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Tue, 07 Apr 2026 13:02:29 -0700 (PDT) From: Justin Suess To: ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org, kpsingh@kernel.org, paul@paul-moore.com, mic@digikod.net, viro@zeniv.linux.org.uk, brauner@kernel.org, kees@kernel.org Cc: gnoack@google.com, jack@suse.cz, jmorris@namei.org, serge@hallyn.com, song@kernel.org, yonghong.song@linux.dev, martin.lau@linux.dev, m@maowtm.org, eddyz87@gmail.com, john.fastabend@gmail.com, sdf@fomichev.me, skhan@linuxfoundation.org, bpf@vger.kernel.org, linux-security-module@vger.kernel.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, Justin Suess Subject: [RFC PATCH 09/20] bpf: syscall: Handle Landlock ruleset maps Date: Tue, 7 Apr 2026 16:01:31 -0400 Message-ID: <20260407200157.3874806-10-utilityemal77@gmail.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260407200157.3874806-1-utilityemal77@gmail.com> References: <20260407200157.3874806-1-utilityemal77@gmail.com> Precedence: bulk X-Mailing-List: linux-security-module@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Allow userspace to create maps of type BPF_MAP_TYPE_LANDLOCK_RULESET via the bpf syscall. If CONFIG_SECURITY_LANDLOCK != y, these programs will still be accepted by the verifier but return an error at runtime. Signed-off-by: Justin Suess --- kernel/bpf/syscall.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c index 274039e36465..e885451b64a0 100644 --- a/kernel/bpf/syscall.c +++ b/kernel/bpf/syscall.c @@ -48,7 +48,8 @@ #define IS_FD_ARRAY(map) ((map)->map_type == BPF_MAP_TYPE_PERF_EVENT_ARRAY || \ (map)->map_type == BPF_MAP_TYPE_CGROUP_ARRAY || \ - (map)->map_type == BPF_MAP_TYPE_ARRAY_OF_MAPS) + (map)->map_type == BPF_MAP_TYPE_ARRAY_OF_MAPS || \ + (map)->map_type == BPF_MAP_TYPE_LANDLOCK_RULESET) #define IS_FD_PROG_ARRAY(map) ((map)->map_type == BPF_MAP_TYPE_PROG_ARRAY) #define IS_FD_HASH(map) ((map)->map_type == BPF_MAP_TYPE_HASH_OF_MAPS) #define IS_FD_MAP(map) (IS_FD_ARRAY(map) || IS_FD_PROG_ARRAY(map) || \ @@ -1488,6 +1489,7 @@ static int map_create(union bpf_attr *attr, bpfptr_t uattr) case BPF_MAP_TYPE_CPUMAP: case BPF_MAP_TYPE_ARENA: case BPF_MAP_TYPE_INSN_ARRAY: + case BPF_MAP_TYPE_LANDLOCK_RULESET: if (!bpf_token_capable(token, CAP_BPF)) goto put_token; break; -- 2.53.0