diff options
| author | KP Singh <kpsingh@google.com> | 2020-11-17 23:29:28 +0000 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2020-11-18 01:36:27 +0100 |
| commit | 3f6719c7b62f0327c9091e26d0da10e65668229e (patch) | |
| tree | d4552b1b12239b67d9a7a78cd6e0af42a3c3f79b /scripts | |
| parent | cbf398d76534427877e5824dd61611514cf284b3 (diff) | |
| download | lwn-3f6719c7b62f0327c9091e26d0da10e65668229e.tar.gz lwn-3f6719c7b62f0327c9091e26d0da10e65668229e.zip | |
bpf: Add bpf_bprm_opts_set helper
The helper allows modification of certain bits on the linux_binprm
struct starting with the secureexec bit which can be updated using the
BPF_F_BPRM_SECUREEXEC flag.
secureexec can be set by the LSM for privilege gaining executions to set
the AT_SECURE auxv for glibc. When set, the dynamic linker disables the
use of certain environment variables (like LD_PRELOAD).
Signed-off-by: KP Singh <kpsingh@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20201117232929.2156341-1-kpsingh@chromium.org
Diffstat (limited to 'scripts')
| -rwxr-xr-x | scripts/bpf_helpers_doc.py | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/scripts/bpf_helpers_doc.py b/scripts/bpf_helpers_doc.py index 31484377b8b1..c5bc947a70ad 100755 --- a/scripts/bpf_helpers_doc.py +++ b/scripts/bpf_helpers_doc.py @@ -418,6 +418,7 @@ class PrinterHelpers(Printer): 'struct bpf_tcp_sock', 'struct bpf_tunnel_key', 'struct bpf_xfrm_state', + 'struct linux_binprm', 'struct pt_regs', 'struct sk_reuseport_md', 'struct sockaddr', @@ -465,6 +466,7 @@ class PrinterHelpers(Printer): 'struct bpf_tcp_sock', 'struct bpf_tunnel_key', 'struct bpf_xfrm_state', + 'struct linux_binprm', 'struct pt_regs', 'struct sk_reuseport_md', 'struct sockaddr', |