From 836b2fe544a5e9b5ce116622cb36fba33838c6fd Mon Sep 17 00:00:00 2001 From: Eduard Zingerman Date: Fri, 4 Sep 2026 01:33:23 -0700 Subject: selftests/bpf: Check that JMP32 pointer vs zero jumps are not predicted Add jmp32_ptr_vs_zero_jne: the fall-through of the 32-bit compare, which the verifier used to skip, contains an out of bounds map value access, hence w/o the previous patch the program is accepted. See previous patch for detailed description. Reported-by: Nicholas Carlini Suggested-by: Nicholas Carlini Signed-off-by: Eduard Zingerman Link: https://lore.kernel.org/bpf/20260904083325.2083493-6-eddyz87@gmail.com Signed-off-by: Kumar Kartikeya Dwivedi --- lib/kunit/try-catch-impl.h | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 lib/kunit/try-catch-impl.h (limited to 'lib/kunit/try-catch-impl.h') diff --git a/lib/kunit/try-catch-impl.h b/lib/kunit/try-catch-impl.h new file mode 100644 index 000000000..6f401b97c --- /dev/null +++ b/lib/kunit/try-catch-impl.h @@ -0,0 +1,29 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Internal kunit try catch implementation to be shared with tests. + * + * Copyright (C) 2019, Google LLC. + * Author: Brendan Higgins + */ + +#ifndef _KUNIT_TRY_CATCH_IMPL_H +#define _KUNIT_TRY_CATCH_IMPL_H + +#include +#include + +struct kunit; + +static inline void kunit_try_catch_init(struct kunit_try_catch *try_catch, + struct kunit *test, + kunit_try_catch_func_t try, + kunit_try_catch_func_t catch, + unsigned long timeout) +{ + try_catch->test = test; + try_catch->try = try; + try_catch->catch = catch; + try_catch->timeout = timeout; +} + +#endif /* _KUNIT_TRY_CATCH_IMPL_H */ -- cgit v1.3.1