3 files changed, 40 insertions, 3 deletions
diff --git a/include/linux/capability.h b/include/linux/capability.h
index 027d7e4a853b..b4345b38a6be 100644
--- a/include/linux/capability.h
+++ b/include/linux/capability.h
@@ -256,6 +256,11 @@ static inline bool perfmon_capable(void)
 	return capable(CAP_PERFMON) || capable(CAP_SYS_ADMIN);
 }
 
+static inline bool bpf_capable(void)
+{
+	return capable(CAP_BPF) || capable(CAP_SYS_ADMIN);
+}
+
 /* audit system wants to get cap info from files as well */
 extern int get_vfs_caps_from_disk(const struct dentry *dentry, struct cpu_vfs_cap_data *cpu_caps);
 
diff --git a/include/uapi/linux/capability.h b/include/uapi/linux/capability.h
index e58c9636741b..c7372180a0a9 100644
--- a/include/uapi/linux/capability.h
+++ b/include/uapi/linux/capability.h
@@ -274,6 +274,7 @@ struct vfs_ns_cap_data {
    arbitrary SCSI commands */
 /* Allow setting encryption key on loopback filesystem */
 /* Allow setting zone reclaim policy */
+/* Allow everything under CAP_BPF and CAP_PERFMON for backward compatibility */
 
 #define CAP_SYS_ADMIN        21
 
@@ -374,7 +375,38 @@ struct vfs_ns_cap_data {
 
 #define CAP_PERFMON		38
 
-#define CAP_LAST_CAP         CAP_PERFMON
+/*
+ * CAP_BPF allows the following BPF operations:
+ * - Creating all types of BPF maps
+ * - Advanced verifier features
+ *   - Indirect variable access
+ *   - Bounded loops
+ *   - BPF to BPF function calls
+ *   - Scalar precision tracking
+ *   - Larger complexity limits
+ *   - Dead code elimination
+ *   - And potentially other features
+ * - Loading BPF Type Format (BTF) data
+ * - Retrieve xlated and JITed code of BPF programs
+ * - Use bpf_spin_lock() helper
+ *
+ * CAP_PERFMON relaxes the verifier checks further:
+ * - BPF progs can use of pointer-to-integer conversions
+ * - speculation attack hardening measures are bypassed
+ * - bpf_probe_read to read arbitrary kernel memory is allowed
+ * - bpf_trace_printk to print kernel memory is allowed
+ *
+ * CAP_SYS_ADMIN is required to use bpf_probe_write_user.
+ *
+ * CAP_SYS_ADMIN is required to iterate system wide loaded
+ * programs, maps, links, BTFs and convert their IDs to file descriptors.
+ *
+ * CAP_PERFMON and CAP_BPF are required to load tracing programs.
+ * CAP_NET_ADMIN and CAP_BPF are required to load networking programs.
+ */
+#define CAP_BPF			39
+
+#define CAP_LAST_CAP         CAP_BPF
 
 #define cap_valid(x) ((x) >= 0 && (x) <= CAP_LAST_CAP)
 
diff --git a/security/selinux/include/classmap.h b/security/selinux/include/classmap.h
index d233ab3f1533..98e1513b608a 100644
--- a/security/selinux/include/classmap.h
+++ b/security/selinux/include/classmap.h
@@ -27,9 +27,9 @@
 	    "audit_control", "setfcap"
 
 #define COMMON_CAP2_PERMS  "mac_override", "mac_admin", "syslog", \
-		"wake_alarm", "block_suspend", "audit_read", "perfmon"
+		"wake_alarm", "block_suspend", "audit_read", "perfmon", "bpf"
 
-#if CAP_LAST_CAP > CAP_PERFMON
+#if CAP_LAST_CAP > CAP_BPF
 #error New capability defined, please update COMMON_CAP2_PERMS.
 #endif