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 --- lib/locking-selftest-rtmutex.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) create mode 100644 lib/locking-selftest-rtmutex.h (limited to 'lib/locking-selftest-rtmutex.h') diff --git a/lib/locking-selftest-rtmutex.h b/lib/locking-selftest-rtmutex.h new file mode 100644 index 000000000..fce8714c4 --- /dev/null +++ b/lib/locking-selftest-rtmutex.h @@ -0,0 +1,12 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#undef LOCK +#define LOCK RTL + +#undef UNLOCK +#define UNLOCK RTU + +#undef RLOCK +#undef WLOCK + +#undef INIT +#define INIT RTI -- cgit v1.3.1