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 --- scripts/ksymoops/README | 7 +++++++ 1 file changed, 7 insertions(+) create mode 100644 scripts/ksymoops/README (limited to 'scripts/ksymoops') diff --git a/scripts/ksymoops/README b/scripts/ksymoops/README new file mode 100644 index 000000000..413043980 --- /dev/null +++ b/scripts/ksymoops/README @@ -0,0 +1,7 @@ +ksymoops has been removed from the kernel. It was always meant to be a +free standing utility, not linked to any particular kernel version. +The latest version can be found in +https://www.kernel.org/pub/linux/utils/kernel/ksymoops together with patches to +other utilities in order to give more accurate Oops debugging. + +Keith Owens Sat Jun 19 10:30:34 EST 1999 -- cgit v1.3.1