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 --- tools/perf/util/stream.h | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 tools/perf/util/stream.h (limited to 'tools/perf/util/stream.h') diff --git a/tools/perf/util/stream.h b/tools/perf/util/stream.h new file mode 100644 index 000000000..50f7e6e04 --- /dev/null +++ b/tools/perf/util/stream.h @@ -0,0 +1,41 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __PERF_STREAM_H +#define __PERF_STREAM_H + +struct callchain_node; +struct evlist; +struct evsel; + +struct stream { + struct callchain_node *cnode; + struct callchain_node *pair_cnode; +}; + +struct evsel_streams { + struct stream *streams; + const struct evsel *evsel; + int nr_streams_max; + int nr_streams; + u64 streams_hits; +}; + +struct evlist_streams { + struct evsel_streams *ev_streams; + int nr_evsel; +}; + +void evlist_streams__delete(struct evlist_streams *els); + +struct evlist_streams *evlist__create_streams(struct evlist *evlist, + int nr_streams_max); + +struct evsel_streams *evsel_streams__entry(struct evlist_streams *els, + const struct evsel *evsel); + +void evsel_streams__match(struct evsel_streams *es_base, + struct evsel_streams *es_pair); + +void evsel_streams__report(struct evsel_streams *es_base, + struct evsel_streams *es_pair); + +#endif /* __PERF_STREAM_H */ -- cgit v1.3.1