[PATCH 24/48] klp-build: Reject patches to vDSO

Josh Poimboeuf
2026-04-23T04:04:35Z

vDSO code runs in userspace and can't be livepatched. Such patches also
cause spurious "new function" errors due to generated files like
vdso*-image.c having unstable line numbers across builds.

Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
---
scripts/livepatch/klp-build | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/livepatch/klp-build b/scripts/livepatch/klp-build
index 60231cf49e5c..deb1723b70de 100755
--- a/scripts/livepatch/klp-build
+++ b/scripts/livepatch/klp-build
@@ -357,7 +357,7 @@ check_unsupported_patches() {

for file in "${files[@]}"; do
case "$file" in
- lib/*|*.S)
+ lib/*|*/vdso/*|*.S)
die "${patch}: unsupported patch to $file"
;;
esac
--
2.53.0