diff options
| author |  Yafang Shao <laoar.shao@gmail.com>
| 2022-07-13 16:09:36 +0000 |
|---|---|---|
| committer |  Daniel Borkmann <daniel@iogearbox.net>
| 2022-07-14 22:51:35 +0200 |
| commit | 5002615a37b1e23a4b51c386ee22c8f90a70b4dd (patch) | |
| tree | 73e4fbe8dc4b36df020595c39f8ba811808fa60f /kernel/bpf | |
| parent | xsk: Mark napi_id on sendmsg() (diff) | |
| download | linux-5002615a37b1e23a4b51c386ee22c8f90a70b4dd.tar.gz linux-5002615a37b1e23a4b51c386ee22c8f90a70b4dd.tar.bz2 linux-5002615a37b1e23a4b51c386ee22c8f90a70b4dd.zip | |
bpf: Warn on non-preallocated case for BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE
BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE is also tracing type, which may
cause unexpected memory allocation if we set BPF_F_NO_PREALLOC. Let's
also warn on it similar as we do in case of BPF_PROG_TYPE_RAW_TRACEPOINT.
Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20220713160936.57488-1-laoar.shao@gmail.com
Diffstat (limited to 'kernel/bpf')
| -rw-r--r-- | kernel/bpf/verifier.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c index 26e7e787c20a..47fd6efa102a 100644 --- a/kernel/bpf/verifier.c +++ b/kernel/bpf/verifier.c @@ -12572,6 +12572,7 @@ static bool is_tracing_prog_type(enum bpf_prog_type type) case BPF_PROG_TYPE_TRACEPOINT: case BPF_PROG_TYPE_PERF_EVENT: case BPF_PROG_TYPE_RAW_TRACEPOINT: + case BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE: return true; default: return false; |