diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/bpf/core.c | 5 | ||||
| -rw-r--r-- | kernel/bpf/verifier.c | 5 |
2 files changed, 10 insertions, 0 deletions
diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c index 5ebece600aeb..dc906dfdff94 100644 --- a/kernel/bpf/core.c +++ b/kernel/bpf/core.c @@ -3144,6 +3144,11 @@ bool __weak bpf_jit_supports_insn(struct bpf_insn *insn, bool in_arena) return false; } +bool __weak bpf_jit_supports_fsession(void) +{ + return false; +} + u64 __weak bpf_arch_uaddress_limit(void) { #if defined(CONFIG_64BIT) && defined(CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE) diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c index 256cc5c1a7df..6b62b6d57175 100644 --- a/kernel/bpf/verifier.c +++ b/kernel/bpf/verifier.c @@ -24828,6 +24828,11 @@ int bpf_check_attach_target(struct bpf_verifier_log *log, case BPF_TRACE_FENTRY: case BPF_TRACE_FEXIT: case BPF_TRACE_FSESSION: + if (prog->expected_attach_type == BPF_TRACE_FSESSION && + !bpf_jit_supports_fsession()) { + bpf_log(log, "JIT does not support fsession\n"); + return -EOPNOTSUPP; + } if (!btf_type_is_func(t)) { bpf_log(log, "attach_btf_id %u is not a function\n", btf_id); |