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 --- scripts/prune-kernel | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100755 scripts/prune-kernel (limited to 'scripts/prune-kernel') diff --git a/scripts/prune-kernel b/scripts/prune-kernel new file mode 100755 index 000000000..dadfd0e47 --- /dev/null +++ b/scripts/prune-kernel @@ -0,0 +1,25 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 + +# because I use CONFIG_LOCALVERSION_AUTO, not the same version again and +# again, /boot and /lib/modules/ eventually fill up. +# Dumb script to purge that stuff: + +for f in "$@" +do + if rpm -qf "/lib/modules/$f" >/dev/null; then + echo "keeping $f (installed from rpm)" + elif [ $(uname -r) = "$f" ]; then + echo "keeping $f (running kernel) " + else + echo "removing $f" + rm -f "/boot/initramfs-$f.img" "/boot/System.map-$f" + rm -f "/boot/vmlinuz-$f" "/boot/config-$f" + rm -rf "/lib/modules/$f" + if [ -x "$(command -v new-kernel-pkg)" ]; then + new-kernel-pkg --remove $f + elif [ -x "$(command -v kernel-install)" ]; then + kernel-install remove $f + fi + fi +done -- cgit v1.3.1