From 506ada89629ec7059b96ecfb0dc7d33ece0103ca Mon Sep 17 00:00:00 2001 From: Eduard Zingerman Date: Fri, 4 Sep 2026 17:05:56 -0700 Subject: bpf: mark a NULL kfunc argument precise check_kfunc_arg() allows bpf_register_is_null() for nullable arguments w/o marking the underlying scalar register precise. Hence a checkpoint created on such a path would prune against arbitrary scalar value. Fixes: 3bda08b63670 ("bpf: Allow NULL buffers in bpf_dynptr_slice(_rw)") Signed-off-by: Eduard Zingerman Link: https://lore.kernel.org/r/20260904-register-is-null-precise-fixes-v1-5-0f5a360ff15d@gmail.com Signed-off-by: Alexei Starovoitov --- lib/math/Kconfig | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100644 lib/math/Kconfig (limited to 'lib/math/Kconfig') diff --git a/lib/math/Kconfig b/lib/math/Kconfig new file mode 100644 index 000000000..0e6d9cffc --- /dev/null +++ b/lib/math/Kconfig @@ -0,0 +1,20 @@ +# SPDX-License-Identifier: GPL-2.0-only +config CORDIC + tristate "CORDIC algorithm" + help + This option provides an implementation of the CORDIC algorithm; + calculations are in fixed point. Module will be called cordic. + +config POLYNOMIAL + tristate + +config PRIME_NUMBERS + tristate "Simple prime number generator for testing" + help + This option provides a simple prime number generator for test + modules. + + If unsure, say N. + +config RATIONAL + tristate -- cgit v1.3.1