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Fri, 14 Nov 2025 11:15:17 +0800 (CST) Received: from [10.174.178.46] (10.174.178.46) by kwepemk500005.china.huawei.com (7.202.194.90) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.11; Fri, 14 Nov 2025 11:15:16 +0800 Subject: Re: [PATCH mtd-utils 1/2] fsck.ubifs: don't use pointers that reference out-of-scope variables To: Yuta Hayama , References: <9276ac09-7c7d-41df-9ee2-094f1c8edf93@lineo.co.jp> <0828e7c7-c036-49ad-9019-8f94b6a87c27@lineo.co.jp> From: Zhihao Cheng Message-ID: Date: Fri, 14 Nov 2025 11:15:15 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.5.0 MIME-Version: 1.0 In-Reply-To: <0828e7c7-c036-49ad-9019-8f94b6a87c27@lineo.co.jp> X-Originating-IP: [10.174.178.46] X-ClientProxiedBy: kwepems500001.china.huawei.com (7.221.188.70) To kwepemk500005.china.huawei.com (7.202.194.90) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251113_191535_383588_2A6ACAA2 X-CRM114-Status: GOOD ( 14.07 ) X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="gbk"; Format="flowed" Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org 1NogMjAyNS8xMS8xMyAxNjozMSwgWXV0YSBIYXlhbWEg0LS1wDoKPiBzbiBpcyBhIHJlZmVyZW5j ZSB0byBlaXRoZXIgYW4gaW5vX25vZGUsIGRlbnRfbm9kZSwgb3IgZGF0YV9ub2RlLiBXaGVuIHNu Cj4gaXMgYWN0dWFsbHkgdXNlZCBpbiBjYWxscyB0byBkYmdfZnNjaygpIG9yIGluc2VydF9vcl91 cGRhdGVfZmlsZSgpLCB0aGVzZQo+IHZhcmlhYmxlcyBtdXN0IG5vdCBiZSBvdXQgb2Ygc2NvcGUu Cj4gCj4gU2lnbmVkLW9mZi1ieTogWXV0YSBIYXlhbWEgPGhheWFtYUBsaW5lby5jby5qcD4KPiAt LS0KPiAgIHViaWZzLXV0aWxzL2ZzY2sudWJpZnMvY2hlY2tfZmlsZXMuYyB8IDkgKysrLS0tLS0t Cj4gICAxIGZpbGUgY2hhbmdlZCwgMyBpbnNlcnRpb25zKCspLCA2IGRlbGV0aW9ucygtKQo+IAoK VGhhbmtzIGZvciBmaXhpbmcgaXQuCgpSZXZpZXdlZC1ieTogWmhpaGFvIENoZW5nIDxjaGVuZ3po aWhhbzFAaHVhd2VpLmNvbT4KCj4gZGlmZiAtLWdpdCBhL3ViaWZzLXV0aWxzL2ZzY2sudWJpZnMv Y2hlY2tfZmlsZXMuYyBiL3ViaWZzLXV0aWxzL2ZzY2sudWJpZnMvY2hlY2tfZmlsZXMuYwo+IGlu ZGV4IDFlMWE3N2IuLjU0MzAwYTMgMTAwNjQ0Cj4gLS0tIGEvdWJpZnMtdXRpbHMvZnNjay51Ymlm cy9jaGVja19maWxlcy5jCj4gKysrIGIvdWJpZnMtdXRpbHMvZnNjay51Ymlmcy9jaGVja19maWxl cy5jCj4gQEAgLTU3LDEyICs1NywxMyBAQCBzdGF0aWMgaW50IGNvbnN0cnVjdF9maWxlKHN0cnVj dCB1Ymlmc19pbmZvICpjLCB1bmlvbiB1Ymlmc19rZXkgKmtleSwKPiAgIAlzdHJ1Y3QgcmJfcm9v dCAqdHJlZSA9ICZGU0NLKGMpLT5zY2FubmVkX2ZpbGVzOwo+ICAgCXN0cnVjdCBzY2FubmVkX25v ZGUgKnNuID0gTlVMTDsKPiAgIAlzdHJ1Y3QgdWJpZnNfY2ggKmNoID0gKHN0cnVjdCB1Ymlmc19j aCAqKW5vZGU7Cj4gKwlzdHJ1Y3Qgc2Nhbm5lZF9pbm9fbm9kZSBpbm9fbm9kZTsKPiArCXN0cnVj dCBzY2FubmVkX2RlbnRfbm9kZSBkZW50X25vZGU7Cj4gKwlzdHJ1Y3Qgc2Nhbm5lZF9kYXRhX25v ZGUgZGF0YV9ub2RlOwo+ICAgCj4gICAJc3dpdGNoIChjaC0+bm9kZV90eXBlKSB7Cj4gICAJY2Fz ZSBVQklGU19JTk9fTk9ERToKPiAgIAl7Cj4gLQkJc3RydWN0IHNjYW5uZWRfaW5vX25vZGUgaW5v X25vZGU7Cj4gLQo+ICAgCQlpZiAoIXBhcnNlX2lub19ub2RlKGMsIGxudW0sIG9mZnMsIG5vZGUs IGtleSwgJmlub19ub2RlKSkgewo+ICAgCQkJaWYgKGZpeF9wcm9ibGVtKGMsIElOVkFMSURfSU5P X05PREUsIE5VTEwpKQo+ICAgCQkJCXJldHVybiBhZGRfaW52YWxpZF9ub2RlKGMsIGtleSwgbG51 bSwgb2ZmcywgaXRlcik7Cj4gQEAgLTc0LDggKzc1LDYgQEAgc3RhdGljIGludCBjb25zdHJ1Y3Rf ZmlsZShzdHJ1Y3QgdWJpZnNfaW5mbyAqYywgdW5pb24gdWJpZnNfa2V5ICprZXksCj4gICAJY2Fz ZSBVQklGU19ERU5UX05PREU6Cj4gICAJY2FzZSBVQklGU19YRU5UX05PREU6Cj4gICAJewo+IC0J CXN0cnVjdCBzY2FubmVkX2RlbnRfbm9kZSBkZW50X25vZGU7Cj4gLQo+ICAgCQlpZiAoIXBhcnNl X2RlbnRfbm9kZShjLCBsbnVtLCBvZmZzLCBub2RlLCBrZXksICZkZW50X25vZGUpKSB7Cj4gICAJ CQlpZiAoZml4X3Byb2JsZW0oYywgSU5WQUxJRF9ERU5UX05PREUsIE5VTEwpKQo+ICAgCQkJCXJl dHVybiBhZGRfaW52YWxpZF9ub2RlKGMsIGtleSwgbG51bSwgb2ZmcywgaXRlcik7Cj4gQEAgLTg2 LDggKzg1LDYgQEAgc3RhdGljIGludCBjb25zdHJ1Y3RfZmlsZShzdHJ1Y3QgdWJpZnNfaW5mbyAq YywgdW5pb24gdWJpZnNfa2V5ICprZXksCj4gICAJfQo+ICAgCWNhc2UgVUJJRlNfREFUQV9OT0RF Ogo+ICAgCXsKPiAtCQlzdHJ1Y3Qgc2Nhbm5lZF9kYXRhX25vZGUgZGF0YV9ub2RlOwo+IC0KPiAg IAkJaWYgKCFwYXJzZV9kYXRhX25vZGUoYywgbG51bSwgb2Zmcywgbm9kZSwga2V5LCAmZGF0YV9u b2RlKSkgewo+ICAgCQkJaWYgKGZpeF9wcm9ibGVtKGMsIElOVkFMSURfREFUQV9OT0RFLCBOVUxM KSkKPiAgIAkJCQlyZXR1cm4gYWRkX2ludmFsaWRfbm9kZShjLCBrZXksIGxudW0sIG9mZnMsIGl0 ZXIpOwo+IAoKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fXwpMaW51eCBNVEQgZGlzY3Vzc2lvbiBtYWlsaW5nIGxpc3QKaHR0cDovL2xpc3RzLmlu ZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1tdGQvCg==