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Fri, 16 Oct 2026 00:38:53 -0700 (PDT) Message-ID: <6ad1d48d.a461c41f.282b8.7a97@mx.google.com> Content-Type: text/plain; charset="utf-8" Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: base64 From: Haoran Wang To: rostedt@goodmis.org, mhiramat@kernel.org Cc: linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, mathieu.desnoyers@efficios.com, haoranwangsec@gmail.com Date: Fri, 16 Oct 2026 15:38:49 +0800 Subject: [PATCH] tracing: reject trace events with an empty TP_STRUCT__entry RnJvbSAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwIE1vbiBTZXAgMTcg MDA6MDA6MDAgMjAwMQpGcm9tOiBIYW9yYW4gV2FuZyA8aGFvcmFud2FuZ3NlY0BnbWFpbC5jb20+ CkRhdGU6IEZyaSwgMTYgT2N0IDIwMjYgMTU6MTA6MDAgKzA4MDAKU3ViamVjdDogW1BBVENIXSB0 cmFjaW5nOiByZWplY3QgdHJhY2UgZXZlbnRzIHdpdGggYW4gZW1wdHkgVFBfU1RSVUNUX19lbnRy eQoKdHJhY2VfZXZlbnRfZ2V0X29mZnNldHMoKSB1bmNvbmRpdGlvbmFsbHkgZGVyZWZlcmVuY2Vz IHRoZSBmaXJzdCBlbnRyeSBvZgphbiBldmVudCBjbGFzcydzIGZpZWxkcyBsaXN0IHRocm91Z2gg bGlzdF9maXJzdF9lbnRyeSgpLiAgQSB0cmFjZXBvaW50CnRoYXQgZGVjbGFyZXMgYW4gZW1wdHkg VFBfU1RSVUNUX19lbnRyeSBuZXZlciBwb3B1bGF0ZXMgdGhhdCBsaXN0LiBJdHMKZmllbGRzX2Fy cmF5IGhvbGRzIG9ubHkgdGhlIHRlcm1pbmF0aW5nIHNlbnRpbmVsLCBzbyBsaXN0X2ZpcnN0X2Vu dHJ5KCkKcmV0dXJucyB0aGUgbGlzdCBoZWFkIGl0c2VsZiBhbmQgdGhlIGZvbGxvd2luZyB0YWls LT5vZmZzZXQgKyB0YWlsLT5zaXplCnJlYWRzIG1lbW9yeSBwYXN0IHN0cnVjdCB0cmFjZV9ldmVu dF9jbGFzcy4gIFRoZSBjb3JydXB0ZWQgcmVzdWx0IGlzCnRoZW4gdXNlZCBhcyB0aGUgQlBGIGNv bnRleHQtc2l6ZSBib3VuZCBpbiBfX3BlcmZfZXZlbnRfc2V0X2JwZl9wcm9nKCksCndoaWNoIGxl dHMgY29udGV4dC1yZWFkaW5nIEJQRiBwcm9ncmFtcyBhdHRhY2ggdG8gYSB6ZXJvLWZpZWxkIHRy YWNlcG9pbnQKd2hlbiB0aGV5IHNob3VsZCBiZSByZWplY3RlZCB3aXRoIC1FQUNDRVMuCgpSZWpl Y3Qgc3VjaCBldmVudHMgYXQgcmVnaXN0cmF0aW9uIGNhbiBmaXggdGhpcyBidWcuIGV2ZW50X2lu aXQoKSBpcyB0aGUKdW5pdmVyc2FsIGNob2tlcG9pbnQgaW52b2tlZCBmb3IgYm90aCBlYXJseS1i b290IGFuZCBtb2R1bGUgZXZlbnRzLCBhbmQKaXRzIHJldHVybiBpcyBlbmZvcmNlZCBieSBfX3Jl Z2lzdGVyX2V2ZW50KCksIHdoaWNoIHJlZnVzZXMgdG8gYWRkIHRoZSBjYWxsCnRvIGZ0cmFjZV9l dmVudHMuICBBbiBldmVudCB3aG9zZSBmaWVsZHNfYXJyYXlbMF0udHlwZSBpcyBOVUxMICh0aGUK ZW1wdHktVFBfU1RSVUNUX19lbnRyeSBzZW50aW5lbCkgaXMgcmVqZWN0ZWQgd2l0aCAtRUlOVkFM IGJlZm9yZQp0cmFjZV9ldmVudF9nZXRfb2Zmc2V0cygpIGNhbiBiZSByZWFjaGVkLiAgRHluYW1p YyBldmVudHMsIHdoaWNoIGNhcnJ5CnRoZSBUUkFDRV9GVU5DVElPTl9UWVBFIG1hcmtlciBpbiBm aWVsZHNfYXJyYXlbMF0udHlwZSBhbmQgcG9wdWxhdGUgdGhlCmZpZWxkcyBsaXN0IGxhemlseSB0 aHJvdWdoIGEgZGVmaW5lX2ZpZWxkcyBjYWxsYmFjaywgYXJlIHVuYWZmZWN0ZWQuCgpTaWduZWQt b2ZmLWJ5OiBIYW9yYW4gV2FuZyA8aGFvcmFud2FuZ3NlY0BnbWFpbC5jb20+Ci0tLQoga2VybmVs L3RyYWNlL3RyYWNlX2V2ZW50cy5jIHwgNSArKysrKwogMSBmaWxlIGNoYW5nZWQsIDUgaW5zZXJ0 aW9ucygrKQoKZGlmZiAtLWdpdCBhL2tlcm5lbC90cmFjZS90cmFjZV9ldmVudHMuYyBiL2tlcm5l bC90cmFjZS90cmFjZV9ldmVudHMuYwotLS0gYS9rZXJuZWwvdHJhY2UvdHJhY2VfZXZlbnRzLmMK KysrIGIva2VybmVsL3RyYWNlL3RyYWNlX2V2ZW50cy5jCkBAIC0zMjc5LDYgKzMyNzksMTEgQEAg c3RhdGljIGludCBldmVudF9pbml0KHN0cnVjdCB0cmFjZV9ldmVudF9jYWxsICpjYWxsKQogCWlm IChXQVJOX09OKCFuYW1lKSkKIAkJcmV0dXJuIC1FSU5WQUw7CiAKKwlpZiAoY2FsbC0+Y2xhc3Mt PmZpZWxkc19hcnJheSAmJgorCSAgICAhY2FsbC0+Y2xhc3MtPmZpZWxkc19hcnJheVswXS50eXBl ICYmCisJICAgICFjYWxsLT5jbGFzcy0+Z2V0X2ZpZWxkcykKKwkJcmV0dXJuIC1FSU5WQUw7CisK IAlpZiAoY2FsbC0+Y2xhc3MtPnJhd19pbml0KSB7CiAJCXJldCA9IGNhbGwtPmNsYXNzLT5yYXdf aW5pdChjYWxsKTsKIAkJaWYgKHJldCA8IDAgJiYgcmV0ICE9IC1FTk9TWVMpCi0tIAoyLjQzLjAK