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 --- include/drm/intel/step.h | 62 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 include/drm/intel/step.h (limited to 'include/drm/intel/step.h') diff --git a/include/drm/intel/step.h b/include/drm/intel/step.h new file mode 100644 index 000000000..4de752010 --- /dev/null +++ b/include/drm/intel/step.h @@ -0,0 +1,62 @@ +/* SPDX-License-Identifier: MIT */ +/* Copyright © 2026 Intel Corporation */ + +#ifndef __STEP_H__ +#define __STEP_H__ + +#define STEP_ENUM_VAL(name) STEP_##name, + +#define STEP_NAME_LIST(func) \ + func(A0) \ + func(A1) \ + func(A2) \ + func(A3) \ + func(B0) \ + func(B1) \ + func(B2) \ + func(B3) \ + func(C0) \ + func(C1) \ + func(C2) \ + func(C3) \ + func(D0) \ + func(D1) \ + func(D2) \ + func(D3) \ + func(E0) \ + func(E1) \ + func(E2) \ + func(E3) \ + func(F0) \ + func(F1) \ + func(F2) \ + func(F3) \ + func(G0) \ + func(G1) \ + func(G2) \ + func(G3) \ + func(H0) \ + func(H1) \ + func(H2) \ + func(H3) \ + func(I0) \ + func(I1) \ + func(I2) \ + func(I3) \ + func(J0) \ + func(J1) \ + func(J2) \ + func(J3) + +/* + * Symbolic steppings that do not match the hardware. These are valid both as gt + * and display steppings as symbolic names. + */ +enum intel_step { + STEP_NONE = 0, + STEP_NAME_LIST(STEP_ENUM_VAL) + STEP_FUTURE, + STEP_FOREVER, +}; + +#endif /* __STEP_H__ */ -- cgit v1.3.1