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 --- arch/mips/generic/proc.c | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 arch/mips/generic/proc.c (limited to 'arch/mips/generic/proc.c') diff --git a/arch/mips/generic/proc.c b/arch/mips/generic/proc.c new file mode 100644 index 000000000..cce2fde21 --- /dev/null +++ b/arch/mips/generic/proc.c @@ -0,0 +1,30 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (C) 2016 Imagination Technologies + * Author: Paul Burton + */ + +#include + +#include + +char *system_type; + +const char *get_system_type(void) +{ + const char *str; + int err; + + if (system_type) + return system_type; + + err = of_property_read_string(of_root, "model", &str); + if (!err) + return str; + + err = of_property_read_string_index(of_root, "compatible", 0, &str); + if (!err) + return str; + + return "Unknown"; +} -- cgit v1.3.1