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/bootconfig/samples/bad-samekey.bconf | 6 ++++++ 1 file changed, 6 insertions(+) create mode 100644 tools/bootconfig/samples/bad-samekey.bconf (limited to 'tools/bootconfig/samples/bad-samekey.bconf') diff --git a/tools/bootconfig/samples/bad-samekey.bconf b/tools/bootconfig/samples/bad-samekey.bconf new file mode 100644 index 000000000..e8d983a45 --- /dev/null +++ b/tools/bootconfig/samples/bad-samekey.bconf @@ -0,0 +1,6 @@ +# Same key value is not allowed +key { + foo = value + bar = value2 +} +key.foo = value -- cgit v1.3.1