[RFC PATCH 25/35] libsepol: validate avtab types

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Check for invalid avtab types.

Signed-off-by: Christian Göttsche <cgzones@xxxxxxxxxxxxxx>
---
 libsepol/src/policydb_validate.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/libsepol/src/policydb_validate.c b/libsepol/src/policydb_validate.c
index fa128794..89830ff3 100644
--- a/libsepol/src/policydb_validate.c
+++ b/libsepol/src/policydb_validate.c
@@ -441,6 +441,20 @@ static int validate_avtab_key(avtab_key_t *key, validate_t flavors[])
 		goto bad;
 	if (validate_value(key->target_class, &flavors[SYM_CLASSES]))
 		goto bad;
+	switch (0xFFF & key->specified) {
+	case AVTAB_ALLOWED:
+	case AVTAB_AUDITALLOW:
+	case AVTAB_AUDITDENY:
+	case AVTAB_XPERMS_ALLOWED:
+	case AVTAB_XPERMS_AUDITALLOW:
+	case AVTAB_XPERMS_DONTAUDIT:
+	case AVTAB_TRANSITION:
+	case AVTAB_MEMBER:
+	case AVTAB_CHANGE:
+		break;
+	default:
+		goto bad;
+	}
 
 	return 0;
 
-- 
2.33.0




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