From 506ada89629ec7059b96ecfb0dc7d33ece0103ca Mon Sep 17 00:00:00 2001 From: Eduard Zingerman Date: Fri, 4 Sep 2026 17:05:56 -0700 Subject: bpf: mark a NULL kfunc argument precise check_kfunc_arg() allows bpf_register_is_null() for nullable arguments w/o marking the underlying scalar register precise. Hence a checkpoint created on such a path would prune against arbitrary scalar value. Fixes: 3bda08b63670 ("bpf: Allow NULL buffers in bpf_dynptr_slice(_rw)") Signed-off-by: Eduard Zingerman Link: https://lore.kernel.org/r/20260904-register-is-null-precise-fixes-v1-5-0f5a360ff15d@gmail.com Signed-off-by: Alexei Starovoitov --- include/kunit/attributes.h | 50 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 include/kunit/attributes.h (limited to 'include/kunit/attributes.h') diff --git a/include/kunit/attributes.h b/include/kunit/attributes.h new file mode 100644 index 000000000..bc76a0b78 --- /dev/null +++ b/include/kunit/attributes.h @@ -0,0 +1,50 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * KUnit API to save and access test attributes + * + * Copyright (C) 2023, Google LLC. + * Author: Rae Moar + */ + +#ifndef _KUNIT_ATTRIBUTES_H +#define _KUNIT_ATTRIBUTES_H + +/* + * struct kunit_attr_filter - representation of attributes filter with the + * attribute object and string input + */ +struct kunit_attr_filter { + struct kunit_attr *attr; + char *input; +}; + +/* + * Returns the name of the filter's attribute. + */ +const char *kunit_attr_filter_name(struct kunit_attr_filter filter); + +/* + * Print all test attributes for a test case or suite. + * Output format for test cases: "# .: " + * Output format for test suites: "# : " + */ +void kunit_print_attr(void *test_or_suite, bool is_test, unsigned int test_level); + +/* + * Returns the number of fitlers in input. + */ +int kunit_get_filter_count(char *input); + +/* + * Parse attributes filter input and return an objects containing the + * attribute object and the string input of the next filter. + */ +struct kunit_attr_filter kunit_next_attr_filter(char **filters, int *err); + +/* + * Returns a copy of the suite containing only tests that pass the filter. + */ +struct kunit_suite *kunit_filter_attr_tests(const struct kunit_suite *const suite, + struct kunit_attr_filter filter, char *action, int *err); + +#endif /* _KUNIT_ATTRIBUTES_H */ -- cgit v1.3.1