On 03-Mär 21:12, Andrii Nakryiko wrote: > On Tue, Mar 3, 2020 at 5:56 PM KP Singh <kpsingh@xxxxxxxxxxxx> wrote: > > > > From: KP Singh <kpsingh@xxxxxxxxxx> > > > > - Allow BPF_MODIFY_RETURN attachment only to functions that are: > > > > * Whitelisted by for error injection i.e. by checking > > within_error_injection_list. Similar disucssions happened for the > > bpf_overrie_return helper. > > 2 typos: discussions and bpf_override_return ;) /me bows his head in shame ;) Fixed. -KP > > > > > * security hooks, this is expected to be cleaned up with the LSM > > changes after the KRSI patches introduce the LSM_HOOK macro: > > > > https://lore.kernel.org/bpf/20200220175250.10795-1-kpsingh@xxxxxxxxxxxx/ > > > > - The attachment is currently limited to functions that return an int. > > This can be extended later other types (e.g. PTR). > > > > Signed-off-by: KP Singh <kpsingh@xxxxxxxxxx> > > --- > > Acked-by: Andrii Nakryiko <andriin@xxxxxx> > > > kernel/bpf/btf.c | 28 ++++++++++++++++++++-------- > > kernel/bpf/verifier.c | 31 +++++++++++++++++++++++++++++++ > > 2 files changed, 51 insertions(+), 8 deletions(-) > > > > [...]
