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| author | Eduard Zingerman <eddyz87@gmail.com> | 2026-09-04 01:33:23 -0700 |
|---|---|---|
| committer | Kumar Kartikeya Dwivedi <memxor@gmail.com> | 2026-09-04 12:58:04 +0200 |
| commit | 836b2fe544a5e9b5ce116622cb36fba33838c6fd (patch) | |
| tree | 95e38e4aaa0a6a78e373148b3d0af4aa2ab3d371 /tools/perf/util/path.h | |
| download | linux-stable-836b2fe544a5e9b5ce116622cb36fba33838c6fd.tar.gz linux-stable-836b2fe544a5e9b5ce116622cb36fba33838c6fd.zip | |
selftests/bpf: Check that JMP32 pointer vs zero jumps are not predictedgrafted
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 <npc@anthropic.com>
Suggested-by: Nicholas Carlini <npc@anthropic.com>
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/bpf/20260904083325.2083493-6-eddyz87@gmail.com
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Diffstat (limited to 'tools/perf/util/path.h')
| -rw-r--r-- | tools/perf/util/path.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/tools/perf/util/path.h b/tools/perf/util/path.h new file mode 100644 index 000000000..fb850fb55 --- /dev/null +++ b/tools/perf/util/path.h @@ -0,0 +1,17 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _PERF_PATH_H +#define _PERF_PATH_H + +#include <stddef.h> +#include <stdbool.h> + +struct dirent; + +int path__join(char *bf, size_t size, const char *path1, const char *path2); +int path__join3(char *bf, size_t size, const char *path1, const char *path2, const char *path3); + +bool is_regular_file(const char *file); +bool is_directory(const char *base_path, const struct dirent *dent); +bool is_directory_at(int dir_fd, const char *path); + +#endif /* _PERF_PATH_H */ |