" when it is the case. As extra_args has not been
initialized there, this leads to calling cil_destroy_tree_node_stack(),
__cil_ordered_lists_destroy()... on garbage values.
In practise this cannot happen because cil_resolve_ast() is only called
by cil_compile() after cil_build_ast() succeeded. As the if condition
exists nonetheless, fix the body of the if block in order to silence a
warning reported by clang Static Analyzer.
Signed-off-by: Nicolas Iooss <[email protected]>
Applied.
Thanks,
Jim
---
libsepol/cil/src/cil_resolve_ast.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libsepol/cil/src/cil_resolve_ast.c
b/libsepol/cil/src/cil_resolve_ast.c
index 87817ca29a5f..187050116379 100644
--- a/libsepol/cil/src/cil_resolve_ast.c
+++ b/libsepol/cil/src/cil_resolve_ast.c
@@ -3797,7 +3797,7 @@ int cil_resolve_ast(struct cil_db *db, struct
cil_tree_node *current)
uint32_t changed = 0;
if (db == NULL || current == NULL) {
- goto exit;
+ return rc;
}
extra_args.db = db;
--
James Carter <[email protected]>
National Security Agency
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