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 --- net/batman-adv/version.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) create mode 100644 net/batman-adv/version.c (limited to 'net/batman-adv/version.c') diff --git a/net/batman-adv/version.c b/net/batman-adv/version.c new file mode 100644 index 000000000..2b8006fe8 --- /dev/null +++ b/net/batman-adv/version.c @@ -0,0 +1,12 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include +#include + +/* WARNING userspace tools like batctl were relying on + * /sys/module/batman_adv/version to check if the module was loaded. If it + * isn't present, they usually error out before finishing setup of the batadv + * interface. It should be kept until it is unlikely that there are active + * installations of these "broken" versions of these tools with recent kernels. + */ +MODULE_VERSION(UTS_RELEASE); -- cgit v1.3.1