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/memory-model/linux-kernel.cfg | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) create mode 100644 tools/memory-model/linux-kernel.cfg (limited to 'tools/memory-model/linux-kernel.cfg') diff --git a/tools/memory-model/linux-kernel.cfg b/tools/memory-model/linux-kernel.cfg new file mode 100644 index 000000000..69b04f3aa --- /dev/null +++ b/tools/memory-model/linux-kernel.cfg @@ -0,0 +1,22 @@ +macros linux-kernel.def +bell linux-kernel.bell +model linux-kernel.cat +variant lkmmv2 +graph columns +squished true +showevents noregs +movelabel true +fontsize 8 +xscale 2.0 +yscale 1.5 +arrowsize 0.8 +showinitrf false +showfinalrf false +showinitwrites false +splines spline +pad 0.1 +edgeattr hb,color,indigo +edgeattr co,color,blue +edgeattr mb,color,darkgreen +edgeattr wmb,color,darkgreen +edgeattr rmb,color,darkgreen -- cgit v1.3.1