Validate no common classes inside scope indices are defined. Reported-by: oss-fuzz (issue 64849) Signed-off-by: Christian Göttsche <cgzones@xxxxxxxxxxxxxx> --- This probably also resolves issue 64854, which I could not reproduce locally. Supersedes https://patchwork.kernel.org/project/selinux/patch/20231208151831.48343-1-cgzones@xxxxxxxxxxxxxx/ --- libsepol/src/policydb_validate.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libsepol/src/policydb_validate.c b/libsepol/src/policydb_validate.c index bd8e9f8f..d86f885e 100644 --- a/libsepol/src/policydb_validate.c +++ b/libsepol/src/policydb_validate.c @@ -1344,6 +1344,8 @@ bad: static int validate_scope_index(sepol_handle_t *handle, const scope_index_t *scope_index, validate_t flavors[]) { + if (!ebitmap_is_empty(&scope_index->scope[SYM_COMMONS])) + goto bad; if (validate_ebitmap(&scope_index->p_classes_scope, &flavors[SYM_CLASSES])) goto bad; if (validate_ebitmap(&scope_index->p_roles_scope, &flavors[SYM_ROLES])) -- 2.43.0
