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 --- scripts/mod/empty.c | 1 + 1 file changed, 1 insertion(+) create mode 100644 scripts/mod/empty.c (limited to 'scripts/mod/empty.c') diff --git a/scripts/mod/empty.c b/scripts/mod/empty.c new file mode 100644 index 000000000..49839cc4f --- /dev/null +++ b/scripts/mod/empty.c @@ -0,0 +1 @@ +/* empty file to figure out endianness / word size */ -- cgit v1.3.1