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/testing/vsock/timeout.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) create mode 100644 tools/testing/vsock/timeout.h (limited to 'tools/testing/vsock/timeout.h') diff --git a/tools/testing/vsock/timeout.h b/tools/testing/vsock/timeout.h new file mode 100644 index 000000000..1c3fcad87 --- /dev/null +++ b/tools/testing/vsock/timeout.h @@ -0,0 +1,16 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#ifndef TIMEOUT_H +#define TIMEOUT_H + +enum { + /* Default timeout */ + TIMEOUT = 10 /* seconds */ +}; + +void sigalrm(int signo); +void timeout_begin(unsigned int seconds); +void timeout_check(const char *operation); +void timeout_end(void); +int timeout_usleep(useconds_t usec); + +#endif /* TIMEOUT_H */ -- cgit v1.3.1