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| author | Eduard Zingerman <eddyz87@gmail.com> | 2026-09-04 01:33:23 -0700 |
|---|---|---|
| committer | Kumar Kartikeya Dwivedi <memxor@gmail.com> | 2026-09-04 12:58:04 +0200 |
| commit | 836b2fe544a5e9b5ce116622cb36fba33838c6fd (patch) | |
| tree | 95e38e4aaa0a6a78e373148b3d0af4aa2ab3d371 /scripts/modules-check.sh | |
| download | linux-stable-836b2fe544a5e9b5ce116622cb36fba33838c6fd.tar.gz linux-stable-836b2fe544a5e9b5ce116622cb36fba33838c6fd.zip | |
selftests/bpf: Check that JMP32 pointer vs zero jumps are not predictedgrafted
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 <npc@anthropic.com>
Suggested-by: Nicholas Carlini <npc@anthropic.com>
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/bpf/20260904083325.2083493-6-eddyz87@gmail.com
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Diffstat (limited to 'scripts/modules-check.sh')
| -rwxr-xr-x | scripts/modules-check.sh | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/scripts/modules-check.sh b/scripts/modules-check.sh new file mode 100755 index 000000000..4c8da90de --- /dev/null +++ b/scripts/modules-check.sh @@ -0,0 +1,26 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 + +set -e + +if [ $# != 1 ]; then + echo "Usage: $0 <modules.order>" >& 2 + exit 1 +fi + +exit_code=0 + +# Check uniqueness of module names +check_same_name_modules() +{ + for m in $(sed 's:.*/::' "$1" | sort | uniq -d) + do + echo "error: the following would cause module name conflict:" >&2 + sed -n "/\/$m/s:^\(.*\)\.o\$: \1.ko:p" "$1" >&2 + exit_code=1 + done +} + +check_same_name_modules "$1" + +exit $exit_code |